Light waves are transverse waves – energy travels perpendicular to the matter.
- It is the reflection of light which allows us to see things (light bounces off objects into our eyes)
- If a light ray hits a reflective surface (eg. a mirror) the rays will reflect back at the same angle of the normal line
- If a wave refracts, it bends and changes direction
- It occurs when a wave enters a medium of a different density – when it returns to the medium of original density, it will travel in the same direction it started
- Waves ‘disperse’ when the waves hit an obstacle with an opening, they bunch up and spread out after the opening on the other side