Key points about waves, including: light and sound waves

HideShow resource information
  • Created by: Libby
  • Created on: 28-03-12 16:36


Normal line = line perpendicular to the mirror

Angle of incidence - angle of ray to normal line

Angle of reflection - angle of reflected ray to normal line

Angle of incidents = Angle of reflection

1 of 4


Refraction = change of direction of waves when they travel across a boundry

From air to glass, angle of refraction < angle of incidence

From glass to air, angle of refraction > angle of incidence

2 of 4


Diffraction = spreading out of waves, passing through gap or around something

The narrower the gap, greater the diffraction

3 of 4


Pitch of note increases if frequency of sound wave increases

Loudness of note increases if amplitude of sound wave increases

Vibrations in instruments or your throat produce soundwaves

4 of 4




Thanks , these defenitions are good help, I can't seem to get refraction right :)

Similar Physics resources:

See all Physics resources »See all Waves and Sound resources »