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Energy Test Review

Total questions: 57

Worksheet time: 2hrs 30mins

Name
Class
Date
1.
 Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
2.
The unit used to measure work is the 
a)
Watt
b)
Newton
c)
Joule
d)
meter
3.
The unit used to measure power is the 
a)
Watt
b)
Newton
c)
Joule
d)
Newton*meter
4.
A 5000N block is lifted 10 m. How much work was done?
a)
50000 J
b)
5000 J
c)
500 J
d)
50 J
5.
W=125 J
d=10 m
F=???
a)
12.5 N
b)
1250 N
c)
0.08 N
d)
135 N
6.

If 150 Joules of work is needed to move a box 10 meters, what force was used?

a)

1500 N

b)

15 N

c)

1.5 N

d)

150 N

7.
P=25 watts 
W=5000 Joules 
t=???
a)
200 sec
b)
0.0005 s
c)
125000 s
d)
125 s
8.
What is work?
a)
the amount of energy 
b)
the transfer of force over a distance
c)
rate of work in a given time
d)
the change in distance in a given time
9.

What is the equation for work?

a)

W = mass x acceleration

b)

W = force x distance

c)

W = force / distance

d)

W = speed / time

10.
What is the equation for power?
a)
P = Work/time
b)
P = Force/time
c)
P = time/distance
d)
P = Work * time
11.
If a group of workers can apply a force of 1,000 Newtons to move a crate 20 meters, what amount of work will they have accomplished?
a)
20,000 J
b)
200 J
c)
2,000 J
d)
20 J
12.
How much time is needed to produce 720 Joules of work if 90 watts of power is used? 
a)
0.125 s
b)
8 s
c)
64800 s
d)
80 s
13.
How much work is done in holding a 15 N sack of potatoes while waiting in line at the grocery store for 3 minutes?
a)
15 J
b)
45 J
c)
0 J
d)
5 J
14.
What is the definition for kinetic energy?
a)
the energy of motion (due to mass and velocity)
b)
stored energy due to position
c)
Energy at the top of a hill
15.

The equation for POWER is

a)

power = mass x time

b)

power = work / time

c)

power = time / work

d)

power = work x time

16.

The equation for POTENTIAL ENERGY is

a)

PE = mass x gravity x height

b)

PE = gravity x weight

c)

PE = height / work

d)

PE = work / time

17.

The equation for KINETIC ENERGY is

a)

KE = mass x gravity

b)

KE = 1/2 height x speed

c)

KE = mass2

d)

KE = 1/2 mass x speed2

18.

The unit for work (aka Newton-meter)

a)

Watt

b)

Power

c)

Work

d)

Joule

19.

Energy that is stored and held in readiness

a)

Kinetic

b)

Mechanical

c)

Work

d)

Potential

20.

Energy cannot be ________ or ___________.

a)

big/small

b)

left/right

c)

created/destroyed

d)

made/transferred

21.

Energy can be transformed from one form into another, but the total amount of energy never changes.

a)

Work-energy theorem

b)

Law of conservation of energy

c)

Newton's second law of motion

d)

King's theorem of energy

22.

Where would a car traveling on a roller coaster track have the most potential energy?

a)

At the bottom

b)

Halfway to the top

c)

at the top

d)

halfway to the bottom

e)

It is always the same

23.

If a 2 kg ball is traveling at 4 meters per second, what is its kinetic energy?

a)

1 J

b)

2 J

c)

4 J

d)

8 J

e)

16 J

24.

Which point has the most kinetic energy?

a)

Ball G

b)

Ball F

c)

Ball E

d)

Ball D

e)

Ball A

25.

As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?

a)

Both the potential energy and kinetic energy decrease

b)

The potential energy decreases while the kinetic energy increases

c)

The kinetic energy decreases while the potential energy increases

d)

Both the potential energy and kinetic energy increase

26.

If a bird is flying through the air with 10 J of kinetic energy and then it lands on the ground and has 0 J of potential energy what is the mechanical energy of the bird?

a)

0 J

b)

1 J

c)

10 J

d)

100 J

27.

A grape fruit has 1568 J of potential energy at the top of a tree, but when the grape fruit falls it has 16 J of kinetic energy. What is the mechanical energy of the grape fruit?

a)

0 J

b)

1584 J

c)

25,088 J

d)

98 J

28.

Energy that an object has due to its motion, shape, position, or a combination of these factors.

a)

Nuclear Energy

b)

Mechanical Energy

c)

Electrical Energy

d)

Chemical Energy

29.

Energy that is stored in the nucleus.

a)

Chemical Energy

b)

Mechanical Energy

c)

Thermal Energy

d)

Nuclear Energy

30.

A nuclear reaction when a nucleus splits into smaller pieces.

a)

Fusion

b)

Fission

31.

A nuclear reaction when small nuclei combine to form one large nucleus.

a)

Fusion

b)

Fission

32.

Nuclear energy is released through a _____________________.

a)

chemical reaction

b)

physical change

c)

nuclear reaction

d)

chemical change

33.

Objects that are very ________ have a lot of thermal energy.

a)

hot

b)

cold

c)

big

d)

small

34.

The total potential and kinetic energy of particles in an object is called _______________________. It can also be called heat energy.

a)

mechanical energy

b)

chemical energy

c)

electromagnetic radiation

d)

thermal energy

35.

Energy stored in chemical bonds.

a)

chemical energy

b)

nuclear energy

c)

electrical energy

d)

electromagnetic radiation

36.

We get chemical energy from our (a)   .

37.

Form of kinetic energy that travels through space in waves.

a)

Electromagnetic Radiation

b)

Electrical Energy

c)

Chemical Energy

d)

Nuclear Energy

38.
A 5000N block is lifted 10 m. How much work was done?
a)
50000 J
b)
5000 J
c)
500 J
d)
50 J
39.
Force is a _____ or _______
a)
simple    complex
b)
push     pull
c)
up      down
d)
in      out
40.
What is the unit for mass?
a)
Kilogram (Kg)
b)
Newton (N)
c)
Joule (J)
d)
Watt (W)
41.
 Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
42.
How much time is needed to produce 720 Joules of work if 90 watts of power is used? 
a)
0.125 s
b)
8 s
c)
64800 s
d)
80 s
43.
P=25 watts 
W=5000 Joules 
t=???
a)
200 sec
b)
0.0005 s
c)
125000 s
d)
125 s
44.

A 20 kg dog run to you at 8 m/s. What is its mass?

a)

8 m/s

b)

20 kg

c)

2.5 m/s

d)

640 J

45.

What is the unit for speed?

a)

Joules (J)

b)

Kilograms (kg)

c)

Meters (m)

d)

Meters per Second (m/s)

46.

A 1 kg bird flies south at 4 m/s. What is its KE?

a)

2 m/s

b)

8 J

c)

2 J

d)

4 J

47.
W=125 J
d=10 m
F=???
a)
12.5 N
b)
1250 N
c)
0.08 N
d)
135 N
48.

______________________ occurs when energy changes from one form to another.

a)

Energy transformation

b)

Energy transfer

c)

Energy balance

d)

Energy equilibrium

49.

Movement of energy from one object to another.

a)

Heat

b)

Energy Transfer

c)

Themal Energy

d)

Temperature

50.

The energy associated with movement is called...

a)

Chemical energy

b)

Thermal energy

c)

Sound energy

d)

Kinetic energy

51.

What type of energy is being transformed when you use a hairdryer?

a)

From thermal energy to electrical energy

b)

From electrical energy to kinetic energy

c)

From electrical energy to thermal energy

d)

From kinetic energy to thermal energy

52.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
53.

At which point is potential energy the greatest?

a)

W

b)

X

c)

Y

d)

Z

54.

The faster an object moves, the ________ kinetic energy it has.

a)

more

b)

less

55.
Which type of potential energy causes the arrow to shoot from the bow?
a)
kinetic
b)
elastic
c)
chemical
d)
gravitational
56.

Distance is measured in _____.

a)

grams

b)

meters

c)

time

d)

watts

57.

_____ is measured in Newtons (N).

a)

Speed

b)

Mass

c)

Work

d)

Force

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