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Ch. 14 Waves (General) Review

Ch. 14 Waves (General) Review. ANSWERS. Frequency Standing waves Refraction Compression Medium Interference Compressional wave (longitudinal) Transverse Remains the same node. Ultraviolet waves Gamma rays Electromagnetic waves Radio waves Infrared waves Visible light X rays

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Ch. 14 Waves (General) Review

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  1. Ch. 14 Waves (General) Review ANSWERS

  2. Frequency Standing waves Refraction Compression Medium Interference Compressional wave (longitudinal) Transverse Remains the same node Ultraviolet waves Gamma rays Electromagnetic waves Radio waves Infrared waves Visible light X rays Ultraviolet Radio Energy COMPLETION

  3. COMPLETION continued • Higher • Electromagnetic waves • wavelength

  4. SHORT ANSWER • A sound wave is a mechanical wave and needs a medium (air) to travel. There is no air in a vacuum. • The crust breaking creates vibrations that carry out energy in the form of waves. • B,A,C • Amplitude is determined by the area that is squeezed together. • At the node (trough), destructive interference takes place and at the crest (antinode), constructive interference takes place.

  5. SHORT ANSWER continued • The wavelength decreases (shortens) but, the amplitude and speed stay the same. • They both generate changing fields. • Microwaves vibrate the water molecules in the cake batter, creating thermal energy to bake the cake. There are no water molecules in the baking dish.

  6. SHORT ANSWERS continued • UVA and UVB are two types of ultraviolet waves. UVA has a longer wavelength and causes wrinkles and tanning. UVB has a shorter wavelength and causes sunburn. Too much UVB can cause cancer. • When you set your radio to a particular frequency, your radio receives that frequency and whatever is happening on that frequency (music, sports, talk radio, Oprah, truck drivers, etc)

  7. PROBLEMS • Given: 4.4 m, 2.0 s Formula: V = d/t Solution: 4.4 m/2.0 s = 2.2 m/s 35.Given: 2.0 Hz, 10 m Formula: n = l/f Solution: 2.0 Hz x 10 m = 20 m/s

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