1. M. Manser (2014)

2. Module P1:  Refraction of light M. Manser Sackville School

3. Describe the features of transverse waves i.e. crest and trough, amplitude, wavelength and frequency. Select and use the equation: wave speed = frequency x wavelength ; including a change of subject. Explain reflection, refraction and diffraction. Explain how the amount of diffraction depends on the size of the opening and wavelength. Name, in order of frequency or wavelength, the seven parts of the electromagnetic spectrum. Relate the receiver size to wavelength.

4. Refraction is the bending of light as it crosses into a different substance. This simple phenomenon is the reason for many different effects in everyday life!

6. When light enters a different substance, its speed is affected. Air and glass for example are very different substances. Light can travel through air much easier than it can travel through glass. When the ray hits the glass block, the light slows down. The change in speed causes the light to change direction and bend! We then say that it has been refracted.

8. Refraction in a glass block

9. A B C D

10. 4 m A B C D

11. Refraction summary