| 1. A dry cooling tower is like a _________. | |
| a) | water sprayer | b) | heat engine | c) | dry cell | d) | car radiator |
| 2. A ___________ is a material that does not allow thermal energy to be conducted easily. | |
| a) | conductor | b) | heat engine | c) | radiator | d) | insulator |
| 3. The emission of energy or high energy particles from am unstable nucleus is __________. | |
| a) | fission | b) | radioactive decay | c) | fusion | d) | radioactivity |
| 4. The thermal energy needed to change 1 kg of a liquid to a gas is called the ________. | |
| a) | heat of fusion | b) | condensation point | c) | boiling point | d) | heat of vaporization |
| 5. The temperature at which a solid changes to a liquid is its _______. | |
| a) | boiling point | b) | heat of fusion | c) | melting point | d) | heat of vaporization |
| 6. On a hot summer day, beads of water form on the outside of a glass of iced tea because of __________. | |
| a) | convection | b) | evaporation | c) | condensation | d) | conduction |
| 7. A wet cooling tower is like a ___________. | |
| a) | sponge | b) | water sprayer | c) | car radiator | d) | lake |
| 8. Metal plates make sparks as a charged particle goes by in a ___________. | |
| a) | Geiger counter | b) | bubble chamber | c) | cloud chamber | d) | spark chamber |
| 9. In a _______, electrons produce a current as they are pulled toward a wire. | |
| a) | bubble chamber | b) | spark chamber | c) | cloud chamber | d) | Geiger counter |
| 10. The process by which fast particles escape from a liquid's surface is called__________. | |
| a) | convection | b) | evaporation | c) | conduction | d) | induction |
| 11. The temperature at which a material changes from a liquid to a solid is called _________> | |
| a) | boiling point | b) | freezing point | c) | melting point | d) | heat of vaporization |
| 12. The bottoms of cooking pans are often made of cooper because cooper _________. | |
| a) | is a good insulator | b) | is a good radiator | c) | is a good conductor | d) | has a high specific heat |
| 13. During __________, energy or high energy particles are emitted. | |
| a) | radioactivity | b) | radioactive decay | c) | fusion | d) | radiation |
| 14. The force that holds protons and neutrons together in a nucleus is ______. | |
| a) | fusion | b) | radiation | c) | radioactivity | d) | the strong force |
| 15. The temperature at which a liquid can change to gas below its surface is its ________. | |
| a) | boiling point | b) | heat of vaporzation | c) | melting point | d) | freezing point |
| 16. A solid in which the particles are in patterns that repeat in all directions is a __________. | |
| a) | crystal | b) | plasma | c) | conductor | d) | radiator |
| 17. The amount of energy needed to raise the temperature of 1 kg of a material 1 degree Celsius is called __________. | |
| a) | specific heat | b) | thermal energy | c) | heat of fusion | d) | heat of vaporization |
| 18. A device for converting thermal energy into mechanical work is a ___________. | |
| a) | insulator | b) | thermometer | c) | heat engine | d) | conductor |
| 19. A __________ is a material through which it is easy to transfer thermal energy. | |
| a) | insulator | b) | crystal | c) | conductor | d) | heat engine |
| 20. The thermal energy needed to change 1 kg of a solid to a liquid is called the ________. | |
| a) | melting point | b) | freezing point | c) | heat of fusion | d) | heat of vaporization |
| 21. Charged particles leave tracks in saturated vapors in a _________. | |
| a) | cloud chamber | b) | spark chamber | c) | bubble chamber | d) | Geiger counter |
| 22. The process by which gases become liquids is called _________. | |
| a) | evaporation | b) | condensation | c) | convection | d) | heat |
| 23. In a _________ circuit, the current can follow two or more paths. | |
| a) | switched | b) | series | c) | parallel | d) | battery |
| 24. The rate of flow of electrons through a conductor is measured in _____________. | |
| a) | amperes | b) | watts | c) | volts | d) | ohms |
| 25. Soap is a __________. | |
| a) | polymer | b) | salt | c) | organic compound | d) | inorganic compound |