Waves, sound and light: Identify, describe and apply principles of geometrical optics in everyday contexts

• Identify light as a transverse wave.
• Identify and describe the wave properties of light: reflection and refraction.
• Draw diagrams showing reflection, angle of incidence and angle of reflection using plane, concave and convex mirrors and the type, size and distance of image formed.
• Draw and interpret diagrams showing refraction (angle of the light ray in the two media and normal).
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  Range: Media can be air, glass, Perspex, water and oil.
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• Draw and interpret diagrams showing total internal reflection.

By the end of this unit you will be able to:

• Identify light as a transverse wave.
• Identify and describe the wave properties of light with reference to:
  • refraction
  • reflection
• Draw and interpret diagrams of refraction, showing:
  • the angle of the light ray in two media
  • the normal.
• Draw and interpret diagrams showing total internal reflection.

By the end of this unit you will be able to:

• Draw diagrams showing reflection with reference to plane, concave and convex mirrors, indicating for each diagram:
  • the angle of incidence
  • the angle of reflection
  • the type and size of the image and the distance at which it is formed.