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Waves

AQA Waves

TermDefinition
perpendicular At right angles
ninety How many degrees in a right angle
plane A flat mirror
mechanical This type of wave travels through a substance
vibrate moves backwards and forwards quickly
transverse a wave that moves up and down
pitch This increases if the frequency of sound wave increases.
amplitude The height of a wave crest or trough from the rest position
ultrasonic Sound wave with frequency of more than 20 000Hz
Hertz The unit we measure frequency in
diffraction The spreading of waves when they pass through a gap
frequency The amount of wave peaks passing a fixed point every second
compressed Squeezed together
rarefaction Stretched apart
echo Reflection of a sound
reflection the angle between the normal line and the reflected ray
equal The law of reflection states that the angle of incidence and the angle of reflection are ...
Created by: 640233744
 

 



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