1. Potential energy is:

a. energy of motion

b. used to do work

*c. stored energy

d. another name for mechanical energy

e. produced by electrical charges in atoms

2. Heat energy is:

*a. a combination of kinetic and potential energy

b. a type of chemical energy

c. generated by burning fuel

d. stored in molecules and chemical compounds

e. another name for nuclear energy

3. Moving an object uses:

a. chemical energy

b. electrical energy

*c. mechanical energy

d. radiant energy

e. thermal energy

4. Digestion releases:

*a. chemical energy

b. electrical energy

c. mechanical energy

d. radiant energy

e. thermal energy

5. Unbalanced forces between electrons and protons in atoms create:

a. chemical energy

*b. electrical energy

c. mechanical energy

d. radiant energy

e. thermal energy

6. Energy:

a. can be created but not destroyed

b. can be destroyed but not created

c. can be created and destroyed

*d. can be converted but not created or destroyed

e. cannot be created, converted, or destroyed

7. Calories measure:

*a. heat energy

b. force

c. power

d. work

e. electrical energy

8. Ergs measure:

a. heat energy

b. force

c. power

*d. work

e. electrical energy

9. Watts measure:

a. heat energy

b. force

*c. power

d. work

e. electrical energy

10. The largest source of energy in the United States’ energy budget is:

a. hydroelectric

b. solar

c. nuclear

d. geothermal

*e. fossil fuel

11. The largest source of energy in the earth’s energy budget is:

a. hydroelectric

*b. solar

c. nuclear

d. geothermal

e. fossil fuel

12. 746 Watts equal:

a. 1 calorie

*b. 1 horsepower

c. 1 BTU

d. 1 Joule

e. 1 erg

13. The heat required to raise the temperature of 1 gram of water from 14.5 to 15.5 ºC is:

*a. 1 calorie

b. 1 horsepower

c. 1 Watt

d. 1 Joule

e. 1 erg

14. 10,000,000 ergs equal:

a. 1 calorie

b. 1 horsepower

c. 1 Watt

*d. 1 Joule

e. 1 erg

15. How many Joules does an operating 60-Watt light bulb consume in one minute?

a. 60 Joules

b. 600 Joules

*c. 3,600 Joules

d. 36,000 Joules

e. 60,000 Joules

16. Energy is conserved with a system, but it may be converted into an unusable form. Which type of energy is usually lost in mechanical systems?

*a. heat

b. electrical

c. chemical

d. potential

e. kinetic

17. What type of energy conversion occurs within a fuel cell?

a. chemical to mechanical

b. electrical to wave

c. light to chemical

d. chemical to thermal

*e. chemical to electrical

18. What type of energy conversion occurs within a radio?

a. chemical to mechanical

*b. electrical to wave

c. light to chemical

d. chemical to thermal

e. chemical to electrical

19. Energy is the ability to:

a. release power

*b. do work

c. generate heat

d. all of the above

e. none of the above

20. Nuclear energy is released by:

a. fission in the sun and fusion in power plants

*b. fusion in the sun and fission in power plants

c. fission in both the sun and in power plants

d. fusion in both the sun and in power plants

e. both fission and fusion in the sun and in power plants