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Energy and Energy Conservation Review

Total questions: 38

Worksheet time: 39mins

Name
Class
Date
1.
What is an example of Radiant energy?
a)
Electromagnetic waves
b)
Burning Logs
c)
Vibrations
d)
Gravitational potential
2.
Kinetic energy is energy due to...
a)
interactions between objects or particles
b)
motion
c)
elasticity
d)
mass
3.
Potential energy is energy that is...
a)
stored
b)
already used
c)
being used currently
d)
never going to be used
4.
What is energy?
a)
the ability to cause change
b)
the ability to resist change
c)
the ability to lack change
d)
the ability to 
5.
"Energy can be transformed from one form into another or transformed from one region or another, but energy cannot be created or destroyed."
Which law is this?
a)
Law of Conservation of Mass
b)
Newton's Second Law
c)
Law of Conservation of Energy
d)
Newton's Third Law
6.
Thermal energy is...
a)
burning logs
b)
turning on a fan
c)
sun energy
d)
splitting of nuclei
7.
Which energy transformation occurs in a toaster?
a)
chemical to electric
b)
electric to thermal
c)
kinetic to chemical
d)
thermal to potential
8.
When something is dropped, what type of energy transfer takes place?
a)
Kinetic -> Potential
b)
Gravitational Potential -> Kinetic -> Sound
c)
Electrical -> Chemical
d)
Heat -> Nuclear
9.
During photosynthesis, what type of energy transfer takes place?
a)
Heat -> Chemical Potential
b)
Chemical Potential -> Light
c)
Light -> Chemical Potential
d)
Heat -> Light
10.
Food has _______ potential energy that our bodies transform into kinetic energy.
a)
Elastic
b)
Nuclear 
c)
Gravitational
d)
Chemical
11.
Which of the following best describes the energy transfer that takes place when you use a battery?
a)
Chemical PE -> Electrical
b)
Electrical -> Chemical PE
c)
Nuclear PE -> Electrical
d)
Electrical -> Nuclear PE
12.

The picture shows what type of transformation

a)

Electrical to mechanical

b)

light to electric

c)

electrical to light

d)

light to light

13.

What type of energy does a rock have when it is sitting at the edge of a cliff.

a)

Potential

b)

Kinetic

14.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
15.
Which point has the greatest kinetic energy?
a)
W
b)
X
c)
Y
d)
Z
16.
What is happening to the energy of the girl from point A to point B
a)
kinetic changes to potential
b)
potential changes to kinetic
c)
energy is lost
d)
energy is gained
17.
Why won't the roller coaster reach over the second hill?
a)
because it is going slow
b)
because energy cannot be created
c)
because it is going fast
d)
because energy cannot be destroyed
18.
Which bowling ball has LESS kinetic energy
a)
8 m/s
b)
10 m/s
c)
they have the same amount of enery
d)
none of these
19.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
20.
When a pendulum swings, at which point is potential energy at its greatest? (assume there is no friction)
a)
1 and 5
b)
2 and 4
c)
3 
d)
4 and 5
21.
Which is an example of chemical energy?
a)
a horse pulling a cart
b)
a dog digesting food
c)
a marching band in a parade
22.
When you rub your hands together on a cold day, you use friction to convert
a)
Mechanical energy into thermal energy
b)
Thermal energy into nuclear energy
c)
Nuclear energy into electrical energy.
d)
Electrical energy into radiant energy
23.
Describe the energy transformation in this picture.
a)
Potential to Kinetic
b)
Kinetic to Potential
c)
No transformation - it's all potential.
d)
No transformation - it's all kinetic.
24.
Describe the energy in this picture.
a)
Gravitational Potential
b)
Kinetic
c)
Elastic Potential
d)
No Energy
25.
Describe the energy in the picture.
a)
Gravitational Potential
b)
Kinetic
c)
Elastic Potential
d)
No energy.
26.
At which position would the roller coaster be transforming kinetic energy to potential energy?
a)
A to B
b)
B to C
c)
C to D
d)
No such transformation.
27.
A car that travels twice as fast as another when braking to a stop will skid:
a)
Twice as far
b)
Four times as far
c)
Depends on the mass of the cars
28.
What are the two factors that affect kinetic energy?
a)
time and energy
b)
power and mass
c)
mass and speed
d)
time and work
29.

What is the equation for gravitational potential energy

a)

mv

b)

1/2 mv^2

c)

mgh

d)

Ft

30.

What is the correct unit for energy?

a)

meters (m)

b)

kilogram meters per second (kg m/s)

c)

Newtons (N)

d)

Joules (J)

31.

What kind of energy does a marble rolling at the bottom of the hill have?

a)

gravitational potential

b)

chemical potential

c)

kinetic

d)

thermal

32.

What is the equation for kinetic energy?

a)

mv

b)

1/2 mv^2

c)

mgh

d)

Ft

33.

If the 0.3 kg marble was moving at 6 m/s at the bottom of the ramp, how much kinetic energy did the marble have?

a)

5.4 J

b)

1.8 J

c)

3 J

d)

6 J

34.

Calculate the potential energy of a car with a mass of 2,500 kg that is on a hill 100 meters above sea level.

a)

250,000 J

b)

2,450,000 J

c)

2,451,663 J

d)

248 J

35.

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?

a)

8.5 J

b)

45 J

c)

7.5 J

d)

22.5 J

36.

Ty lifts a set of 1250kg weights a vertical distance of 2m in a weight lifting contest. What Potential Energy do the weights now possess?

a)

12,789 Joules

b)

24,500 Joules

c)

4,500 Joules

37.

How much potential energy does the ball have at position A?

a)

150 kJ

b)

750 kJ

c)

15 kJ

d)

7.5 kJ

38.

What point represents where the marble will be moving the fastest?

a)

A

b)

B

c)

C

d)

D

e)

E

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