Energy review

1. A photovoltaic (solar cell) is a device that turns chemical energy into nuclear energy.

• True
• False

2. In an electric mixer, electrical energy is changed into potential energy.

• True
• False

4. Most energy sources have some kind of negative consequence.

• True
• False

6. About 20% of the energy generated in the United States is supplied by nuclear power.

• True
• False

7. The Sun is an example of an inexhaustible resource.

• True
• False

8. The energy created from heat generated inside of the Earth is called geothermal energy.

• True
• False

11. Nearly all of the energy that we use today can be traced back to the Sun.

• True
• False

12. The burning of fossil fuels can result in acid rain.

• True
• False

13. Hydroelectricity involves transforming the potential energy of water trapped behind dams.

• True
• False

15. A heated iron has thermal energy.

• True
• False