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Energy Unit Review

Total questions: 35

Worksheet time: 19mins

Name
Class
Date
1.

What is Energy?

a)

The ability to do anything

b)

The ability to cause change

c)

The investigation of nature

d)

A fact of life

2.

What is an example of kinetic energy?

a)

A bird sitting in a tree

b)

A bouncy ball on the table

c)

A car driving on the highway

d)

A book on shelf

3.

What is an example of potential energy?

a)

A bowling ball rolling down a lane

b)

A car parked in a lot

c)

An apple falling from a tree

d)

Sunlight heating up the atmosphere

4.

What is an example of sound energy?

a)

A thermometer heating up

b)

Solar panels generating electricity

c)

A guitar string being plucked

d)

A machine in an assembly line

5.

What transformation occurs in a toaster?

a)

Electrical to radiant

b)

Electrical to thermal

c)

Thermal to mechanical

d)

Solar to electrical

6.

What type of energy transformation occurs when a piece of wood burns?

a)

Electrical energy is released as radiant energy

b)

Stored chemical energy is released as thermal energy

c)

Mechanical energy is stored as chemical energy

d)

No transformation occurs

7.
__________ energy is the energy due to an object's position or condition
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
8.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
9.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
c)
both
d)
neither
10.
Which point has the most potential energy?
a)
D
b)
F
c)
B
d)
A
11.
Which point has the greatest kinetic energy?
a)
W
b)
X
c)
Y
d)
Z
12.
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
13.
The law of conservation of energy means ________________________
a)
Energy CAN be created and destroyed or transformed
b)
Energy can be used up or transformed
c)
Energy CANNOT be created or destroyed, only transformed
d)
Energy cannot be transformed
14.

According to the diagram, what can happen when solar energy hits clouds in Earth's atmosphere?

a)

it can be reflected or absorbed

b)

it can only be absorbed

c)

it can only be reflected

d)

it is neither reflected nor absorbed

15.

True or False:

An unbalanced energy budget can increase or decrease global temperatures and disrupt the balance of energy in Earth's system.

a)

True

b)

False

16.

What amount of incoming solar energy is absorbed by Earth's surface?

a)

23%

b)

51%

c)

49%

d)

15%

17.

If greenhouse gases increase and build up in our atmosphere, what happens?

a)

They trap more heat and global temperatures rise.

b)

They trap more heat and global temperatures decrease.

c)

They trap less heat and global temperatures rise.

d)

They trap less heat and global temperatures decrease.

18.

When you place a spoon in hot soup, the spoon becomes warm. This is due to what type of energy distribution?

a)

radiation

b)

convection

c)

conduction

d)

circulation

19.

The sun heats up the inside of a car. This is what type of energy distribution?

a)

conduction

b)

radiation

c)

convection

d)

collision

20.

You are at the beach and enjoying the feel of the sun on your face. This is what type of energy distribution?

a)

radiation

b)

conduction

c)

conversion

d)

convection

21.

The way in which heat is trapped close to the surface of Earth by gases in our atmosphere is known as

a)

The Trapping Effect

b)

The Gaseous Effect

c)

The Greenhouse Effect

d)

The Earth Energy Budget Effect

22.

M&Ms are a great candy because the chocolate doesn't melt in your hands! When chocolate melts in your hands, that is a form of what type of energy distribution?

a)

radiation

b)

conduction

c)

convection

d)

meltology

23.

True or False: the Sun provides all the energy on Earth?

a)

True

b)

False

24.

You are in the top bunk of a bunk bed and you want to turn the air conditioner on while your friend on the bottom bunk is fine is caused by

a)

Convection

b)

Conduction

c)

Radiation

25.

A fireman feels a door and it is hot. Why does his hand feel hot?

a)

Convection

b)

Conduction

c)

Radiation

26.

Warm air over the beach rises while cooler dense air from the ocean rushes in due to

a)

Convection

b)

Conduction

c)

Radiation

27.

A house burns down. On the house across the street, all of the vinyl siding is twisted and warped by the heat. The heat was transferred across the street by

a)

Convection

b)

Conduction

c)

Radiation

28.
In heat transfer, heat always flows from the _______________ substance to the _______________ substance.
a)
Hotter to colder
b)
Colder to hotter
c)
Hotter to hotter
d)
Colder to colder
29.
The type of heat transfer that happens through direct contact of molecules or particles with each other is ___________________.
a)
Convection
b)
Conduction
c)
Radiation
d)
insulation.
30.
___________________ is the type of heat transfer that occurs in fluids, such as warm air rising and cold air sinking; creating wind.
a)
Convection
b)
Conduction
c)
Radiation
d)
insulation.
31.

Which is the best example of conduction?

a)

boiling a pot of water

b)

feeling heat from a fireplace

c)

a hot air balloon rising and falling

d)

touching a hot handle and getting burned

32.

What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?

a)

mechanical energy to chemical energy

b)

thermal energy to mechanical energy

c)

chemical energy to mechanical energy

d)

mechanical energy to thermal energy

33.
A hairdryer converts -- 
a)
electrical energy into chemical
b)
electrical energy into thermal
c)
chemical energy into mechanical
d)
thermal energy into mechanical
34.
Which items would have this energy transformation: electrical energy -> thermal energy and light energy?
a)
toaster
b)
candle burning
c)
windmill turning
d)
Iron for your clothes
35.

What energy transformation occurs as howler monkeys loudly call to each other in the forest?

a)

Chemical --> Mechanical --> Sound

b)

Chemical --> Sound --> Thermal

c)

Sound --> Chemical --> Radiant

d)

Mechanical --> Chemical --> Sound