1. WEEK20 PHYSICAL SCIENCE VOCABULARY

2. 1) THERMAL ENERGY Total amount of energy in all of the particles contained in a sample of matter.

3. 2) TEMPERATURE Measure of the average kinetic energy of the particles in a sample of matter.

4. 3) HEAT The transfer of thermal energy between two objects at different temperatures.

5. 4) CONDUCTION The transfer of heat by direct contact of particles.

6. 5) CONVECTION The transfer of heat in fluids by the movement of currents that form in the fluids.

7. 6) RADIATION The transfer of heat without matter; heat that can travel through empty space.

8. 7) CALORIE Metric unit of energy; 1 calorie = 4.2 joules

9. 8) JOULE The SI unit of energy; 1 calorie = 4.2 joules

10. 9) FLUIDS a substance, as a liquid or gas, that is capable of flowing

11. 10) VACUUM a space entirely devoid of matter