| A | B |
|---|
| 1. Temperature | a measure of the average energy of the particles that make up a substance. |
| 2. Thermal energy | the total energy of all the particles of a substance. |
| 3. Heat | energy transferred from a hotter substance to a cooler one. |
| 4. Conduction of heat | transfer of energy through a material by direct collision of particles. |
| 5. Conductor | a material that allows heat to transfer through it readily. |
| 6. Thermal conductivity | the measure of the ability of a material to conduct heat. |
| 7. Convection current | the circulating path of a fluid caused by the application of heat. |
| 8. Fluid | anything that flows; gases or liquids. |
| 9. Convection | the process of transferring heat by the circulating motion of particles. |
| 10. Thermals | the rising part of a convection current in the atmosphere. |
| 11. Radiation | the transfer of energy in a wave-like form. |
| 12. Heat waves | infrared radiation. |
| 13. Heat rays | also heat waves; infrared radiation. |
| 14. Infrared radiation | a type of radiant energy; also called heat waves or heat rays. |
| 15. Reflected | to bounce off of something. |
| 16. Absorbed | taken in by a material. |
| 17. Transmitted | passed from one material to another. |
| 18. Heat insulator | a material that is used to reduce the amount of heat transfer. |
| 19. Insulation | the prevention of a large amount of heat transfer. |
| 20. RSI value | the resistance to heat transfer of a material of a specific thickness. |
| 21. Greenhouse effect | a warming of the temperature of the air, caused by the trapping of heat as in a greenhouse, where heat is trapped inside a glass structure; this effect also occurs in the Earth's atmosphere, where carbon dioxide molecules trap heat. |
| 22. Joule | the SI unit for energy; the symbol is J. |
| 23. Specific Heat capacity | the amount of heat transferred (absorbed or emitted) when the temperature of 1.0kg of a substance changes by 1.0 degrees Celsius |
| 24. Law of Conservation of Energy | energy is never created or destroyed by ordinary means. |
| 25. Principle of Heat transfer | in a perfectly insulated system, when tow substances at different temperatures are mixed, the heat released by the hotter substance equals the heat gained by the colder substance. |
| 26. Non-renewable resources | resources that are in limited supply; oil, coal. |
| 27. Renewable resources | resources that can be replaced; wood. |
| 28. Solar energy | radiant energy that reaches the Earth from the Sun. |
| 29. Passive solar heating | the use of solar energy to heat structures directly |
| 30. Active solar heating | the use of solar energy to heat structures indirectly; for example, using a material to absorb heat and then later use it. |
