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Physics > Midterm > Flashcards

Midterm Flashcards

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AP® Physics flashcards Physics 101 flashcards
0
Q

What is the rate at which you travel a certain distance

A

Speed

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1
Q

What is a quantity that has both magnitude and speed

A

Vector

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2
Q

What is the change in displacement divided by the change in time

A

Velocity

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3
Q

What is the difference between speed and velocity

A

Speed only has magnitude velocity has magnitude and direction

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4
Q

What is acceleration

A

The rate of change in velocity

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5
Q

What happens after two seconds of you drop your pumpkin off the roof?

A

Accelerates -20m/s

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6
Q

If you throw something straight up at 20 m/s after 1 second it is traveling at_______?

A

10 m/s

20-10=10

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7
Q

If you throw an object up at 1m/s and Sally throws one up at 3 m/s how do the distances compare

A

Maximum hieght is 9x higher

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8
Q

What is the force of gravity always equal to

A

Mg

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9
Q

When you fire a bullet sideways and drop one which hits the ground first

A

Same time

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10
Q

What happens if you drop a bottle outside you car window with no air resostance

A

Lands next to car

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11
Q

With oar resostance where will the bottle land

A

Behind the car

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12
Q

An objects resistance to the change in motion is called _____

A

Inertia

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13
Q

What is the measure of an objects inertia

A

Mass

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14
Q

What happens when there is no net force on an object

A

Equilibrium

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15
Q

What happens if you increase the angle at which you are pulling an object

A

Fpx decrease and fn decreases

16
Q

If you increase the angle on a frictionless ramp the normal force will_______

A

Go down

17
Q

What does friction depend on

A

Force and type of surface

18
Q

Friction doesn’t depend d on_______

A

Surface area or velocity

19
Q

Is static friction = to less than or greater than your push

A

Greater or equal to

20
Q

Is kinetic friction less than or greater then your push

A

Less than

21
Q

What happens to friction if you pull with a greater angle

A

It goes down

22
Q

What is momentum

A

Inertia in motion

23
Q

What does impulse equal

A

Force x time

24
Q

What

Is an in elastic collision

A

Stick together

25
Q

What is an elastic collision

A

Start apart go apart

26
Q

Explosion

A

Start together go apart

27
Q

What is work equal to

A

Force times distance

28
Q

Power = _______

A

W/t

29
Q

In ramp qu agitations what does fgx equal and what does fgy equal

A 
Fgx= sin
Fgy= cos
30
Q

In pulling problems what does fpx= and fpy=

A

Fpx= cos

Fpy=sin

31
Q

What equation do you use to find fgx on a ramp problem?

A

Fgx= fg sin(angle)

Physics (8 decks)

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