unit 4 final revision part 1

All the following are renewable energy resources except,

.........................

• waterfalls

• coal

• the sun

• wind

hydroelectric energy is generated from..................

• waterfalls only

• waterfalls and dams

• biofuel only

• biofuel and fossil fuel

 

both hair dryer and electrical water kettle produce ……………… energy

• chemical

• thermal

• electrical

• potential

some electrical devices need………………….. Energy to be recharged.

• Electrical

• thermal

• potential

• sound

a process in which water changes into water vapor??

• Evaporation

• condensation

• freezing

the liquid that stores chemical energy, and is used to move cars??

• gasoline

• water

• coal

a fuel that is produced from remains of dead animals and plants under the Earth's surface??

• Fossil fuel

• biofuel

it is a device that produces light from electricity

??

• hair dryer

• electric lamp

• washing machine

 

When you use the handbell the…………… energy changes into sound energy.

• Light

• thermal

• kinetic

• electrical

using a convergent………………. Sheets in cooking food, is one of the benefits of using solar energy

• paper

• wooden

• mirror

• plastic