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Unformatted text preview: Review Notes For Waves, Sound, Light, and Color SAR Physics AM Kolchin I. Wave Motion 1. Harmonic motion in space and time 2. Energy is transferred 3. Longitudinal waves: vibrations in direction of wave mo- tion. ex: sound: vibrations of pressure and air density 4. Transverse waves: vibrations perpendicular to wave motion. ex: electromagnetic radiation (light), vibrations in elec- tric and magnetic fields. 5. Properties of Waves : (a) amplitude: maximum displacement of the vibration (b) wavelength: distance between crests (c) period: time between crests (d) frequency: number of waves passing a point per second (It is the reciprocal of the period). (pitch for sound, color for light). (e) intensity: square of the amplitude (loudness of sound or brightness of light) (f) velocity 1 6. Interference: two or more waves combining to (a) cancel out (destructive interference) (b) reinforce each other (constructive interference) (c) form standing waves (wave interfering constructively with its reflection)....
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