Contents
Key Stage 3
Meaning
Refraction is when a wave changes direction as it moves from one medium to another.
About Refraction
- Waves travel in a straight line until they reach a new medium. If the wave can travel through the new medium it will change direction. This is called refraction.
- Refraction can happen to all waves.
Refraction of Light
- When light moves from one transparent medium to another it is refracted.
 |
 |
| When a ray of light moves from air into water the ray is refracted towards the normal. | When a ray of light moves from water into air the ray is refracted away from the normal. |