Y4 - Energy

How many forms of energy are there?

• 6

• 7

• 8

• 9

What energy conversion takes place when a toaster is switched on?

• electrical energy to heat energy

• stored energy to light energy

• electrical energy to movement energy

• stored energy to electrical energy

What energy do batteries contain​?

• stored energy

• electrical energy

• heat energy

• light energy

What energy conversion takes place when a television is switched on?

• electrical energy to sound energy and light energy

• movement energy to electrical energy and sound energy

• stored energy to electronic energy and light energy

• electrical energy to sound energy and movement energy

What energy conversion takes place when you talk on a microphone?

• electrical energy to sound energy

• stored energy to sound energy

• sound energy to electrical energy

• electrical energy to heat energy

Which one is correct about energy?

• Energy can be destroyed.

• Energy can be changed to one form to another.

• Energy can be destroyed and reformed.

• Energy can be changed and destroyed at the same time.

Wind is a renewable resource that can generate energy. What type of energy does a wind turbine produced and stored batteries?

• chemical energy

• sound energy

• movement energy

• electrical energy

What is the source of energy for cars and aeroplanes?

• electricity

• fuel

• batteries

• the Sun

Why do we use light energy?

• Light energy helps us to hear.

• Light energy helps us to move.

• Light energy helps us to see.

• Light energy helps us to work.

Which electronic appliance will change from electrical energy to sound energy?

• Rice cooker

• Fan

• Speaker

• Phone charger