Quiz about Energy and Electricity

Question 1

An object has a type of energy due to the movement of electrons. Which type of energy is it?

Accepted Answer

electrical

Answer

chemical

Answer

thermal

Answer

mechanical

Question 2

The girl shown below is using an electrical appliance that has a motor.

Which energy transformation is she using?

Accepted Answer

electrical energy into heat energy and energy of motion

Answer

electrical energy into sound energy and chemical energy

Answer

sound energy into electrical energy and energy of motion

Answer

energy of motion into electrical energy and sound energy

Question 3

Sidney wants to make an electric circuit. She gathers the items shown below.

What additional item does Sidney need to make a complete circuit?

Accepted Answer

a battery

Answer

a switch

Answer

an insulator

Answer

a conductor

Question 4

What kind of energy does a thermometer measure?

Accepted Answer

thermal energy

Answer

chemical energy

Answer

electrical energy

Answer

light energy

Question 5

Plants need light energy to grow. Which would be the best way to show that plants need light?

Accepted Answer

Grow plants with light and plants without light and compare how they grow.

Answer

Grow a plant in the dark and observe its growth.

Answer

Put plants under different kinds of light and compare how they grow.

Answer

Find plants that have grown in sunlight and measure the height of each one.

Question 6

What form of energy cooks food in a solar cooker?

Accepted Answer

light energy

Answer

chemical energy

Answer

electrical energy

Answer

mechanical energy

Question 7

Why do two socks sometimes stick together in a dryer?

Accepted Answer

Electrons move from one sock to another.

Answer

Both socks have a positive charge.

Answer

Both socks have a negative charge.

Answer

Protons move from one sock to another.

Question 8

A material that allows an electric current to flow through it is an electrical conductor. A material through which an electric current cannot flow easily is called an insulator. Which claim best describes the difference between an insulator and a conductor?

Accepted Answer

An insulator does not have electrons that are free to move, and a conductor does.

Answer

An insulator has a static charge, and a conductor does not.

Answer

A conductor contains more electrons than an insulator.

Answer

A conductor is a metal, and an insulator is any material that is not a metal.

Question 9

An electric clock in a classroom will not run if it is not plugged into an electric outlet. What does the clock get from the electric current from the outlet?

Accepted Answer

energy

Answer

batteries

Answer

chemicals

Answer

time of day

Question 10

Which energy transformation occurs when a fan is plugged into a wall?

Accepted Answer

electrical energy into energy of motion

Answer

heat energy into motion energy

Answer

electrical energy into sound energy

Answer

energy of motion into sound energy

Question 11

You use energy transformations every day. Which of these is a way that you would use the transformation of electrical energy to motion energy?

Accepted Answer

taking an elevator to the top of a tall building

Answer

watching your favorite show on television

Answer

listening to your MP3 player while you walk to school

Answer

turning on the lamp on your desk so you can see to do your homework

Question 12

Darrell made toast for breakfast by putting a slice of bread into the toaster and turning it on. Which energy transformation did he use to make a piece of toast?

Accepted Answer

electrical energy into heat energy

Answer

heat energy into electrical energy

Answer

light energy into electrical energy

Answer

electrical energy into light energy

Question 13

The picture below shows a book sitting on a shelf.

Which type of energy does the book have because it is on the shelf?

Accepted Answer

potential

Answer

chemical

Answer

electrical

Answer

kinetic

Question 14

The diagram below shows a simple electromagnet.

What effect does decreasing the number of coils around the nail have on the strength of the electromagnet?

Accepted Answer

It becomes weaker.

Answer

It becomes stronger.

Answer

It remains the same strength.

Answer

It depends how many coils are removed.

Question 15

The picture below shows a spring toy. If you push down the toy and then release it, the toy would pop up through the air.

Which types of energy does the spring toy have as it flies through the air?

Accepted Answer

kinetic and potential

Answer

electrical and thermal

Answer

potential and electrical

Answer

thermal and kinetic

Question 16

Clayton tries to build an electric circuit using a battery, a light bulb, a paper clip, and copper wire. The diagram below shows what he builds.

Which claim best explains why the circuit would not conduct electricity

Accepted Answer

The circuit is not a complete loop.

Answer

The circuit lacks a power source.

Answer

The light bulb uses the electric current.

Answer

The paper clip stops the electric current.

Question 17

The electric circuit below consists of a battery, a switch, and three light bulbs.

What will happen if the switch is closed and Bulb A is removed?

Accepted Answer

Bulbs B and C will go out.

Answer

Bulbs B and C will remain lit.

Answer

Bulb B will remain lit, and Bulb C will go out.

Answer

Bulb C will remain lit, and Bulb B will go out.

Question 18

In the electric circuit below, light bulbs are placed at A, B, and C. When the switch is closed, all three light bulbs are lit.

What happens to Bulbs A and C if Bulb B burns out?

Accepted Answer

Both Bulbs A and C will stay lit.

Answer

Both Bulbs A and C will go out.

Answer

Bulb A will go out, but Bulb C will stay lit.

Answer

Bulb C will go out, but Bulb A will stay lit.

Question 19

In a light bulb, such as the one shown below, the filament glows brightly when the switch is turned on.

What energy transformation occurs at the filament of a light bulb?

Accepted Answer

electrical energy into thermal energy and light energy

Answer

chemical energy into light energy

Answer

light energy into electrical energy

Answer

potential energy into thermal energy and light energy

Question 20

Some materials conduct electricity, but others do not. Which of these materials is an electrical conductor?

Accepted Answer

nail

Answer

plastic ruler

Answer

rubber band

Answer

toothpick

Question 21

Many devices in your home convert electrical energy into other forms of energy. Which of these devices converts electrical energy into motion?

Accepted Answer

power saw

Answer

light bulb

Answer

door buzzer

Answer

water faucet

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