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Waves Vocabulary

Patterson CLHS - Waves and Sound Terms

# of waves / # of seconds frequency
Time for 1 wave to go by period
One of 2 main categories of waves. This category requires a medium. mechanical wave
A category of waves that can travel with no medium electromagnetic wave
height or displacement from equilibrium amplitude
The vibration is parallel to energy travel longitudinal wave
The Vibration is perpendicular to energy travel transverse wave
Distance between crests wavelength
Highest point of the wave crest
Lowest point of the wave trough
Wave bounces away at the same angle if it hits a barrier reflection
Wave bends as it goes through a different medium refraction
Vibration caused by another object vibrating at that same frequency resonance
Wave bends as it goes through an opening diffraction
Sum OR difference of amplitudes, due to wave interference Superposition Principle
Resultant wave has larger amplitude constructive interference
Resultant wave has smaller amplitude destructive interference
Two identical waves in opposite directions through same medium standing wave
Stationary locations on a standing wave nodes
Moving locations on a standing wave anti-nodes
Symmetrical motion around an equilibrium position simple harmonic motion
Apparent frequency shift due to relative motion between the wave source and the observer Doppler effect
Gets larger if amplitude is larger loudness of sound
Gets higher if frequency is higher pitch of sound
The relationship between f and T inverse
Also called compression type longitudinal wave
Larger through solids speed of sound
Created by: kpatterson115
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