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OLD - Chap 2B-Intro to Motion Combined > Intro to Motion - Combined > Flashcards

Intro to Motion - Combined Flashcards

1
Q

Compare slopes at A and B

A

Both slopes are large and negative. A has a higher slope.

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2
Q
A
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3
Q

What would be the net force upon this object?

A

1 Newton to the right.

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4
Q

m/s SouthEast

Is a unit of?

A

Velocity

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5
Q

grams x miles/hr

Is a unit of?

A

Momentum

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6
Q

Describe the Slope

A

This is a medium constant negative slope.

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7
Q

Describe the velocity at E.

A

The velocity has decreased until it is amost zero.

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8
Q

Describe the Slope or Steepness.

A

Medium, Positive, and Constant Slope or Steepness.

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9
Q

Compare slopes at C and D.

A

Slopes at C and D are both large and negative. The slope at D is larger.

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10
Q

In linear motion, the difference between

-55 mph

and

+55 mph

is?

A

Direction only

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11
Q

Linear Motion

A

Motion along a line

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12
Q

What would be the net force upon this object?

A

10 N to the left.

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13
Q

Describe the Slope of this graph

A

Begins with a large positive slope.

The slope gradually decreases until the slope is equal to zero.

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14
Q

Acceleration can mean….

A

Speeding up

Slowing down

or

Turning

(Basically, anything you could feel while you were in a car would indicate acceleration)

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15
Q

Gravitational Field Strength near the Earth’s surface

A

9.8 newtons/kilogram

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16
Q

The amount of matter in an object.

A

Mass

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17
Q

Describe the position at D

A

Positive

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18
Q

Slope or Steepness at A is…..

A

The slope at A is large and negative

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19
Q

As you go along the curve from A to E, the slope

A

Decreases

It goes from large negative to zero.

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20
Q

Describe the Slope

A

This is a medium constant negative slope.

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21
Q

Velocity

Vector Quantity or not?

A

Vector Quantity

50 mph - North has both magnitude (50) and direction (North).

So, its a vector or vector quantity.

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22
Q

m/s

Is a unit of?

A

Speed

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23
Q

As you go from A to D, the slope

A

Increases.

It goes from a slope of zero to a large negative slope.

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24
Q

Describe the Slope

A

Medium Slope

Negative Slope

Constant Slope

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25
Q

Compare slopes at A and B

A

Both slopes are large and negative. A has a higher slope.

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26
Q

The slope at C is…

A

The slope at C is medium and positive

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27
Q

Describe the Steepness

A

Medium, Constant, Negative Steepness

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28
Q

Describe the Slope

A

The graph starts with a small positive slope. The slope increases until point “c” Then the slope begins to decrease.

The slope is positive at all times in this graph.

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29
Q

Describe the slope or steepness at B

A

Small negative slope

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30
Q

Compare slopes at C and D.

A

Slopes at C and D are both large and negative. The slope at D is larger.

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31
Q

In a motion graph, how do we decide which variable to put on the horizontal axis?

A

“Time”

Always goes on the horizontal axis for motion graphs in Mr. Bixel’s physical science class.

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32
Q

Describe the Slope

A

Medium, Constant, Positive.

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33
Q

Compare the slopes at points B and C

A

B has a high positive slope

C has a medium positive slope

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34
Q

Compare the slope of the line at points A and B.

A

Both have a high positive slope, but A has the highest slope.

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35
Q

How does the slope at point C compare to the slope at point D?

A

Both are postive slopes, but C has a higher slope.

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36
Q

Inertia

A

VERY close in meaning to “mass”

BUT

Inertia is usually used when you are talking about stopping a moving object or making a stationary object start moving.

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37
Q

Describe the slope

A

The graph starts with a large positive slope. The slope decreases to zero. Then, the slope becomes increasingly negative.

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38
Q

Describe the slope or steepness at A.

A

Zero

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39
Q

Describe the slope at point D

A

Small positive slope

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40
Q
A
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41
Q

Describe the position at C

A

Positive

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42
Q

Compare slopes at C and D.

A

Slopes at C and D are both large and negative. The slope at D is larger.

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43
Q

Compare the slopes at points B and C

A

B has a high positive slope

C has a medium positive slope

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44
Q

Displacement

A

How far you are from where you started, and in what direction.

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45
Q

Describe Slope at C

A

Slope at C is medium and negative

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46
Q

Describe the steepness or slope at A

A

Zero

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47
Q

Describe the slope

A

Negative Slope

Decreasing Slope

(We say the slope is “decreasing” when the “hill” is getting less steep.)

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48
Q

True or False?

This object changes direction.

A

True!

It started out moving in the positive direction, changed directions at point C, and later moves in the negative direction.

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49
Q

Describe the Slope or Steepness of this graph

A

Small, Positive and Constant

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50
Q

x

A

the symbol for position

(X marks the spot)

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51
Q

Any object experiencing zero net force will ALWAYS have _______________

A

Zero Acceleration

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52
Q

Scaler

A

A quantity that has a magnitude (size) but no direction.

Examples:

Temperature. 78 degrees tells you how “big” the temperature is, but there is no direction to 78 degrees.

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53
Q

”s” is a unit of

A

time

”s” means “seconds”

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54
Q

Describe the position at E

A

Positive

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55
Q

If an object is not accelerating, you can be absolutely positive that it is experiencing ________________.

A

Zero Net Force

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56
Q

The slope at C is…

A

The slope at C is medium and positive

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57
Q

The study of motion

A

Kinematics

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58
Q

The symbol for acceleration

A

a

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59
Q

“m/s” is a unit of

A

speed

(Units of speed will always have a distance over a time)

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60
Q

How does the slope at point C compare to the slope at point D?

A

Both are postive slopes, but C has a higher slope.

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61
Q

The slope(steepness) at D is…

A

The slope at D is large and positive.

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62
Q

When they describe the “top velocity” of a type of airplane, the reference object they would typically use would be what?

A

The air the plane is flying in.

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63
Q

Describe the velocity at A

A

High Positive Velocity

(Remember, the slope of a position time graph IS the velocity.)

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64
Q

True or False?

This object changes direction.

A

True.

The initial velocity of the object is negative. The object changes direction somewhere between C and D, and then moves in the positive direction.

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65
Q
A
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66
Q

As you go from A to E, the slope…

A

Decreases

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67
Q

a

A

The symbol for acceleration

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68
Q

As you go from A to E, the slope…

A

Decreases

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69
Q

Describe the slope of this graph

A

Slope is positive and decreases all the way down to zero slope. Then, the slope becomes increasingly negative

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70
Q

Describe the Slope of the Blue Line

A

Constant Slope of Zero

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71
Q

The slope at D is….

A

Large and Negative

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72
Q

Air Friction

A

The force of friction impeding the motion of an object fighting its way through the air.

(It has to bump the air molecules out of the way)

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73
Q

How does the slope at point C compare to the slope at point D?

A

Both are postive slopes, but C has a higher slope.

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74
Q

More mass means more ___________.

A

Inertia

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75
Q

Describe the Slope

A

Constant

Medium

Positive

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76
Q

Compare slopes at A and B

A

Both slopes are large and negative. A has a higher slope.

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77
Q

True/False

The entire time between when this cannonball

leaves the cannon until it hits the ground,

the cannonball is in

“Free Fall.”

A

True.

Once it leaves the cannon, the only force acting upon the cannonball is gravity.

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78
Q

Describe Slope at C

A

Slope at C is medium and negative

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79
Q

What quantity is this device used to measure?

A

Time

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80
Q

Objects with bigger mass have more _________

A

Inertia

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81
Q

Newton’s First Law

A

Objects in motion stay in motion

Objects at rest stay at rest

If its moving, it will keep moving in a straight line, at the same velocity, FOREVER, unless acted upon by a net force.

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82
Q

Describe the position and velocity at point A

A

Position is negative

Velocity is large and positive

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83
Q

Describe the Slope

A

The graph has a Constant Large Negative Slope

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84
Q

Slope at E is….

A

Zero

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85
Q

Describe the steepness or slope at A

A

Zero

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86
Q

Describe the Slope

A

Medium Slope

Negative Slope

Constant Slope

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87
Q

Velocity

A

The speed and direction an object is travelling.

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88
Q

Describe the position and velocity at point E

A

Object has reached the reference point and has come to a stop.

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89
Q

What is secret # 4 for understanding these graphs

A

Secret #4

Just use the word “Steepness” instead of Slope when you write down your description o fthe graph.

Then, go back and erase the word “Steepness” and write in the word slope.

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90
Q

Describe the Slope

A

Contant zero slope

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91
Q

Position at A is..

A

High positive

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92
Q

Acceleration = (8 mph) / second

A

Another way of saying that someone is accelerating in such a fashion that each second they were going 8 mph faster than the second before?

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93
Q

Describe the position at point A

A

The position at point A is zero. The object is at the reference point.

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94
Q

Compare slopes at C and D

A

Both are negative slopes

C has a higher slope

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95
Q

Describe the Slope of this graph

A

Begins with a large positive slope.

The slope gradually decreases until the slope is equal to zero.

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96
Q

cm/day

Is a unit of?

A

Speed

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97
Q

The position at A is

A

Zero.

It is at the reference point.

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98
Q

Describe the Slope

A

Medium, Constant, Positive.

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99
Q

Describe the position at A

A

Positive

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100
Q

Describe the Slope of the Red Line

A

The slope is infinite.

Some may describe this as “undefined.”

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101
Q

Describe the Slope of this Graph

A

Starts with medium positive slope.

Slope gradually increases until it is quite steep.

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102
Q

What would be the net force upon this object?

A

30 N to the right.

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103
Q

As you go from A to E, the slope…

A

Decreases

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104
Q

Describe the slope at point E.

A

Zero

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105
Q

If a graph has a positive steepness, how would you describe the slope

A

The graph has positive slope.

(Just replace the word steepness with slope)

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106
Q

What would the net force be upon this object?

A

2 N to the right

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107
Q

Definition of Mass

A

The amount of matter in an object.

(Each time you add an atom to an object, you add mass)

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108
Q

Three most common types of interaction

A

Touch

Gravity

Friction

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109
Q

The slope(steepness) at D is…

A

The slope at D is large and positive.

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110
Q

“hr” is a unit of

A

time

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111
Q

Compare the slope of the line at points A and B.

A

Both have a high positive slope, but A has the highest slope.

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112
Q

The slope at B is….

A

The slope is small and positive at point B

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113
Q

What are these things?

A

Ball Bearings

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114
Q

Slope at E is….

A

Zero

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115
Q

m/s - North

Is a unit of?

A

Velocity

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116
Q

As you go along the curve from A to D, the slope…

A

Becomes increasingly positive.

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117
Q

As you go along the curve from A to D, the slope…

A

Becomes increasingly positive.

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118
Q

In linear motion, how will we show the direction an object is travelling?

A

With a “+” sign or a “-“ sign.

The plus would mean one direction, and the minus would mean in the exact opposite direction.

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119
Q

Describe the velocity at A.

A

Large Negative Velocity

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120
Q

A letter written smaller and below the rest of the writing.

<span>v</span>t

Here the “ t “ is subscripted

A

Subscript

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121
Q

Interaction

A

When two objecst have an effect upon each other.

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122
Q

In order to describe the velocity of an object, you must always refer to a ___________ _____________.

A

reference object

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123
Q

Position at clock reading = zero

A

<span>x</span>0

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124
Q

newton

Is a unit of?

A

Force

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125
Q

Describe the motion of the object at D

A

At D, the object is moving quite fast in the negative direction.

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126
Q

Describe the Slope

A

Contant zero slope

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127
Q

Slope or Steepness at A is…..

A

The slope at A is large and negative

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128
Q

Force

Vector Quantity or not?

A

Vector

50 newtons downward has both magnitude (50) and direction (downward).

So, its a vector or vector quantity.

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129
Q

Describe the slope of this graph.

A

The slope starts out medium and positive and is fairly constant.

Then, the slope rapidly decreases to zero and then becomes increasingly negative.

At the end, the slope is medium, constant and negative.

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130
Q

What quantity is this device used to measure?

A

Mass

(Note, mass is different than weight)

Scales measure weight

Balances measure mass

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131
Q

Average Speed

A

A single speed that can be used to represent an object’s speed during a period of time, even if the object is changing speeds.

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132
Q

Sliding Fricition means…

A

The force of friction impeding the motion of an object sliding across a surface.

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133
Q

“mm/yr” is a unit of

A

Speed

(Units of speed will always have a distance over a time)

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134
Q

d

A

the symbol for distance

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135
Q

All of the red lines are ____________ to the red curve.

A

“Normal”

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136
Q

Describe the slope at point D

A

Small positive slope

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137
Q

Describe the steepness or slope at A

A

Zero

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138
Q

In motion along a line, what is the difference between the following two “velocities?”

17 m/s

-17 m/s

A

The objects are traveling at the same speed, but in opposite directions.

In linear motion, we can use plus and minus to represent different directions.

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139
Q

What can this tell you about mass and weight?

A

The Earth’s gravity applies a force of

9.8-Newtons to a 1-kg mass

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140
Q

Describe the slope

A

Negative Slope

Decreasing Slope

(We say the slope is “decreasing” when the “hill” is getting less steep.)

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141
Q

The size of the force of air friction is dependant upon

______________

and

_______________

A

The size and shape of an object

and

The speed at which the object is moving relative to the air.

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142
Q
A
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143
Q

In a motion graph, how do we decide which variable to put on the horizontal axis?

A

“Time”

Always goes on the horizontal axis for motion graphs in Mr. Bixel’s physical science class.

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144
Q

Describe the Slope

A

The slope is constant and it is zero.

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145
Q

Acceleration

A

That rate at which you change your velocity.

Example:

Every second, he was going 5mph faster than the second before.

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146
Q

The slope at B is….

A

The slope is small and positive at point B

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147
Q

The slope at D is….

A

Large and Negative

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148
Q

Describe the slope or steepness at A.

A

Zero

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149
Q

Describe the Slope

A

Zero

(I guess its constant too)

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150
Q

This is called a

A

Motion Map

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151
Q

Slope at E is….

A

Zero

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152
Q

Which object is moving faster?

A car going +10 mph

A moped going - 10 mph

A

Neither.

They are both going the same speed, but in different directions.

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153
Q

Is the following a description of a distance or a displacement?

He travelled 20 miles North.

A

Displacement

(Magnitude = 20 miles)

(Direction = North)

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154
Q

Describe the Slope

A

Initially, the slope is large and positive. The slope then decreases until it is small and positive.

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155
Q

Velocity at A is …

A

At A, the velocity is large and negative.

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156
Q

Compare the slopes at points B and C

A

B has a high positive slope

C has a medium positive slope

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157
Q

“Free Fall”

A

When the ONLY force acting upon an object is gravity.

This can be after an object is dropped.

It can also be after an object is thrown up.

It can even be after an object is thrown sideways.

In all these situations, the only force acting upon the object is gravity.

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158
Q

What quantity is this device used to measure?

A

Volume

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159
Q

True/False

The soccer ball shown in the picture is in “Free Fall.”

A

True.

It doesn’t matter if the ball is going up, down, or sideways. As long as the only force acting upon the ball is gravity, it is in “Free Fall.”

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160
Q

Tell me about this object at point E.

A

It is now quite far from the reference point in the negative direction, but the object has come to a stop.

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161
Q

How would you describe the slope (steepness) at point A?

A

High Positive Slope

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162
Q

Gravity

A

A force between any two objects with mass

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163
Q

Describe the Slope

A

The slope is constant and it is zero.

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164
Q

What word can be used in the exact same place as the word slope?

A

Steepness

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165
Q

Distance

Vector Quantity or not?

A

Not

25 meters does not have a direction.

No direction, not a vector.

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166
Q

Is “speed” a scaler or a vector?

A

It is a scaler. Speed has a magnitude (size) but no direction.

Example: 50 mph.

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167
Q

Electrical charges can apply a _________

A

Force

(Think of static electricity pulling a sock onto your shirt when you take them out of dryer.)

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168
Q

Compare the slopes at points B and C

A

B has a high positive slope

C has a medium positive slope

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169
Q

The slope at D is….

A

Large and Negative

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170
Q

v

A

the symbol for velocity

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171
Q

What is the formula for finding

Average Speed

A
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172
Q

Is velocity a vector or a scaler?

A

Velocity is a vector.

It has both magnitude (size) AND direction.

Example:

Her velocity was 30 mph north.

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173
Q

Slope or Steepness at A is…..

A

The slope at A is large and negative

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174
Q

The angle of a line on a graph

A

Slope

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175
Q

meter

Is a unit of?

A

Distance

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176
Q

Why hasn’t Mr. Bixel written my assignments down on the Moodle calendar for the past few days?

A

Because, something is wrong with the server, and he does not have access to Moodle.

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177
Q

Describe the slope at point E.

A

Zero

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178
Q

Describe the slope at point E.

A

Zero

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179
Q

Mass and Weight mean ____________ things.

A

Different

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180
Q

“m/s North” is a unit of

A

Velocity

(notice that it has a direction included)

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181
Q

Velocity at clock reading = t

A

<span>v</span>t

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182
Q

As you go from A to D, the slope

A

Increases.

It goes from a slope of zero to a large negative slope.

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183
Q

Describe the steepness or slope at A

A

Zero

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184
Q

Compare the slope of the line at points A and B.

A

Both have a high positive slope, but A has the highest slope.

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185
Q

Describe the Slope

A

Starts with a small positive slope. The slope increases until it is medium and positive.

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186
Q
A
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187
Q

Compare slopes at C and D

A

Both are negative slopes

C has a higher slope

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188
Q

What word can be used in the exact same place as the word slope?

A

Steepness

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189
Q

miles East

Is a unit of?

A

Displacement

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190
Q

<span>v</span>0

A

Velocity at clock reading = zero

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191
Q

A force is a

A

Push or a Pull

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192
Q

Describe the Steepness

A

Medium, Constant, Negative Steepness

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193
Q

Distance

A

How far you have travelled.

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194
Q

Describe the Steepness

A

Constant Medium Positive Steepness (Slope)

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195
Q

In which direction would the net force be upon this object?

A

To the left.

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196
Q

the symbol for position

A

x

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197
Q

Describe the slope at point E.

A

Zero

198
Q

The slope at B is….

A

The slope is small and positive at point B

199
Q

Describe the steepness

A

Negative Steepness

Decreasing Steepness

(We say the slope is “decreasing” when the “hill” is getting less steep.)

200
Q

Describe the slope at point D

A

Small positive slope

201
Q

As you go from A to D, the slope

A

Increases.

It goes from a slope of zero to a large negative slope.

202
Q

What would be the net force upon this object?

A

30 N to the right

203
Q

Mass means pretty much the same thing as ________

A

Inertia

204
Q

An object in motion will stay in motion in a straight line, forever, unless acted upon by an unbalanced force.

A

Half of Newton’s First Law

205
Q

Constant Speed

A

Not speeding up or slowing down

206
Q
A
207
Q

Time

Vector Quantity or not?

A

Not

3 seconds does not have a direction.

No direction, not a vector.

208
Q

Velocity at A?

A

High Positive.

(Its a velocity graph!!!)

209
Q

The slope at C is…

A

The slope at C is medium and positive

210
Q

Describe position and velocity at pont A

A

The object is at the reference point and has not yet started to move.

211
Q

A quantity that has both magnitude and direction.

Example:

Forces are vectors because if you push or pull on something, there is a magnitude (size) of your push, and there is always a direction of your push.

A

Vector

212
Q

An object at rest will remain at rest unless acted upon by an unbalanced force

A

The other half of Newton’s First Law

213
Q

The slope at C is…

A

The slope at C is medium and positive

214
Q

Describe the slope of this graph

A

Slope is positive and decreases all the way down to zero slope. Then, the slope becomes increasingly negative

215
Q

“miles” is a unit of

A

distance

216
Q

Velocity at clock reading = zero

A

<span>v</span>0

217
Q

Inertia means almost the same thing as __________

A

Mass

218
Q

Compare slopes at A and B

A

Both slopes are large and negative. A has a higher slope.

219
Q

Describe the slope at point D

A

Small positive slope

220
Q

You can reduce the friction between to sliding surfaces by coating the surfaces with a ______________.

A

Lubricant

(oil, grease. etc)

221
Q

Position at clock reading = “t”

A

<span>x</span>t

222
Q

30 meters is a distance, so its a scalar quantity.

If you add a direction so it reads

30 meters north, then it becomes

_______________ which is a ______________

A

If you add a direction so it reads

30 meters north, then it becomes

displacement which is a vector.

223
Q

Describe the motion of the object at D.

A

The object is slowing down, and has almost stopped. It is still moving slowly in the negative direction.

224
Q

Magnetism can apply a __________

A

Force

225
Q

Describe the Slope

A

Slope = Infinity

or

The slope is undefined.

226
Q

Describe the velocity at D

A

At D, the object is moving quite fast and in the positive direction.

227
Q

Describe the Slope

A

Starts with a small positive slope. The slope increases until it is medium and positive.

228
Q

Two definitions of acceleration

A

Change in speed or direction

or

Change in Velociy

229
Q

Describe the Slope of the Red Line

A

The slope is infinite.

Some may describe this as “undefined.”

230
Q

miles/hr - West

Is a unit of?

A

Velocity

231
Q

If you took this thingy to the moon and looked at it, the mass would _______________?

A

Stay the same.

The 1-kg label on th object will still say 1-kg, and it will still be correct.

232
Q

Describe the Slope

A

Slope = Infinity

or

The slope is undefined.

233
Q

Describe the Slope or Steepness.

A

Medium, Positive, and Constant Slope or Steepness.

234
Q

Velocity

Vector or Scaler?

A

Vector

235
Q

<span>x</span>t

A

Position at clock reading = “t”

236
Q

Describe the position of this object at point A.

A

HOGWASH!!!!!

This is a velocity graph. It tells me nothing about position!!!!!

237
Q

Describe the slope or steepness at A.

A

Zero

238
Q

Describe the Slope

A

The slope is zero

The slope is constant

239
Q
A
240
Q

Describe the slope at point D

A

Small positive slope

241
Q

Normal

A

Perpendicular

242
Q

Change in Momentum

A

Impulse

243
Q

Compare slopes at C and D.

A

Slopes at C and D are both large and negative. The slope at D is larger.

244
Q

Look carefully at the following graph. Does this show and object that is moving or standing still.

A

This shows an object that is moving at a very steady speed.

(Make sure you understand why)

245
Q

“m” is a unit of

A

distance

246
Q

Speed

Vector Quantity or not?

A

Not

50 mph does not have a direction.

No direction, not a vector.

247
Q

Distance

Vector or Scaler?

A

Scaler

(Distance has magnitude only)

248
Q

Velocity at C

A

Negative velocity

249
Q

How can you determine the direction in which friction acts upon a moving object

A

Friction will act in the direction opposite of the motion of the object.

250
Q

inch

Is a unit of?

A

Distance

251
Q

Describe the steepness or slope at A

A

Zero

252
Q

If objects in motion tend to stay in motion, forever, unless acted upon by a net force, why do we seem to always see objects slowing down on their own?

A

Friction

(This is the force usually slowing down objects, and it is hard to actually see where the friction is coming from)

253
Q

How does the slope at point C compare to the slope at point D?

A

Both are postive slopes, but C has a higher slope.

254
Q

What happens between B and C?

A

The object turns around.

(It was going in the negative direction, now it is going in the positive direction.

255
Q

Describe the Slope or Steepness of this graph

A

Small, Positive and Constant

256
Q

As you go along the curve from A to D, the slope…

A

Becomes increasingly positive.

257
Q

t

A

The symbol for time

258
Q

As you go along the curve from A to D, the slope…

A

Becomes increasingly positive.

259
Q

Gravity can apply a ___________

A

Force

260
Q

Speed

Vector or Scaler?

A

Scaler

(has only magnitude)

261
Q

If you say a ball is 30 feet up, what would typically be your reference point.

A

The ground below the ball.

(The ball would be 30 feet away from the reference point or ground in this case)

262
Q

What would be the net force upon this object?

A

10 Newtons to the left.

263
Q

Describe the Slope

A

The slope of a vertical line is infinity

(Some would say the slope is “undefined”)

264
Q

In Newton’s Third Law, which happens first, the action or the reaction.

A

Neither!

The “action” and “reaction” forces always happen at the exact same time.

265
Q

The slope(steepness) at D is…

A

The slope at D is large and positive.

266
Q

kilogram

Is a unit of?

A

Mass

267
Q

Describe the Slope of this Graph

A

Positive and Increasing

268
Q

Describe the position and velocity at point D.

A

The object is moving quite fast in the negative direction and is far from the reference point.

269
Q

Describe the position at A

A

High positive position

270
Q

Describe the Slope

A

The slope is medium, positive, and constant.

271
Q

Describe the steepness

A

Negative Steepness

Decreasing Steepness

(We say the slope is “decreasing” when the “hill” is getting less steep.)

272
Q

Describe the Slope of the Purple Line

A

Medium Positive Constant Slope

273
Q

Describe the slope at point D

A

Small positive slope

274
Q

Describe the velocity at A.

A

The velocity at A is large and positive.

(Check the Axes!!)

275
Q

How does the slope at point C compare to the slope at point D?

A

Both are postive slopes, but C has a higher slope.

276
Q

What is this object doing at point A?

A

This object is at the reference point and is moving quite fast in the negative direction.

277
Q

Describe the slope or steepness at B

A

Small negative slope

278
Q

As you go along the curve from A to E, the slope

A

Decreases

It goes from large negative to zero.

279
Q

Reference object

A

An object that can be used as a reference for both position and for velocity.

280
Q

Describe the slope at point E.

A

Zero

281
Q

Describe the slope of this graph

A

positive and increasing

282
Q

The word slope means ______________

A

Steepness

283
Q

The slope at B is….

A

The slope is small and positive at point B

284
Q

As you go along the curve from A to E, the slope

A

Decreases

It goes from large negative to zero.

285
Q

Slope or Steepness at A is…..

A

The slope at A is large and negative

286
Q

Air Friction

A

The force impeding the motion of an object traveling through the air.

287
Q

Describe the motion of the object at E.

A

The object is moving quite fast in the negative direction.

288
Q

The slope at D is….

A

Large and Negative

289
Q

As you go from A to E, the slope…

A

Decreases

290
Q

Acceleration

Vector Quantity or not?

A

Vector

- 5 m/s2 has both magnitude (5) and direction (negative).

So, its a vector or vector quantity.

291
Q

Describe the Slope

A

The slope is constant and zero

292
Q

As you go from A to D, the slope

A

Increases.

It goes from a slope of zero to a large negative slope.

293
Q

Instantaneous Speed

A

How fast an object is going at an instant in time. It is what is shown on the speedometer of a car.

294
Q

What can this thingy tell you about weight?

A

Weight is a force.

295
Q

The word slope means ______________

A

Steepness

296
Q

Net Force

A

The overall force acting upon an object.

297
Q

Describe the overall motion of this object.

A

Starts at rest in a negative position. It speeds up in the positive direction and passes the reference point.

298
Q

What quantity is this device used to measure?

A

Length

299
Q

Describe the slope or steepness at A.

A

Zero

300
Q

m/s2

Is a unit of?

A

Acceleration

301
Q

The slope at C is…

A

The slope at C is medium and positive

302
Q

Compare the slope of the line at points A and B.

A

Both have a high positive slope, but A has the highest slope.

303
Q

What would happen to your weight if you left Earth and went to Jupiter?

A

Your weight would go up.

Jupiter has a much stronger gravitational field than the Earth. Weight is the pull of gravity upon an object.

304
Q

What is this thing?

(scroll down and look at entire picture)

A

Your secret weapon to get 4 questions right on the upcoming test.

305
Q

The word “static” means….

A

at rest

306
Q

Describe the steepness of this graph

A

positive and increasing

307
Q

the symbol for velocity

A

v

308
Q

Normal Force means a force ___________ to a surface

A

Perpendicular

309
Q

As you go along the curve from A to D, the slope…

A

Becomes increasingly positive.

310
Q

A point or exact location that can be used to help describe the location of some other point or object.

A

Reference Point

311
Q

Compare slopes at C and D

A

Both are negative slopes

C has a higher slope

312
Q

Describe the slope or steepness at B

A

Small negative slope

313
Q

The slope(steepness) at D is…

A

The slope at D is large and positive.

314
Q

“mm/yr East” is a unit of

A

Velocity

(notice that it has a direction included)

315
Q

What is the formula for calculating momentum?

A

Momentum = Mass x Velocity

316
Q

Slope = rise/run

A

The formula for calculating the slope of a line.

317
Q

When we make a motion graph, what variable will ALWAYS be on the horizontal axis?

A

Time

(Even if time is the dependent variable, we will always put it on the horizontal axis in motion graphs.)

318
Q

The force of gravity upon an object

A

weight

319
Q

You walk all the way around a typical high school track. Its about 400 meters.

Your Distance = ___________

Your Displacement = _____________

A

Your Distance = ___\_400-m______\_

Your Displacement = ___\__0-m\________

Distance is how far you travel.

Displacement is how far you end up from the starting point.

320
Q

How would you describe the slope (steepness) at point A?

A

High Positive Slope

321
Q

The slope at D is….

A

Large and Negative

322
Q

How would you describe the slope (steepness) at point A?

A

High Positive Slope

323
Q

Describe the Slope of this Graph

A

Positive and Increasing

324
Q

Newton’s Third Law

A

For every action, there is an equal and opposite reaction.

325
Q

Describe the Slope

A

The slope is medium, positive, and constant.

326
Q

Describe the velocity of the object at E.

A

At E, the object has stopped, so it has zero velocity.

327
Q

Describe the Slope

A

The slope is constant and zero

328
Q

What is secret # 4 for understanding these graphs

A

Secret #4

Just use the word “Steepness” instead of Slope when you write down your description o fthe graph.

Then, go back and erase the word “Steepness” and write in the word slope.

329
Q

Another way to say perpendicular

A

Normal

330
Q

In order to describe the position of an object, you must always refer to a ___________ _____________.

A

Reference Point

(or reference object)

331
Q

Compare the slope of the line at points A and B.

A

Both have a high positive slope, but A has the highest slope.

332
Q

“days” is a unit of

A
333
Q

“inches / day2“ is a unit of

A

acceleration

(notice the the units on the bottom is days squared)

334
Q

Mass

A

How much “stuff” there is in an object.

(or how much matter)

(each added atom or molecule adds mass)

335
Q

acceleration / time graph

A

A motion graph with time on the horizontal axis and acceleration on the vertical axis.

336
Q

Describe the Slope

A

Medium

Constant

Negative

337
Q

The symbol for time

A

t

338
Q

Compare slopes at C and D.

A

Slopes at C and D are both large and negative. The slope at D is larger.

339
Q

Describe the slope or steepness at A.

A

Zero

340
Q

If all the forces on an object are balanced, then there is no net force. In this case, we say the object is in ____________

A

Equilibrium

341
Q

That rate at which you change your velocity.

Example:

Every second, he was going 5mph faster than the second before.

A

Acceleration

342
Q

Slope at E is….

A

Zero

343
Q

Position

A

The location of an object in relation to some “reference point”

344
Q

Describe the Slope of the Purple Line

A

Medium Positive Constant Slope

345
Q

Describe the slope

A

Initial large positive slope.

Slope

346
Q

You are about to go outside to take measurements necessary to calculate your top running speed. What measurments would you need to take.

A

Distance

and

Time

(because S = d/t )

347
Q

Another way of saying that someone is accelerating in such a fashion that each second they were going 7 meters per second faster than the second before?

A

Acceleration = (7 m/s) / s

or

7m/s2

348
Q

Compare the slopes at points B and C

A

B has a high positive slope

C has a medium positive slope

349
Q

Compare slopes at C and D.

A

Slopes at C and D are both large and negative. The slope at D is larger.

350
Q

Compare slopes at C and D

A

Both are negative slopes

C has a higher slope

351
Q

Describe the Steepness

A

Constant Medium Positive Steepness (Slope)

352
Q

m / s2 is a unit of

A

acceleration

(notice the the units on the bottom is seconds squared)

353
Q

Describe the Slope

A

Zero

(I guess its constant too)

354
Q

Slope or Steepness at A is…..

A

The slope at A is large and negative

355
Q

As you go along the curve from A to E, the slope

A

Decreases

It goes from large negative to zero.

356
Q

Describe the Slope

A

Medium

Constant

Negative

357
Q

kg m/sec

Is a unit of?

A

Momentum

358
Q

Vector

A

A quantity that has both magnitude and direction.

Example:

Forces are vectors because if you push or pull on something, there is a magnitude (size) of your push, and there is always a direction of your push.

359
Q

Describe the slope

A

The graph starts with a large positive slope. The slope decreases to zero. Then, the slope becomes increasingly negative.

360
Q

Subscript

A

A letter written smaller and below the rest of the writing.

<span>v</span>t

Here the “ t “ is subscripted

361
Q

Which object is moving the fastest?

A

A

The steepest line on a position/time graph represent the fastest moving object.

(A is moving the opposite direction from B and D)

362
Q

What would happen to your mass if you left Earth and went to Jupiter?

A

Nothing.

Mass is a measure of how much “stuff” or matter there is in an object.

363
Q

Describe Slope at C

A

Slope at C is medium and negative

364
Q

Slope or Steepness at A is…..

A

The slope at A is large and negative

365
Q
A
366
Q

Describe the velocity of the object at A.

A

The velocity of the object at point A is zero.

367
Q

Describe the slope

A

Initial large positive slope.

Slope

368
Q

Compare slopes at C and D

A

Both are negative slopes

C has a higher slope

369
Q

Slope

A

The angle of a line on a graph

370
Q

Describe the general motion of this object.

A

This object starts out “at rest.” It then gradually picks up speed as it passes the reference point moving in the negative direction.

371
Q

Describe the slope or steepness at B

A

Small negative slope

372
Q

Describe the velocity at E

A

Velocity at E is zero.

(the slope of a position/time graph IS the velocity)

373
Q

In linear motion, the “+” and the “-“ symbols are used to show what?

A

Direction

374
Q

Slope at E is….

A

Zero

375
Q

Describe Slope at C

A

Slope at C is medium and negative

376
Q

When we refer to the “trace” on a graph, we are talking about …

A

The best fit line or curve on the graph.

377
Q

Compare slopes at C and D

A

Both are negative slopes

C has a higher slope

378
Q

As you go along the curve from A to D, the slope…

A

Becomes increasingly positive.

379
Q

Kinematics

A

The study of motion

380
Q

Tension

A

A force exerted by a string or rope.

381
Q

How would you describe the slope (steepness) at point A?

A

High Positive Slope

382
Q

As you go from A to D, the slope

A

Increases.

It goes from a slope of zero to a large negative slope.

383
Q

“miles North” is a unit of

A

Displacement

(Displacement is a vector, so it has both magintude and direction.)

384
Q

Describe the Slope

A

The slope of a vertical line is infinity

(Some would say the slope is “undefined”)

385
Q

The formula for calculating the slope of a line.

A

Slope = rise/run

386
Q

The slope at B is….

A

The slope is small and positive at point B

387
Q

Describe the position at point A

A

At point A, the object is:

  • Far from the reference point.
  • In a negative position
388
Q

Describe the Slope

A

The graph starts with a small positive slope. The slope increases until point “c” Then the slope begins to decrease.

The slope is positive at all times in this graph.

389
Q

Describe Slope at C

A

Slope at C is medium and negative

390
Q

Definition of Weight

A

The force of gravity upon an object.

391
Q

<span>v</span>t

A

Velocity at clock reading = t

392
Q

If there is no air friction, which would experience a greater acceleration when dropped off a cliff, a large rock or a small rock?

A

Neither, both would accelerate at the same rate, and both would reach the ground at the same time.

393
Q

Describe the slope at point E.

A

Zero

394
Q

Magnitude

A

How big something is.

395
Q

Describe the Slope

A

Zero

396
Q

True or False

This motorcycle rider is in “Free Fall.”

A

True.

Once he goes off the jump, the only force acting upon him is the force of gravity. (Until he lands of course)

397
Q

Describe the Slope

A

The slope is zero

The slope is constant

398
Q

Position/Time graph

A

A motion graph with “time” on the horizontal axis and “position” on the vertical axis.

This graph shows the motion of 4 objects.

399
Q

Describe the Slope

A

Initially, the slope is large and positive. The slope then decreases until it is small and positive.

400
Q

Describe the Slope of the Blue Line

A

Constant Slope of Zero

401
Q

Describe the general motion of this object over the period of time graphed.

A

This object starts with a very high initial positve velocity, and a negative position. It slows down as it passes the reference point and eventually comes to rest at point E.

402
Q

If a graph has a positive steepness, how would you describe the slope

A

The graph has positive slope.

(Just replace the word steepness with slope)

403
Q

The slope(steepness) at D is…

A

The slope at D is large and positive.

404
Q

Compare the slope of the line at points A and B.

A

Both have a high positive slope, but A has the highest slope.

405
Q

Formula for finding Weight

Weight = ___________ x ____________

A

Weight = mass x gravity

406
Q

If an object is experiencing an unbalanced force, we know that the _________ _____________ is not zero.

A

Net Force

407
Q

Is displacement a vector or a scalar?

A

Displacement is a vector. It has both magnitude and a direction.

408
Q

Describe the steepness or slope at A

A

Zero

409
Q

miles/hr

Is a unit of?

A

Speed

410
Q

Describe the slope or steepness at A.

A

Zero

411
Q

Another way of saying that someone is accelerating in such a fashion that each second they were going 8 mph faster than the second before?

A

Acceleration = (8 mph) / second

412
Q

Describe the steepness of this graph

A

positive and increasing

413
Q

True/False

This fighter jet is in “Free Fall.”

A

False.

This fighter jet has more forces acting upon it than just gravity. It is experiencing the following forces:

  • Gravity
  • “Lift” (from the air on the wings)
  • “Thrust” (generated by the afterburners)
414
Q

“cm/day” is a unit of

A

speed

(Units of speed will always have a distance over a time)

415
Q

milliNewtons

Is a unit of?

A

Force

416
Q

Speed

A

How fast an object is traveling.

(Direction is not important)

417
Q

Touch

Gravity

Friction

A

The three things we often think about when we are looking for forces.

418
Q

If you took this thingy to the moon and looked at it, the weight would _______________?

A

Go down.

The moon has less gravity, so the red needle would only point to about 2.

419
Q

Formula for acceleration

Accleration =

A

Acceleration = change in velocity/change in time

can also be written as:

a = Δv / Δt

420
Q

Velocity at A

A

Zero

(remember, the slope of a position/time graph IS the velocity)

421
Q

How fast an object is traveling.

(Direction is not important)

A

Speed

422
Q

How would you describe the slope (steepness) at point A?

A

High Positive Slope

423
Q

As you go along the curve from A to E, the slope

A

Decreases

It goes from large negative to zero.

424
Q

Pounds

Is a unit of?

A

Force

425
Q

The location of an object in relation to some “reference point”

A

Position

426
Q

As you go from A to E, the slope…

A

Decreases

427
Q

The slope at D is….

A

Large and Negative

428
Q

“cm/hr West” is a unit of

A

Velocity

(notice that it has a direction included)

429
Q

Another name for Newton’s First Law

A

Law of Inertia

430
Q

The slope at B is….

A

The slope is small and positive at point B

431
Q

What can you tell about this object at point A?

A

It is “at rest” and it is quite far from the reference point. Its position is negative.

432
Q
A
433
Q

The blue line could also be consider to be ______________ to the red surface

A

“Normal”

434
Q

“cm West” is a unit of

A
435
Q

Impulse

A

Change in Momentum

436
Q

Describe the position at B.

A

Positive

437
Q

What control or controls in a car is often used to cause the car to accelerate?

A

Gas Pedal

Brakes

Steering Wheel

(Remember, an acceleration can mean speeding up, slowing down, or turning)

438
Q

How big something is.

A

Magnitude

439
Q

Describe the slope or steepness at B

A

Small negative slope

440
Q

“cm” is a unit of

A

distance

441
Q

When you describe the velocity of a car, your typical reference object would be what?

A

The surface of the road beneath the car.

442
Q

As you go from A to E, the slope…

A

Decreases

443
Q

Compare slopes at A and B

A

Both slopes are large and negative. A has a higher slope.

444
Q

A single speed that can be used to represent an object’s speed during a period of time, even if the object is changing speeds.

A

Average Speed

445
Q

Position at E is….

A

The position at E is almost zero

(it is very slightly positive)

446
Q

Describe the overall motion of this object.

A

Starts in a positive position with a high negative velocity. It passes the reference point while gradually slowing to a stop.

447
Q

Newton’s Second Law

A

A = F/M

(Acceleration = Force divided by Mass)

448
Q

Describe the Slope

A

Slope = 0 at the start.

Abruptly changes to constant negative medium slope.

Abruptly changes back to a slope of zero.

449
Q

Compare the slopes at points B and C

A

B has a high positive slope

C has a medium positive slope

450
Q

The definition of “Displacement” is “how far you are from the reference point and in what direction.”

Displacement can also often be thought of as:

A

How far you are from where you started. (and in what direction)

451
Q

The slope at C is…

A

The slope at C is medium and positive

452
Q

m/(s x s)

Is a unit of?

A

Acceleration

453
Q

<span>x</span>0

A

Position at clock reading = zero

454
Q

Describe the slope of this graph

A

positive and increasing

455
Q

A quantity that has a magnitude (size) but no direction.

Examples:

Temperature. 78 degrees tells you how “big” the temperature is, but there is no direction to 78 degrees.

A

Scaler

456
Q

Describe the velocity at point A

A

The velocity at point A is zero.

(This is a velocity graph!)

457
Q

The slope(steepness) at D is…

A

The slope at D is large and positive.

458
Q

How would you describe the slope (steepness) at point A?

A

High Positive Slope

459
Q

Velocity/Time graph

A

A motion graph with time on the horizontal axis and velocity on the vertical axis.

460
Q

Describe the Slope

A

The graph has a Constant Large Negative Slope

461
Q

Static Friction means

A

The force of friction preventing a motionless object from moving.

462
Q

Describe Slope at C

A

Slope at C is medium and negative

463
Q

Temperature

Vector Quantity or not?

A

Not

37 degrees does not have a direction.

No direction, not a vector.

464
Q

As you go from A to D, the slope

A

Increases.

It goes from a slope of zero to a large negative slope.

465
Q

Describe the slope of this graph.

A

The slope starts out medium and positive and is fairly constant.

Then, the slope rapidly decreases to zero and then becomes increasingly negative.

At the end, the slope is medium, constant and negative.

466
Q

How does the slope at point C compare to the slope at point D?

A

Both are postive slopes, but C has a higher slope.

467
Q

Describe the velocity at point E.

A

The velocity at point E is high and positive.

(Its a velocity graph!!!)

468
Q

kiloNewtons

Is a unit of?

A

Force

469
Q

Reference Point

A

A point or exact location that can be used to help describe the location of some other point or object.

470
Q

What is meant by the acronym:

A.U.T.O.graph

A

When we look at graphs, we will always think about:

A - the axes

U - the units

T - the trace

O - the origin

471
Q

What would be the net force upon this object?

A

100 Newtons upward

472
Q

Describe the Slope

A

Slope = 0 at the start.

Abruptly changes to constant negative medium slope.

Abruptly changes back to a slope of zero.

473
Q

Which object is not moving?

A

C

474
Q

True or false.

This object is moving at a constant speed.

A

False

475
Q

Slope at E is….

A

Zero

476
Q

“in” is a unit of

A

distance

477
Q

the symbol for distance

A

d

478
Q

Describe the Slope of this Graph

A

Starts with medium positive slope.

Slope gradually increases until it is quite steep.

479
Q
A
480
Q

What is happening at point D

A

The object has reached quite a high positive velocity and is about to blow past the reference point.

481
Q

Describe the Slope

A

Zero

482
Q

Displacement

Vector or Scaler?

A

Vector

483
Q

As you go along the curve from A to E, the slope

A

Decreases

It goes from large negative to zero.

484
Q

Describe the slope or steepness at B

A

Small negative slope

485
Q

What mathematical calculation would you do to determine the net force upon the skydiver shown here?

A

Net Force = (Force of Gravity) - (Force of Air Friction)

486
Q

Is the following a description of a distance or a displacement?

He traveled 30 meters.

A

Distance

It has no direction, so it cannot be a displacement.

487
Q

Describe the Slope

A

Constant

Medium

Positive

488
Q
A
489
Q

Compare slopes at A and B

A

Both slopes are large and negative. A has a higher slope.

490
Q

How fast an object is going at an instant in time. It is what is shown on the speedometer of a car.

A

Instantaneous Speed

491
Q

“Uniform Linear Motion”

is just a physicsy way of saying….

A

“Moving in a straight line at a steady speed.”

OLD - Chap 2B-Intro to Motion Combined (1 decks)

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