| A | B |
|---|
| radiation | energy transfer by electromagnetic waves |
| photon | bundle of radiation with no mass |
| infrared radiation | electromagnetic radiation that is felt as heat |
| opaque material | object that can't be seen through |
| incandescent light | light produced by heat |
| reflection | occurs when a wave strikes an object and then bounces off |
| diffraction | the bending of waves around a barrier |
| diffraction grating | contains many parallel slits that can separate white light into colorswhite light |
| gamma rays | highest frequency electromagnetic waves |
| microwaves | radio waves with the greatest energy |
