Changes of energy

It changes electric energy into............

• light

• sound

• kinetic

Knocking the door changes ............... energy into sound.

• light

• kinetic

• electric

This device is a source of ................. energy.

• light

• chemical

• sound

Which one changes kinetic energy into sound energy.

• 
• 
• 

It changes electric energy into light energy.

• true

• false

In solar heater the used energy is light energy.

• true

• false

on rubbing your hands together, .......... energy is produced.

• electric

• light

• heat

In the guitar kinetic energy changes into .......... energy.

• sound

• heat

• potential

Electric energy changes into kinetic energy in ...........

• 
• 
• 

Light energy changes into heat energy in solar heater.

• true

• false