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Wave Vocabulary

Wave properties and sound vocab

QuestionAnswer
Harmonic Motion Motion that repeats over and over again.
Cycle Something describing a motion that repeats over and over again. Ex: Swing
Pendulums An object that swings back and forth due to the force of gravity.
Oscillator A physical system that has repeating cycles.
Restoring Force Any force that always acts to pull back a system toward equilibrium.
Period Frequency The time it takes one cycle to occur.
Hertz The unit for one cycle per second.
Amplitude Describes the size of a cycle.
Natural Frequency The frequency at which a system naturally oscillates.
Wave An oscillation that travels from one place to another.
Wave Length The distance from any point on a wave to the same point on the next cycle of the wave.
Transverse Not in the direction waves move.
Longitudinal Waves are in the same direction that the waves move.
Reflection When a wave bounces off an object.
Refraction Occurs when a wave bends as it crosses a boundary.
Constructive Interference When waves add up to make a larger amplitude.
Destructive Interference Waves add up to make a wave with smaller or zero amplitude.
decibel unit for loudness
super sonic describes traveling faster than the speed of sound
pitch increased when frequency is increased
Doppler Effect when frequency shifts due to motion (i.e. an ambulances siren)
Created by: kmbrinkley
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