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Unit 3: Energy Review

Total questions: 30

Worksheet time: 15mins

Name
Class
Date
1.
Look at the picture.  Why won't the light bulb light up?
a)
The wires from the light bulb are not connected to the battery
b)
The switch is not closed to form a complete circuit 
c)
The wires from the light bulb are not connected to the switch 
d)
The wires from the battery are not connected to the switch 
2.
Look at the picture.  What causes the light bulb not to light up?
a)
The wires from the second light bulb are not connected to the battery
b)
The wires are not connected between the light bulbs 
c)
The wires are not connected to both sides of the first light bulb
d)
The wires are too long to complete the circuit 
3.
Pick the correct sentence.
a)
This circuit will work because it is a closed circuit.
b)
Energy will freely flow in this circuit.
c)
This circuit will not work because there is no energy source.
d)
This circuit will not work because there is no switch.
4.
Magnetism is a type of ____________
a)
force
b)
book
c)
plant
d)
animal
5.
When two magnets attract, they ______________
a)
push apart
b)
change color
c)
get colder
d)
pull together
6.
When two magnets repel, they ________________
a)
change color
b)
pull together
c)
push apart
d)
get colder
7.
The space around a magnet where the force of a magnet can attract best is called__________
a)
magnetism
b)
bar magnet
c)
horseshoe magnet
d)
magnetic field
8.
The further two magnets are apart, the __________________ the force of magnetism.
a)
stronger
b)
weaker
c)
same
9.

A player catches a moving ball. What happens to some of the ball's energy when it hits the player's mitt?

a)

It changes to light.

b)

It changes to electricity.

c)

It changes to sound.

d)

It is destroyed.

10.

Addy spilled some sugar on the kitchen table. She pounded her fist on the table, and the grains of sugar moved. Why did the sugar move?

a)

Light above the table transferred energy to the sugar

b)

Vibrations made by Addy's pounding transferred energy to the sugar

c)

Air above the table transferred energy to the sugar

d)

Heat from Addy's fist transferred energy to the sugar

11.

Zoe picks up a book she left by a sunny window. She notices the book is warm to the touch. What can Zoe conclude from her observation?

a)

heated air produces light

b)

light travels faster than sound waves

c)

light can transfer energy to objects and heat them

d)

heat travels faster than light

12.

When you add hot soup to a cold bowl, ______ energy transfers from the soup to the bowl.

a)

motion energy

b)

light energy

c)

sound energy

d)

heat energy

13.

Which ramp will give the ball more energy of motion?

a)

Lower ramp

b)

Higher ramp

c)

Neither ramp

d)

Both ramps

14.

What is an insulator?

a)

A good friend

b)

An object that slows or stops the flow of heat energy.

c)

An object that allows heat energy to flow easily.

d)

An object that stops an object from moving.

15.

What is a conductor?

a)

An object that slows or stops the flow of heat energy.

b)

An object that plays music.

c)

An object that allows heat energy to flow easily.

d)

An object that is on fire.

16.
Which energy conversion takes place when a toaster is switched on?
a)
chemical to sonic
b)
electrical to sonic
c)
chemical to thermal
d)
electrical to thermal
17.
Angela has a toy made out of a coil of wire.  She places the toy at the top of some stairs.  The toy can travel down each step, end-over-end.  Which type of energy does the toy have when it is placed at the top of the stairs?
a)
potential
b)
kinetic
c)
magenetic
d)
electrical
18.

chemical energy in food is transformed into __________energy in our bodies.

a)

nuclear

b)

solar

c)

mechanical

d)

electrical

19.

Most of the energy that we use on Earth today originally came from _________.

a)

the oceans

b)

the atmosphere

c)

power plants

d)

the sun

20.

A solar calculator has to have light in order to work. What does the radiant light energy transform into?

a)

Radiant

b)

Mechanical

c)

Potential

d)

Chemical because of the battery.

21.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
22.

What is energy?

a)

The ability to do work and cause change and move an object some distance.

b)

The push and pull exerted on an object.

c)

The relationship between matter and substances..

d)

The feeling you get after drinking a Monster or Red Bull

23.

You bend your arm at the elbow and pick up a candy bar. This is an example of what?

a)

gravitational potential energy

b)

mechanical kinetic energy

c)

radiant energy

d)

cosmic energy

24.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
25.

What happens when two objects collide?

a)

Energy is changed into force.

b)

Energy is transferred from one object to another.

c)

Energy is created and the objects move faster.

26.

Where does a ball have the most potential energy?

a)

On the top of a hill.

b)

In the middle of the hill.

c)

At the bottom of the hill.

27.

The moment the bat touches the ball, energy from the moving bat is transferred to what?

a)

The baseball player

b)

The ball

c)

The bat

d)

The field

28.

If you rub your hands together, why do they get warm?

a)

Some kinetic energy is converted to sound energy

b)

Some of the kinetic energy is converted to heat energy

c)

Some of the kinetic energy is converted to electrical energy

d)

Some of the kinetic energy is converted to light energy

29.

The conversion (change) of energy from one form of energy to another form of energy.

a)

Energy Transfer

b)

Energy Transformation

c)

Creation of Energy

d)

Energy being destroyed

30.

The movement of energy from one place to another. The type of energy does not change.

a)

Energy Transfer

b)

Energy being created

c)

Energy Transformation

d)

Energy being destroyed