week20 physical science vocabulary. 1) thermal energy total amount of energy in all of the particles...
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W E E K 2 0
PHYSICAL SCIENCE VOCABULARY
1) THERMAL ENERGY
• Total amount of energy in all of the particles contained in a sample of matter.
2) TEMPERATURE
• Measure of the average kinetic energy of the particles in a sample of matter.
3) HEAT
• The transfer of thermal energy between two objects at different temperatures.
4) CONDUCTION
• The transfer of heat by direct contact of particles.
5) CONVECTION
• The transfer of heat in fluids by the movement of currents that form in the fluids.
6) RADIATION
• The transfer of heat without matter; heat that can travel through empty space.
7) CALORIE
• Metric unit of energy; 1 calorie = 4.2 joules
8) JOULE
• The SI unit of energy; 1 calorie = 4.2 joules
9) FLUIDS
• a substance, as a liquid or gas, that is capable of flowing
10) VACUUM
• a space entirely devoid of matter