Across
- 4. the process by which heat or electricity is directly transmitted through a substance
- 6. a measure of the warmth or coldness of an object or substance with reference to some standard value.
- 7. a substance which does not readily allow the passage of heat, electricity, or sound.
- 8. a substance that has no fixed shape and yields easily to external pressure
- 9. the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink
- 11. a device that absorbs thermal energy and moves it ouside the object; refrigerator, air conditioner, heat pump. (2 words)
- 12. a form of energy arising from the random motion of particles.
- 13. the emission of energy as electromagnetic waves or as moving subatomic particles
- 14. the amount of heat per unit mass required to raise the temperature by one degree Celsius. (2 words)
- 15. energy from the sun that is converted into thermal or electrical energy. (2 words)
Down
- 1. any of various devices for the absorption of solar radiation for the heating of water or buildings or the production of electricity. (2 words)
- 2. the act of burning
- 3. an engine that generates motive power by the burning of gasoline, oil, or other fuel with air inside the engine. (2 words)
- 5. the energy that is generated and measured by heat. (2 words)
- 10. a device for producing motive power from heat, such as a gasoline engine or steam engine. (2 words)