| A | B |
|---|
| natural resource that can be replaced at the same rate at which the resource is consumed | renewable resource |
| a nonrenewable energy resource formed from the remains of organisms that lived long ago | fossil fuels |
| a resource that forms at a rate that is much slower than the rate at which it is consumed | nonrenewable resource |
| a force that opposes motion between two surfaces that are in contact | friction |
| produced by the vibrations of electrically charged particles | light energy |
| a change from one form of energy to another | energy conversion |
| a comparison of the amount of energy before a conversion with the amount of useful energy after a conversion | energy efficiency |
| the energy of moving electrons | electrical energy |
| the energy of a compound that changes as its atoms are rearranged | chemical energy |
| all of the kinetic energy due to random motion of the particles that make up an object (energy of heat) | thermal energy |
| the total energy of motion and position of an object | mechanical energy |
| the energy an object has because of its position | potential energy |
| the energy of an object due to its motion | kinetic energy |
| the ability to do work | energy |
