Energy: Exploring Different Forms and Uses

Question 1

How is sound created and how does it move?

Accepted Answer

When something vibrates, like a drum or a guitar string, it makes the air around it vibrate, creating sound waves.

Answer

Sound is made when objects rub together, like when you rub your hands together.

Answer

Sound is made when you speak into a microphone.

Answer

Sound is made when you turn on a radio or TV.

Question 2

How does energy change from the sun to the numbers on a solar-powered calculator screen?

Accepted Answer

Sun's energy → Light energy → Electrical energy → Numbers on screen

Answer

Sun's energy → Heat energy → Electrical energy → Numbers on screen

Answer

Sun's energy → Chemical energy → Electrical energy → Numbers on screen

Question 3

Which of these energy sources can be replaced naturally?

Accepted Answer

(A) Solar energy

Accepted Answer

(C) Wind energy

Accepted Answer

(D) Geothermal energy

Answer

(B) Fossil fuels

Question 4

When you turn on a flashlight, what happens to the energy stored in the battery?

Accepted Answer

The energy turns into light inside the flashlight.

Answer

The energy disappears.

Answer

The energy turns into heat in the flashlight.

Answer

The energy gets used up and stored in the flashlight.

Question 5

Where does the energy in our food originally come from?

Accepted Answer

The sun

Answer

The soil

Answer

The wind

Answer

The ocean

Question 6

When you put a cold spoon into a hot cup of tea, what happens to the temperature of the spoon and the tea?

Accepted Answer

The spoon gets hotter, and the tea gets colder.

Answer

The spoon and the tea stay the same temperature.

Answer

The spoon melts because the tea is too hot.

Answer

The tea freezes because the spoon is too cold.

Question 7

When you push a ball, what happens to its energy?

Accepted Answer

It gains energy.

Answer

It loses energy.

Answer

Its energy stays the same.

Question 8

In a forest, where does most of the energy come from?

Accepted Answer

The sun

Answer

The wind

Answer

The soil

Answer

The animals

Question 9

When you rub your hands together quickly, what kind of energy is created?

Accepted Answer

Heat energy

Answer

Light energy

Answer

Electrical energy

Answer

No energy

Question 10

Which of these actions uses mechanical energy?

Accepted Answer

Kicking a soccer ball

Answer

Heating a pot of water

Answer

Turning on a light

Answer

Listening to music on headphones

Question 11

When sunlight hits a dark-colored object, what happens to the light?

Accepted Answer

It is absorbed by the object and turns into heat.

Answer

It bounces off the object.

Answer

It changes the color of the object.

Answer

It makes the object lighter.

Question 12

When we plug in and turn on a refrigerator, what happens to the electrical energy that comes from the wall outlet to keep our food cold?

Accepted Answer

The electrical energy is changed into heat energy, which helps remove heat from inside the refrigerator.

Answer

The electrical energy turns into cold air.

Answer

The electrical energy powers a fan that blows cold air.

Answer

The electrical energy creates a chemical reaction that makes the refrigerator cold.

Question 13

How do we get electricity from the sun?

Accepted Answer

Use a solar panel to change sunlight into electricity.

Answer

Use sunlight to heat water and turn it into steam.

Answer

Use sunlight to spin a windmill.

Question 14

Which object has the most energy and can do the most work?

Accepted Answer

A ball rolling down a hill

Answer

A warm cup of tea

Answer

A flashlight

Question 15

What kind of energy can make things move?

Accepted Answer

Motion energy

Answer

Light energy

Answer

Heat energy

Answer

Sound energy

Question 16

What happens when you flip a light switch?

Accepted Answer

Electrical energy is converted to light energy.

Answer

Light energy is converted to electrical energy.

Answer

Heat energy is converted to light energy.

Answer

Sound energy is converted to light energy.

Question 17

Which of these is the best conductor of heat?

Accepted Answer

Metal

Answer

Wood

Answer

Rubber

Answer

Glass

Question 18

What energy do you use when you hit a drum?

Accepted Answer

Sound energy

Answer

Light energy

Answer

Electrical energy

Answer

Kinetic energy

Question 19

What kind of energy is used when you turn on a fan?

Accepted Answer

Electrical energy

Answer

Mechanical energy

Answer

Solar energy

Answer

Chemical energy

Question 20

Which of these powers a solar panel?

Accepted Answer

Sunlight

Answer

Coal

Answer

Natural gas

Answer

Oil

Question 21

Where do plants get their energy from?

Accepted Answer

Sunlight

Answer

Electricity

Answer

Water

Answer

Wind

Question 22

Which activity uses the least energy?

Accepted Answer

Sleeping

Answer

Watching TV

Answer

Riding a bike

Answer

Playing outside

Question 23

What makes things feel warm?

Accepted Answer

Heat

Answer

Light

Answer

Sound

Answer

Wind

Question 24

What can make sound energy?

Accepted Answer

A vibrating guitar string

Answer

A flashing light

Answer

A hot stove

Answer

A flowing river

Question 25

When energy changes from one form to another, what is it called?

Accepted Answer

Transformation

Answer

Transfer

Answer

Creation

Answer

Destruction

Question 26

What can use light energy?

Accepted Answer

A solar panel

Answer

A wind turbine

Answer

A water wheel

Answer

A battery

Question 27

Which is NOT a renewable energy source?

Accepted Answer

Coal

Answer

Sunlight

Answer

Wind

Answer

Water

Question 28

What is the difference between potential energy and kinetic energy?

Accepted Answer

Potential energy is like when you hold a ball above your head, and kinetic energy is when you throw the ball.

Answer

Kinetic energy is like when you hold a ball above your head, and potential energy is when you throw the ball.

Answer

They are the same thing.

Answer

Potential energy is when you throw the ball, and kinetic energy is when you hold the ball above your head.

Question 29

What changes electricity into light?

Accepted Answer

A light bulb

Answer

A fan

Answer

A refrigerator

Answer

A microwave

Question 30

Which of these is a renewable energy source?

Accepted Answer

Wind

Answer

Natural gas

Answer

Oil

Answer

Coal

Question 31

Which of these is a form of energy that can make things warm?

Accepted Answer

Heat

Answer

Water

Answer

Air

Answer

Money

Question 32

When energy moves from one thing to another, what happens?

Accepted Answer

One thing loses energy and the other gains energy.

Answer

The energy disappears.

Answer

Nothing happens.

Answer

The first object changes color.

Question 33

Which of these can make sound energy?

Accepted Answer

A guitar string that shakes

Answer

A river flowing

Answer

A light that flashes

Answer

A ball that bounces

Question 34

What happens when you turn on a light?

Accepted Answer

Electricity flows through a wire to a light bulb.

Answer

The light bulb magically lights up.

Answer

The switch changes the light bulb's color.

Answer

Nothing happens.

Question 35

What happens when you burn a piece of wood?

Accepted Answer

Chemical energy turns into heat and light energy.

Answer

Heat and light energy turn into chemical energy.

Answer

Nothing happens.

Answer

The wood turns into water.

Question 36

Which of these is a source of energy that we won't run out of?

Accepted Answer

Solar energy

Answer

Fossil fuels

Answer

Nuclear energy

Answer

Coal

Question 37

What is the type of energy that can make things feel warm?

Accepted Answer

Heat energy

Answer

Light energy

Answer

Sound energy

Answer

Motion energy

Question 38

When you flip a light switch, what is happening?

Accepted Answer

Electricity is turning into light.

Answer

Heat is changing into light.

Answer

Sound is turning into light.

Answer

No energy is changing.

Question 39

Which of these things is NOT a good way to save energy?

Accepted Answer

Leaving the refrigerator door open

Answer

Turning off lights when you leave a room

Answer

Unplugging electronics when you're not using them

Answer

Taking shorter showers

Question 40

What is the name of the energy that comes from our sun?

Accepted Answer

Solar energy

Answer

Wind energy

Answer

Water energy

Answer

Heat energy

Question 41

Which of these materials can you see through?

Accepted Answer

Plastic wrap

Answer

Metal

Answer

Wood

Answer

Cardboard

Question 42

What happens when you clap your hands together?

Accepted Answer

Sound energy is made

Answer

Heat energy is made

Answer

Light energy is made

Answer

No energy is made

Question 43

Which of these changes electricity into sound?

Accepted Answer

Speaker

Answer

Light bulb

Answer

Battery

Answer

Fan

Question 44

Where do plants get most of their energy?

Accepted Answer

Sunlight

Answer

Water

Answer

Air

Answer

Soil

Question 45

What material can transfer heat?

Accepted Answer

Metal

Answer

Wood

Answer

Rubber

Answer

Plastic

Question 46

When you mix warm and cold water, what happens?

Accepted Answer

Both the warm and cold water become the same temperature.

Answer

The warm water gets colder.

Answer

The cold water gets warmer.

Answer

Nothing happens.

Question 47

Which of these is NOT a form of energy?

Accepted Answer

Water

Answer

Light

Answer

Heat

Answer

Sound

Question 48

What type of energy is created when something makes a noise?

Accepted Answer

Sound energy

Answer

Light energy

Answer

Heat energy

Answer

Motion energy

Question 49

What happens to the energy of a moving object when it stops?

Accepted Answer

It is turned into heat energy.

Answer

It is destroyed.

Answer

It is stored as potential energy.

Answer

It disappears.

Question 50

What kind of energy does a battery give us?

Accepted Answer

Electrical energy

Answer

Heat energy

Answer

Light energy

Answer

Sound energy

Question 51

What happens when you turn on a light switch?

Accepted Answer

Electrical energy changes into light energy.

Answer

Heat energy changes into light energy.

Answer

Light energy changes into electrical energy.

Answer

Sound energy changes into light energy.

Question 52

Which of these objects can make its own light?

Accepted Answer

A flashlight

Answer

A toy car

Answer

A piece of paper

Answer

A rock

Question 53

What happens when you rub your hands together quickly until they feel warm?

Accepted Answer

Heat energy is made.

Answer

Sound energy is made.

Answer

Light energy is made.

Answer

No energy is made.

Question 54

Which of these activities involves the sharing of sound energy?

Accepted Answer

Playing the piano

Answer

Turning on a light bulb

Answer

Heating up soup on the stove

Answer

Riding a bike

Question 55

What is the most important source of energy for plants?

Accepted Answer

Sunlight

Answer

Water

Answer

Soil

Answer

Air

Question 56

Which of these devices changes electrical energy into light energy?

Accepted Answer

A light bulb

Answer

A battery

Answer

A solar panel

Answer

A magnet

Question 57

What happens to the warmth of an object when it gains energy?

Accepted Answer

It gets warmer.

Answer

It gets colder.

Answer

It stays the same.

Answer

It gets wet.

Question 58

Which of these materials can transfer heat well?

Accepted Answer

Metal

Answer

Wood

Answer

Cloth

Answer

Plastic

Question 59

What do we measure energy in?

Accepted Answer

Joules

Answer

Degrees Celsius

Answer

Meters

Answer

Grams

Question 60

Which of these is an example of energy that is stored?

Accepted Answer

A book sitting on a table

Answer

A ball rolling down a hill

Answer

A burning fire

Answer

A flowing river

Question 61

What happens when you flip a light switch?

Accepted Answer

Electrical energy is changed into light energy.

Answer

Light energy is changed into electrical energy.

Answer

Heat energy is changed into electrical energy.

Answer

Sound energy is changed into electrical energy.

Question 62

Which of these is not a form of energy?

Accepted Answer

Water

Answer

Light

Answer

Heat

Answer

Sound

Question 63

What happens when sound waves hit a wall and bounce back?

Accepted Answer

Reflect

Answer

Pass through

Answer

Get absorbed

Answer

Change into a different type of wave

Question 64

How do our brains use our ears to help us know where a sound is coming from?

Accepted Answer

Our brains use the tiny differences in sound that reach our two ears to figure out where a sound is coming from.

Answer

Our ears move to point in the direction of the sound.

Answer

Our ears have different shapes that help us to hear sounds from different directions.

Answer

Our ears have special muscles that help us to focus on sounds from a specific direction.