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TEST REVIEW-Laws of Motion, Energy, Work & Power

Total questions: 60

Worksheet time: 53mins

Name
Class
Date
1.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
2.
Which has more Inertia? (so need more force to move) 
a)
Truck
b)
Ant
c)
A cat
d)
A skateboard
3.

Which law best explains why people remain in motion when a car crashes, if they are not wearing a seat belt?

a)

Newton's 1st Law of Inertia

b)

Newton's 2nd Law of F=ma

c)

Newton's 3rd Law of Action-Reaction

d)

Newton's Law of Biology

4.

When the air is released from a balloon, the air moves in one direction, and the balloon moves in the opposite direction. Which law best explains the motion of the balloon?

a)

Newton's 1st Law of Inertia

b)

Newton's 2nd Law of F=ma

c)

Newton's 3rd Law of Action-Reaction

5.

Which law best explains how objects accelerate when a force is applied?

a)

Newton's 1st Law of Inertia

b)

Newton's 2nd Law of F=ma

c)

Newton's 3rd Law of Action-Reaction

6.

The first law of motion states that objects in motion will:

a)

stop

b)

accelerate

c)

stay in motion

d)

rest

7.

Because of inertia, a resting object ________.

a)

will remain at rest

b)

will move at a constant speed

c)

will eventually move

d)

is unbalanced

8.

Which one of Newton’s Laws of Motion best explains why the dishes do not move when the table cloth is removed?

a)

Newton's 1st Law of Inertia

b)

Newton's 2nd Law of F=ma

c)

Newton's 3rd Law of Action-Reaction

9.

Which law best explains why the boat moves in the opposite direction that Sally moves as she jumps to shore?

a)

Newton's 1st Law of Inertia

b)

Newton's 2nd Law of F=ma

c)

Newton's 3rd Law Action-Reaction

10.
The swimmer moves her hand down and to the left and her body goes forward to the right.
a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

11.
A rocket is sent into space.  When the power dies out, the rocket will just keep floating and moving in space forever (unless an unbalanced force, such as a meteor, runs into it).
a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

None of them

12.

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

13.

A force of 250 N is applied to an object that accelerates at a rate of 5 m/sec2.  What is the mass of the object?

a)

100kg 

b)

1,250kg

c)

50kg

d)

5kg

14.

What is the acceleration of a 50 kg object pushed with a force of 500 newtons?

a)

100 m/s2

b)

25,000 m/s2

c)

10 m/s2

d)

25 m/s2

15.
What is the net force?
a)
65 N left
b)
65 N right
c)
35 N left
d)
35 N right
16.
If these boys are pulling with the same amount of force.  What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
17.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
18.

What is the sum of all forces acting on an object?

a)

Unbalanced force

b)

Net force

c)

Friction

d)

Balanced force

19.
The amount of matter in an object is 
a)
pressure
b)
weight
c)
mass
d)
force
20.
The force of gravity acting on an object is the object's ______.
a)
mass
b)
matter
c)
weight 
d)
friction 
21.
A person would weigh less on on the Moon than on the Earth because . . .
a)
Moon has more mass, and therefore more gravity
b)
Moon has less mass, and therefore more gravity
c)
Moon has more mass, and therefore less gravity
d)
Moon has less mass and therefore less gravity
22.

A squirrel has a weight of 4.9 N. What is his Mass if he is running on the Ground?

a)

4.9 kg

b)

9.8 N/kg

c)

0.5 kg

d)

5.0 kg

23.

Which of the following are examples of Types of Friction?

a)

Static

b)

Balanced

c)

Sliding

d)

Unbalanced

e)

Rolling

24.

A girl weighs 300 N what is her mass here on Earth?

a)

40.8 kg

b)

41 kg

c)

30.6 kg

d)

300 N

25.

Objects like a motorcycle that move on wheels experience

a)

rolling friction.

b)

sliding friction.

c)

static friction.

d)

fluid friction.

26.

There is usually less friction involved with rolling friction compared to sliding friction.

a)

True

b)

Not even close to being true.

27.

Air resistance is a type of fluid friction.

a)

True

b)

False

28.

Friction _____________ motion

a)

Works in the same direction as

b)

Opposes

c)

Has not effect on

d)

Pulls against

29.

The force of friction between SURFACES NOT IN MOTION

a)

Static Friction

b)

Sliding Friction (Kinetic Friction)

c)

Rolling Friction

30.

Force that opposes movement between touching surfaces

a)

Gravity

b)

Weight

c)

Friction

d)

Air Resistance

31.

You are swimming. As you move your arms in and out of the water, what type of friction is occurring?

a)

static friction

b)

gravity

c)

fluid friction

d)

sliding friction

32.

A skydiver experiences a life saving type of friction. What type of friction?

a)

static

b)

sliding

c)

rolling

d)

fluid

33.

The kid on the playground experiences what kind of friction?

a)

static

b)

sliding

c)

rolling

d)

fluid

34.

What is the potential energy of a 3 kg ball that is on the ground?

a)

0 J

b)

3 J

c)

9.8 J

d)

29.4 J

35.

If a 8 kg cart is sitting still at top of a ramp, what is the kinetic energy of the cart? KE=12m⋅v2KE=\frac{1}{2}m\cdot v^2

a)

0 J

b)

78.4 J

c)

6 J

d)

56.8 J

36.

Water stored in a water tower possesses

a)

Potential energy

b)

Kinetic energy

c)

Solar energy

d)

Electromagnetic energy

37.

Gravitational potential energy depends on the _________ and ___________ of the object

a)

Height and mass

b)

Friction and movement

c)

Mass and movement

d)

Height and friction

38.

When you strech a rubber band, you are storing _________ energy.

a)

gravitational potential

b)

elastic potential

c)

kinetic

d)

thermal

39.

Energy cannot be created or destroyed, only converted fron one form to another (Pick 2)

a)

True

b)

False

c)

Law of Conservation of Energy

d)

Law of Conservation of Mass

40.

At which point does the ball has the greatest gravitational potential energy (GPE)?

a)

A

b)

G

c)

D

d)

C

e)

G

41.

When the PE= 20 J toward the lower part of the diagram, what is the KE?

a)

100 J

b)

80 J

c)

50 J

d)

20 J

42.

Kinetic energy is the energy an object has due to its

a)

mass

b)

weight

c)

motion

d)

position

43.
Calculate the KE of a moving 4 kilogram object traveling at a velocity of 3 m/s.
a)

18 J

b)

36 J

c)

12 J

d)

6 J

44.

A 25N block is lifted 10 m. How much work was done?

a)

50000 J

b)

2.5 J

c)

500 J

d)

250 J

45.

Two factors that determine work are...

a)

Force

b)

Mass

c)

Velocity

d)

Distance

46.

Match the Units:

a)
Newtons
1.

Force

b)

Watts

2.

Power

c)
Joules
3.

Energy, Work

d)
Meters
4.

Distance

47.

Fred kicks a ball to George and does 20J of work on it. How much force was used if he kicks it 4 m?

a)

80 N

b)

5 N

c)

4 N

d)

80 J

48.

Find the distance an object traveled if a force of 350 N acted on it to produce 0 work?

a)

3 m

b)

2 m

c)

0 m

49.

If you use 30 J of energy to move an object, you have done ____ J of work.

a)

3

b)

10

c)

30

d)

0

50.

If you run up the stairs slower you will

a)

do more work.

b)

do less work.

c)

generate more power.

d)

generate less power.

51.
What is the power of a kitchen blender if it can perform 3,750 joules of work in 15 seconds?
a)

56, 250 watts

b)

250 watts

c)

275 watts

52.

What is the GPE at point A

a)

14 J

b)

12 J

c)

6 J

d)

8 J

53.

What is the KE at point B?

a)

14 J

b)

12 J

c)

6 J

d)

8 J

54.

What is the GPE at the top?

a)

50 J

b)

25 J

c)

0 J

d)

100 J

55.

What are the energy transformations that occur with the toaster oven?

a)

Radiant - heat - light

b)

Sound - thermal - heat

c)

Chemical - light- heat

d)

Electrical - thermal

56.

Energy cannot be created nor destroyed. Just _________

a)

heat

b)

transferred

c)

do it

d)

manifested

57.

The two main categories for energy are:

a)

Mechanical & Chemical

b)

Potential & Kinetic

c)

Kinetic & Mechanical

d)

Potential & Chemical

58.
Potential energy that depends on height or position from surface of the Earth is
a)
Gravitational potential energy 
b)
Chemical potential energy 
c)
Elastic potential energy 
d)
Magnetic potential energy 
59.
what type of energy is stored in a battery?
a)
electrical
b)
chemical
c)
thermal
d)
mechanical
60.

Match the following forms of energy

a)
1.

Thermal

b)
2.

Nuclear

c)
3.

Chemical

d)
4.

Electromagnetic

e)
5.

Electrical

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