| A | B |
|---|
| energy | is the ability to cause change |
| kinetic energy | is energy in the form of motion |
| potential energy | is the stored energy, amount depends on position or its condition |
| work | is the transfor of energy through motion, work= force * distance |
| mechanicl energy | is the total amount of kinetic and potential energy in a system |
| law of conservation of energy | energy may change form but can not enter or leave the system |
| temperature | is the measure of average kintic energy of the particles in a sample of matter |
| thermal energy | is the total energy of particles that make up matter |
| heat | is the thermal (or internal) enregy that flows from something with a higher temperature to something with a lower temperature |
| thermal pollution | occurs when waste heat significantly changes the temperature of the environment |
| specific heat | of a material is the amount of energy it takes to raise the temperature of 1kg of the material 1 kelvin {j/(kg*k)} |
| the formula for the change in thermal energy | Q=mass * ^t * sh, ^t=T final-T initail |
| conduction | is the transfor of energy through matter by direct contact of particles |
| fluid | any material that flows |
| convection | is the transfor of energy by the bulk movement of matter |
| radiation | is the transfor of energy in the form of waves |
| insulator | do not allow heat to move easily though them |
