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Energy Transfers + Work Done

Total questions: 38

Worksheet time: 38mins

Name
Class
Date
1.

A car moves faster? Which energy store increases?

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Thermal Energy

d)

Kinetic Energy

2.

The energy in which store decreases as a candle burns? 

a)

Chemical energy store

b)

Kinetic energy store

c)

Nuclear energy store

3.

An elastic band is stretched. Which energy store increases in energy?

a)

Gravitational Potential

b)

Chemical

c)

Elastic

d)

Kinetic

4.

Energy is transferred _______________ due to charge flowing around a circuit. 

a)

Electrically

b)

Kinetic

c)

Mechanically

d)

By radiation

5.

________ is when energy is transferred between areas that have different temperatures. 

a)

By radiation

b)

By heating

c)

Mechanically

d)

Nuclear

6.

When you eat fruits and vegetables, the energy is stored as ...

a)

a. thermal energy

b)

b. food energy

c)

c. electrical energy

d)

d. chemical energy

7.
a.  Energy stored in the nucleus of an atom.
a)
A. Sound Energy
b)
B. Potential Energy
c)
C. Nuclear Energy
d)
D. Thermal energy
8.

Food, fuels and batteries have energy in this energy store

a)

Chemical

b)

Thermal

c)

Gravitational Potential

d)

Elastic

9.

Shooting an arrow from a bow converts ____ into kinetic energy.

a)

Elastic potential energy

b)

Chemical energy

c)

Gravitational potential energy

d)

Thermal energy

10.

A ____ converts chemical energy into kinetic energy?

a)
b)
c)
d)
11.
A girl turned the light off and went to bed.  She remembered she had accidentally left her glass of ice water on the counter.  When she got up the next morning, the ice had melted. What form of energy caused the ice to melt?
a)
Sound energy
b)
Light energy
c)
Thermal energy
d)
Mechanical energy
12.

Two magnets close together have energy in this energy store.

a)

Chemical

b)

Elastic

c)

Magnetic

d)

Gravitational Potential

13.
When is the potential energy the greatest in a roller coaster?
a)
a. at the bottom of the first hill
b)
b. at the top of the first hill
c)
c. at the top of the second hill
d)
d. at the bottom of the second hill
14.
After an energy conversion, you end up with the same total amount of energy as the original amount of potential energy. Which of the following laws explains this rule?
a)
a. law of energy changes
b)
b. law of conservation of energy
c)
c. law of power and energy
d)
d. law of potential energy
15.
Where is the potential energy the greatest?
a)
A
b)
B
c)
C
d)
D
16.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
17.
Can energy be created or destroyed?
a)
Yes
b)
No
18.

As an object falls, what happens to its kinetic energy?

a)

Increases

b)

Decreases

c)

Stays the same.

d)

Need more information

19.

What is the unit of energy

a)

N

b)

kg

c)

J

d)

W

20.

Identify the energy transfer

a)

electrical to chemical to light

b)

kinetic to potential

c)

chemical to electrical to light

d)

light to sound

21.
Which form of energy is mostly produced in this conversion?
a)
Electrical
b)
Mechanical
c)
Thermal
d)
Sound
22.

Identify the energy transfer

a)

light to electrical to chemical

b)

chemical to electrical to light

c)

electrical to chemical to light

d)

chemical to electrical to solar

23.

Identify the energy transfer

a)

chemical to light

b)

thermal to electrical

c)

chemical to heat

d)

electrical to thermal

24.

List the energy transformations of this object.

a)

Electrical → Mechanical/ Radiant Energy

b)

Electrical → Mechanical / Sound / Thermal Energy

c)

Mechanical → Chemical / Thermal energy

d)

Mechanical→ Electrical energy

25.
Which energy conversion is taking place when you put gasoline in a car?
a)
thermal -> electrical
b)
mechanical -> electrical
c)
chemical -> mechanical
d)
mechanical -> electromagnetic
26.

How much work is done on an object if the amount of force applied is 50 N and the object was displaced by 2 meters from its original position?

a)

100 J

b)

25 J

c)

100 W

d)

25 W

27.

what is the unit of work?

a)

Newton

b)

Joule

c)

Watt

d)

meter

28.

if you push a cart with a force of 60 N for 2 m... how much work have you done

a)

120 J

b)

30 J

c)

120 N

d)

30 N

29.

Two people shove on a wall with 100 N. The wall doesn’t move. How much work is done?

a)

100J

b)

100N

c)

0J

d)

0N

30.
Which of the following is the best example of work being done. 
a)
doing homework
b)
lifting a box
c)
pushing a stationary box
d)
holding a box
31.
Calculate work: A 100 Newton force is applied to move a 15 kg object a distance of 5 meters?
a)
20 Joules
b)
75 Joules
c)
500 Joules
d)
1500 J
32.
Force is a _____ or _______
a)
simple    complex
b)
push     pull
c)
up      down
d)
in      out
33.

It took 500 Newtons of force to push a car four meters. How much work was done?

a)

2000 J

b)

125 J

c)

0.008 J

d)

500 J

34.
1. A book weighing 1.0 newton is lifted 2 meters.  How much work was done?
a)
2 J
b)
0.5 J
35.
work transfers
a)
sweat
b)
energy
c)
velocity
d)
effort
36.
What is the formula for work?
a)
Force = work x distance
b)
Distance = force x work
c)
Work = force x distance
d)
Work = force x mass
37.
Which of the following IS NOT an example of work being done?
a)
Pushing a cart in a store
b)
Shooting a basketball
c)
A stand off in tug of war
d)
Running a mile
38.
Which of the following is an example of work being done?
a)
Teacher sitting in a chair
b)
Book resting on desk
c)
Keys hanging from a key chain
d)
A ball being rolled on the floor