Chap 2 - 1DM Flashcards

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1
Q

xf

A

final position

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1
Q

vy

A

velocity in y direction

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1
Q

Instantaneous acceleration

A

The acceleration at a single instant in time.

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2
Q

speed

A

how fast an object is travelling (independent of direction)

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2
Q

dx

A

a really really small change in x

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2
Q
A
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2
Q
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2
Q
A
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4
Q

xo

A

position at time = 0

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5
Q
A
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6
Q
A
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7
Q

uniform linear motion

A

traveling at a constant velocity (in a line)

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8
Q

Linear Motion

A

Motion along a line

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9
Q

instantaneous velocity

A

velocity at a single instant of time

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10
Q

vx

A

velocity in x direction

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11
Q
A
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12
Q

Inclined plane

A

a flat surface that is on an angle.

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13
Q

uniform motion

A

traveling at a constant velocity (in a line)

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13
Q
A
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14
Q

uniformly accelerated motion

A

motion with a constant acceleration

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16
Q
A
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16
Q
A

average acceleration

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17
Q
A
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18
Q

turning point

A

the point where an object changes direction. At this point, the instantaneous velocity will equal zero.

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19
Q
A
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19
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19
Q
A
21
Q
A
22
Q
A
23
Q
A
24
Q

distance

A

How far you have travelled

25
Q

the slope of a y/t graph is equal to the

A

velocity in the y direction

27
Q

t

A

time

29
Q

kinematics

A

The study of motion

30
Q
A
32
Q

the area under an v/t graph is equal to the

A

change in position

33
Q

dy

A

a really really small change in y

34
Q
A
36
Q

The derivative of a sum is equal to the

A

sum of the derivatives

37
Q
A
38
Q
A
39
Q
A
40
Q
A
41
Q
A
43
Q

the slope of an x/t graph is equal to the

A

velocity in the x direction

44
Q
A
45
Q

dt

A

a really really small change in time

46
Q
A
48
Q

displacement

A

how far you are from where you started

49
Q
A
50
Q
A
52
Q

The area under an a/t graph is equal to the

A

change in velocity

53
Q
A
54
Q
A

instantaneous acceleration

55
Q
A

the derivative of x with respect to t

56
Q

free fall

A

moving under the influence of one and only one force … gravity

57
Q
A
58
Q

g

A

free fall acceleration

59
Q
A

“limit as delta t goes to zero”

what happens when the change in time gets really, really small

60
Q

Vector or Scaler?

VELOCITY

A

Velocity is a vector

61
Q

Vector or Scaler

SPEED

A

Speed is a scaler

62
Q

A ____________ contains both magnitude and direction.

A

vector

63
Q

Constant Velocity

A

Traveling in such a fashion that you are not speeding up, slowing down, or turning.

64
Q

Constant Speed

A

Traveling in such a fashion that you are not speeding up or slowing down.

(Turning would be allowed as long as you maintained your speed)

65
Q

In both of our models so far,

(Constant Velocity and Uniform Linear Acceleration)

the direction of the force is…

A

Perfectly parallel to the direction of motion.

(Either in the same direction or in exactly the opposite direction)