1. Reflection of Light Definition of Reflection Types of Reflection Laws of Reflection Plane Mirrors Uses of Reflection

2. Light An electromagnetic wave It does not need a medium to travel in space It travels in a straight line In a vacuum, its speed is 3x10 8 ms -1 It is a transverse wave

3. Sources of Light Luminous sources street lamps sun

4. Sources of Light Luminous sources anglerfish firefly

5. Sources of Light Non-Luminous sources Moon

6. Sources of Light Non-Luminous sources You (People)

7. Sources of Light Non-Luminous sources