Activity 2
Write True if the statement is correct or False if it is not write your answers on the
space before the number
1. A fire alarm changes electrical energy to thermal energy.
2. A battery-operated toy robot transforms mechanical energy to chemical
energy
3. When you play a piano, it converts mechanical energy to sound energy
4. My loudspeaker converts light energy to sound energy.
5. A moving violin bow transforms mechanical energy to sound energy.
6. When you speak into your cellphone, sound energy from your voice is
changed into thermal energy
7. A television changes nuclear energy into sound and light energy.
8. When you pluck the strings of the guitar you are changing mechanical
energy
to sound energy
9. A church bell converts sound energy to electrical
10. When an electric bell button is pressed, it transforms electrical energy
to sound energy.​