| A | B |
|---|
| temperature | measure of average kenitic energy |
| thermal energy | sum of kenitic & potential energy |
| energy | ability to cause change; equivalent to ability to work |
| heat | energy transfer between objects |
| specific heat | heat needed to raise temp 1Kg by 1 degree C |
| conduction | transfer of thermal energy by collisions |
| convection | transfer of thermal energy in fluid |
| radiation | transfer of energy by electromagnetic waves |
| thermal insulator | material through which thermal energy moves slowly |
| density | mass per unit volume of substance |
| mechanical energy | sum of potential energy |
| thermodynamics | study relationship between thermal energy, heat, work |
| 1st law of thermodynamics | if mechanical energy of system is constant, increase in thermal energy equals sum of thermal energy transfered, |
| 2nd law of thermodynamics | energy spontaneously spreads from high to low consentration |
| heat engine | device that converts thermal energy to mechanical energy |
| internal combustion engine | heat engine that burns fuel in set of cylinders |
| solar collector | device that transforms radiant energy from Sun into thermal energy |
