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Energy review

Total questions: 29

Worksheet time: 48mins

Name
Class
Date
1.
Energy can be classified into these two categories.
a)
Potential and kinetic
b)
Gravitational and elastic
c)
Light and sound
d)
Kinetic and movement
2.
Which is an example of potential energy?
a)
A car sitting at the top of a hill
b)
A kite flying in the air
c)
A fox chasing a mouse
d)
A bowling ball rolling
3.
What type of energy is stored inside a battery?
a)
elastic potential energy
b)
gravitational potential energy
c)
chemical potential energy
d)
kinetic energy
4.
Which type of energy is increased when an object is raised above the ground? 
a)
Gravitational potential
b)
Elastic potential
c)
Kinetic
d)
Heat
5.
What type of energy is the girl storing in the bow?
a)
Light Energy
b)
Elastic Potential Energy
c)
Chemical Potential Energy
d)
Thermal Energy
6.
What type of energy does this roller coaster car have?
a)
Mostly potential
b)
Mostly kinetic
c)
No energy
d)
Solar energy
7.
An energy transformation is when...
a)
energy turns into a robot
b)
energy changes from one form to another
c)
energy is created
d)
energy is used up
8.
A battery converts what type of energy to another?
a)
sound to kinetic
b)
light to heat
c)
mechanical to electrical
d)
chemical to electrical
9.
The purpose of the panels is to change solar energy into ____________.
a)
light energy
b)
electrical energy
c)
chemical energy
d)
mechanical energy
10.
Electrical Energy is transferred to _____ Energy.
a)
Thermal
b)
Solar
c)
Electrical
d)
None
11.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
same
12.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
13.
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 
14.

According to which law of energy, energy can't be created or destroyed?

a)

Newton's Third Law of Motion

b)

The Law of Tacos

c)

Law of Conservation of Momentum

d)

Law of Conservation of Energy

15.

For the picture of the roller coaster above. Which letter represents the point where the car has the most kinetic energy?

a)

W

b)

X

c)

Y

d)

Z

16.

What energy conversion is taking place in this picture?

a)

solar energy to thermal energy

b)

thermal energy to chemical energy

c)

chemical energy to thermal and radiant (light) energy

17.

The rock in the picture is pushed over the edge and it begins to fall. Which type of energy conversion is taking place?

a)

thermal to gravitational

b)

sound to elastic

c)

gravitational to kinetic

d)

kinetic to gravitational

18.

A drawn bow possesses mechanical energy in the form of _______________. After the arrow is released, the energy is transformed into _________________.

a)

gravitational energy; elastic energy

b)

elastic energy; kinetic energy

c)

gravitational energy; kinetic energy

19.

What happens to the energy when you kick a soccer ball?

a)

energy is created

b)

energy is destroyed

c)

energy is transferred to the ball

d)

energy is transferred to your foot

20.

What type of energy conversion occurs when the rubber band it released?

a)

elastic to kinetic

b)

gravitational to elastic

c)

elastic to chemical

d)

elastic to thermal

21.

You throw a ball into the air as shown in the diagram. At what point does the ball have the most gravitational potential energy?

a)

W

b)

X

c)

Y

d)

Z

22.

Which of the following is the correct equation for calculating an object's gravitational potential energy?

a)

PE = mgh

b)

PE = mg / h

c)

PE = mg + h

d)

PE = gh

23.
A 0.40 kilogram bird is flying at a constant speed of 8.0 m/s. What is the bird's kinetic energy ?
a)
3.2 J
b)
4.2 J
c)
2.0 J
d)
12.8 J
24.
A 2600 kilogram car is moving at a speed of 25 m/s. How much kinetic energy does the car have?
a)
427,500 J
b)
237,500 J
c)
437,500 J
d)
537,500 J
25.
2. The diagram to the right represents a diver’s motion from the top of a high diving board into a pool of water. At what point does the diver have the greatest kinetic energy and the least potential energy?
a)
1
b)
2
c)
3
d)
4
26.
A 60.0 kg person walks from the ground to the roof of a 74.8 m tall building. How much gravitational potential energy does she have at the top of the building?
a)
43982.4 J
b)
63982.3 J
c)
43962.4 J
d)
83942.4 J
27.

Kinetic energy depends on the ________ and ________ of the object.

a)

Height (position)

b)

Mass

c)

Velocity

d)

Friction

28.
A 0.40 kilogram bird is flying at a constant speed of 8.0 m/s. What is the bird's kinetic energy ?
a)
3.2 J
b)
4.2 J
c)
2.0 J
d)
12.8 J
29.

Calculate the potential energy of a rock with a mass of 55 kg while sitting on a hill that is 35 m high

a)

18,865 J

b)

1,925 J

c)

9,625 J

d)

336,875 J

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