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8Sci CH3
Electromagnetic Waves
| Question | Answer |
|---|---|
| diffraction | bending of waves by passing through an opening, around obstacles or by sharp edges |
| electromagnetic spectrum | the entire range of electromagnetic waves as shown in both frequencies and wavelengths |
| electromagnetic wave | transverse waves that do not require a medium through which to travel and are produced by an oscillating charge |
| radiation | transfer of energy by electromagnetic waves |
| trough | lowest point between two waves |
| wavelength | distance between two crests |
| crest | high point of a wave; peak |
| amplitude | distance between crest or peak (highest amplitude value) and trough (lowest amplitude value) |
| RoyGBiv | colors of rainbow (red, orange,yellow, green, blue, indigo, violet) |
| visible light | falls in the range of the EM spectrum between infrared (IR) and ultraviolet (UV). |
| x-rays | between UV radiation and gamma rays |
| gamma rays | penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei |
| radio waves | electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared |
| frequency | number of wave crests that pass a point in one second; the unit is Hertz (Hz) |
| Inversely proportional | wavelength and frequency are inversely proportional |
| wave spectrum | radio wave, microwave, infrared, visible, ultraviolet radiation, X-Ray, gamma-ray |