Waves and its properties
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The document discusses wave properties including frequency, period, and interactions with surfaces. It defines frequency as the velocity divided by wavelength and calculates the frequency of a wave moving at 5 m/s with a wavelength of 1 m as 5 cycles/sec and a period of 0.2 sec. It also lists the four interactions waves can have with surfaces as reflection, refraction, diffraction, and absorption.
Waves and its properties
- 20. Frequency =? Period =? λ= 1 m s = 5 m/s f = s ÷ λ f = 1/T or T = 1/f
- 21. Frequency: f = velocity ÷ wave length f = 5 m/s ÷1 m f= 5 cycles/sec Time period: T=1/f T = 1/5 cycles/s T = .2 sec
- 22. When a wave encounters a surface, four interactions can occur:  Reflection,  Refraction,  Diffraction, or  Absorption.
- 26. • The oscillations of a transverse wave are not in the direction the wave moves.
- 29. • The oscillations of a longitudinal wave are in the same direction that the wave moves.
- 36. • What happens when one pulse is on top of the string and the other is on the bottom? • When the pulses meet in the middle, they cancel each other out. • During destructive interference, waves add up to make a wave with smaller or zero amplitude.