| A | B |
|---|
| electromagnetic wave | A form of energy that can travel through space |
| radiation | The direct transfer of energy through empty space by electromagnetic waves. |
| infrared radiation | is a form of energy with wavelengths that are longer than red light |
| ultraviolet radiation | which has wavelengths that are shorter than violet light. |
| scattering | Reflection of light in all directions. |
| thermal energy | The energy of motion in the molecules of a substance. |
| temperature | the avearge amount of energy of motion in the molecules of a substance |
| thermometer | An instrument used to measure temperature, consisting of a thin, glass tube with a bulb on one end that contains a liquid (usually mercury or alcohol). |
| heat | The energy transferred from a hotter object to a cooler one. |
| What three ways is heat transferred? | radiation, conduction, and convection |
| conduction | The transfer of heat from one substance to another by direct contact of particles of matter. |
| convection | The transfer of heat by movements of a fluid. |
