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Unit 2 - Motion and Stability Test Review

Total questions: 45

Worksheet time: 1hrs 1mins

Name
Class
Date
1.

Resistance of any physical object to any change in its state of motion (moving or still)

a)

Mass

b)

Matter

c)

Inertia

d)

Rule of Thumbs

2.

Force caused by one object rubbing against another.

a)

Inertia

b)

Friction

c)

Matter

d)

Mass

3.

A push or a pull of an object resulting from the object's interaction with another object.

a)

Matter

b)

Friction

c)

Inertia

d)

Force

4.

The overall force acting on an object; the sum of all forces acting on an object.

a)

Force

b)

Net Force

c)

Friction

d)

Inertia

5.

For every action there is an equal and opposite reaction.

a)

Unbalanced Force

b)

Newton's 2nd Law

c)

Newton's 1st Law

d)

Newton's 3rd Law

6.

Newton's second law is:

a)

For every action there is an equal and opposite reaction.

b)

F = ma

c)

An object at rest will remain at rest and an object in motion will reamin in moition until opposed by an unbalanced force.

d)

None of the above

7.

An object in rest stays in rest and an object in motion stays in motion unless opposed by an unbalanced force. What law of motion is this?

a)

Newton's First Law

b)

Newton's Second Law

c)

Newton's Third Law

8.

A non-contact force that pulls things to the Earth (or other large object)...

a)

gravity

b)

magnetism

c)

friction

d)

motion

9.

When your position changes, you're in ____________.

a)

motion

b)

force

10.
Why is person B having a hard time moving down the hill?
a)
Person B has more friction than person A.
b)
Person B has the same friction as person A.
c)
Person B is out of shape.
d)
Person B has less friction has person A.
11.

Which law best describes inertia

a)

1

b)

2

c)

3

d)

All of the above

12.
Newton's third law states that any action will have a(n) _______ and ______ reaction
a)
Equal and similar
b)
Equal and opposite
c)
Equal and different
d)
Greater and opposite
13.

Which is newtons first law states

a)

An object at rest will remain at rest unless a force is applied

b)

An object is moving

c)

An object has stopped

d)

An moving object will keep going when a force is applied to it

14.
The momentum of an object depends upon the object's ___________&_____________.  
a)
size and shape
b)
mass and speed
c)
mass and veloctiy
d)
mass and energy
15.
A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball. 
a)
55 kg*m/s
b)
100 kg*m/s
c)
250 kg*m/s
d)
500 kg*m/s
16.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
17.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
18.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
19.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
20.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
21.

What is the force of gravity on a person or object on the surface of a planet?

a)

Gravity

b)

Weight

c)

Mass

d)

Force

22.

A ______________ force is when two equal forces push/pull in the opposite direction.

Ex. Two men are pushing on a cart (on opposite sides) with the same exact amount of

force and the cart does NOT move because it is balanced.

a)

balanced

b)

unbalanced

23.

A ____________ force is when one force is larger than the other. The object will then

change its speed or the direction it is moving in.

a)

balanced

b)

unbalanced

24.

If a baseball is thrown in a straight path, what two forces cause the ball to eventually stop moving?

a)

gravity and friction

b)

mass and ground force

c)

wind resistance and mass

d)

negative acceleration and gravity

25.

If the masses of objects increase and their distance from each other remains the same, then the force of gravity between the two objects

a)

decreases

b)

increases

c)

remains the same

d)

increases and decreases

26.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move in both directions. 
27.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
28.

Two factors that affect the strength of the force of gravity between 2 objects are...

a)

mass and distance

b)

mass and matter

c)

distance and weight

d)

weight and mass

29.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
30.
Calculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s.
a)
18 J
b)
36 J
c)
12 J
d)
6 J
31.
As mass increases, KE ...
a)
increases
b)
decreases
c)
stays the same
32.
Which has a greater impact on KE?
a)
mass
b)
velocity
33.
As the velocity of an object decreases its KE will...
a)
increase
b)
decrease
c)
stay the same
34.
A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
35.
What is motion?
a)
Any chemical movement or change in position
b)
Any physical movement or change in position
c)
Any physical movement or change in position with respect to a reference point
d)
Any chemical movement or change in position with respect to a reference point
36.
What does the slope of a distance vs. time graph show you about the motion of an object?
a)
It tells you the TIME
b)
It tells you the DISTANCE
c)
It tells you the SPEED
d)
It tells you the DIRECTION
37.

The yellow-orange line represents the fastest centipede because the slope is the steepest

a)

True

b)

False

38.
Speed in a given direction is the definition of ____. 
a)
Speed
b)
Velocity
c)
Acceleration
d)
Direction
39.

What is an elastic collision?

a)

An elastic collision is an encounter between two bodies in which the total kinetic energy of the two bodies is different.

b)

An elastic collision is an encounter between two bodies in which the total kinetic energy of the two bodies remains the same.

c)

An inelastic collision is an encounter between two bodies in which the total kinetic energy of the two bodies remains the same.

40.

What is an inelastic collision?

a)

When two objects collide, becoming stuck together and internal kinetic energy is lost (but not really lost, it transfers to different forms of energy)

b)

When two objects collide, becoming stuck together and internal kinetic energy is lost

c)

When two objects don't collide, becoming stuck together and internal kinetic energy is lost (but not really lost, it transfers to different forms of energy)

41.
A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
42.

Lilly's cat ran through your yard. The cat has a mass of 5 kg. He is running at a speed of 3 m/s. What is the kinetic energy of the cat as he runs? (KE = 1/2mv2)

a)

8.5 J

b)

45 J

c)

7.5 J

d)

22.5 J

43.

A 50 kg skater pushed by a friend accelerates 5 m/sec2. How much force did the friend apply?

a)

45 N

b)

15 N

c)

10 N

d)

250 N

44.

What is the equation for momentum

a)

p=mv

b)

s=d/t

c)

kg*m/s

d)

F=ma

45.

What is the momentum of a 15kg girl moving at a speed of 1.3m/s?

a)

16 kg*m/s

b)

20 kg

c)

20 m/s

d)

20 kg*m/s

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