Test3_ Study Guide - Test 3 Study Guide Review of Chapters...

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Test 3 Study Guide Review of Chapters 13, 14, 15, and 16 1 . Source of waves Any vibrating object. For example, a vibrating string creates a sound that propagates in space. A vibration is a wiggle. When the wiggle moves through space and time it is a wave . The source of all electromagnetic waves is vibrating charges. 2. Basics about waves Period - Frequency Relationship Period = 1/ Frequency The SI unit of frequency is the hertz (Hz) – one period of vibration per second. Wave Speed wave speed = wave length/ period or wave speed = frequency × wavelength 3. Types of waves 0. Transverse: Right-angled, or sideways, motion. The direction of wave and the direction of vibration are perpendicular. Example: Light 1. Longitudinal: Direction of wave propagation and the direction of vibrations are the same. Example: sound o Standing waves is the result of interference of two sets of waves of equal amplitude and wavelength that pass through each other in opposite direction.
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  • Fall '08
  • Khankasayev
  • Light, Wavelength

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