Learning Objectives:

1. Define energy as something that is needed to make things happen
2. Recognise that energy can exist in many forms and is measured in Joules – radiant, heat, sound, electrical, nuclear, kinetic, gravitational, chemical, magnetic and elastic.
3. Understand that energy cannot be created or destroyed, but can be transferred from one form to another.
4. Examine the properties of the energy forms in the electromagnetic spectrum (including transverse waves, speed, amplitude, frequency and wavelength).
5. Understand that light travels in a straight line and the path of light can be represented by rays.
6. Recognise that an image in a plane mirror is the same distance behind the mirror as the object is in front of the mirror.
7. When given the angle of incidence for a light ray predict the size of the angle of reflection.
8. Draw diagrams showing the reflection of light rays from concave and convex mirrors.
9. Explain the uses of curved mirrors depending on the images formed in them.
10. Describe refraction as the bending of light.
11. Apply understanding of refraction to everyday situations e.g. lenses in a range of instruments.