Across
- 1. Compressing air _________
- 3. Force x distance
- 12. The unit for work and energy
- 13. The law of ________ of energy states that energy cannot be created or destroyed
- 14. Expanding air _________
- 15. Thermal energy transfer from molecule to molecule
- 16. When water evaporates, molecular kinetic energy will _________
- 18. The process of changing from a liquid to a gas
- 21. When a substance is heated and its molecules jiggle faster and move farther apart
- 23. The movement of a single type of energy from one substance to another
- 25. Water molecules can connect to other water molecules through ________ bonds
- 26. A measure of the average kinetic energy of the molecules of a substance
- 27. Not rigid, no fixed shape, no fixed volume
- 28. The type of energy that is stored and held in readiness
- 30. The force that is formed between two masses is _________ proportional to the square of the distance between them
- 31. The conversion of one type of energy into a different type of energy
- 32. Mass x velocity
Down
- 2. Direct transfer of thermal energy from the source
- 4. Energy in motion
- 5. Thermal energy transfer driven by density differences in fluids
- 6. Not rigid, no fixed shape, fixed volume
- 7. The process of changing from a gas to a liquid
- 8. The study of the movement of thermal energy
- 9. Rigid, fixed shape, fixed volume
- 10. G is known as the universal gravitational _________
- 11. Force x time
- 17. The transfer of thermal energy from one thing to another
- 19. When two substances have transferred thermal energy and reached the same temperature
- 20. When ice melts, latent heat is ________
- 22. The process of changing from a liquid to a solid
- 24. The property of a system that enables it to do work
- 29. The process of changing from a solid to a liquid