Hot Stuff

2. a substance changes from liquid to gas at this point
4. The relationship between the particles random motion and the bulk property of the material
6. The amount of thermal energy needed to melt one kg of a substance
8. whenever there is an opportunity for energy dispersal, energy always spreads out
9. SI unit for temperature
10. The thermal energy needed to vaporize one kg of a liquid
12. A device that is able to continuously convert thermal energy to mechanical energy
16. The state in which the rate of thermal energy transfer between two objects are equal and the objects are at the same temperature
17. The amount of energy that must be added to his unit mass of the material to raise temperature by one temperature unit
18. Heating caused by the motion of fluid in a liquid or gas due to temperature differences
20. a minute portion of matter

1. a substance changes from solid to liquid at this point
3. The change in thermal energy of an object is equal to the heat added to the object minus the work done by the object
5. a device used to measure the temperature in a specific unit
7. The transfer of thermal energy that occurs when particles collide
11. The internal energy of an object due to the kinetic energy of its atoms and/or molecules
13. The measure of the dispersal of energy
14. the degree or intensity of heat present in a substance or object
15. The transfer of energy by electromagnetic waves
19. The transfer of thermal energy, which occurs spontaneously from the hotter object to a cooler object