Electric and Magnetic Fields

Which of these is an example of electric energy?

• A car driving down the road

  
  

• A flashlight shining in the dark

• A ball rolling on the ground

• A doorbell ringing

  
  

How does a refrigerator use electric energy?

• By using electricity to light up the room

•  By keeping food cold using electric-powered cooling

• By creating heat using electric coils

  
  

• By spinning its wheels

  
  

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Which of the following uses magnetic energy?

• A magnet sticking to a refrigerator

  
  

• A hair dryer blowing hot air

• A lightbulb turning on

• A basketball being thrown

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Why does a compass always point north?

• It is powered by a battery

• It is attracted to Earth’s magnetic field.

• It uses wind to turn.

  
  

• It moves because of sunlight.

Which household item uses both electric and magnetic energy?

•  A blender

  
  

• A computer

  
  

• A washing machine

  
  

• An electric fan

  
  

What happens when you pass electric current through a wire wrapped around a nail?

• The nail starts to melt

• he nail turns into a magnet

• The nail glows.

• The nail breaks

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What is an electromagnet used for in daily life?

• To power a car’s headlights

  
  

• To open and close the doors of a train

• To keep water cold in a water bottle

• To cook food on a stove

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Which of these devices relies on electricity to work?

• A bicycle

• A television

• A book

• A backpack

Why do electric wires have plastic coating around them?

• To make them stronger

• To keep electricity from flowing into unwanted places

• To attract more electricity

• To make them look colorful
  

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What kind of energy is used when a doorbell rings?

• Electric energy

  
  

• Magnetic energy

• Both electric and magnetic energy

• Neither electric nor magnetic energy