1. Essential Energy

2. Lesson 1 There are five forms of Energy in Action Heat Light Electrical Sound Movement (Kinetic)

3. Lesson 2 There are 4 types of stored energy Stored = potential = about to happen later Gravitational PE – energy stored in things when they are high up Chemical PE – energy stored in chemicals Nuclear PE – energy stored inside the nucleus of atoms Strain PE – energy stored in things when they are stretched or squashed

4. Energy Changers 3 Gas firechemical PE  heat Bow and arrowStrain PE  kinetic Radioelectrical  sound Hair straighterelectrical  Heat TVelectrical  sound + light Lift going upelectrical  movement + gravitational PE Guitar stringmovement  sound Microphonesound  electrical Battery torchchemical PE  light + heat

5. Gravitational PE  Kinetic PositionType AKinetic BGravitational PE + Kinetic CGravitational PE

6. Roller Coaster Energy

7. Gravitational Potential Energy Gravitational PE  Kinetic Energy Gravitational PE  Kinetic Energy Gravitational Potential energy can be to power a radio Gravitational Potential energy can be to power a radio

8. Lesson4 Wasted Energy Most machines waste energy in the form of heat and a little noise. The heat and sound spread out into the surroundings and becomes useless. Energy is never completely disappear it is only wasted and spreads out. In a car engine 30% of the energy from the petrol is converted into kinetic energy to produce movement – the rest of the petrol's energy is converted to heat and sound energy. Video on energy transfers of in a car Link to PowerPoint on energy transfers and waste

9. Lesson 4 Sankey Diagram for old fashioned filament light bulb Only 10% is actually converted into light

10. Lesson 4 Sankey Diagram for energy saving light bulb 75% is converted into light

11. Lesson 4 Sankey Diagram for Coal fired power station

12. Lesson 4 Sankey Diagram for Petrol Engine

13. Lesson 4 Sankey Diagram for Human Body

14. Lesson 4 Sankey Diagram For a Microwave oven Kinetic light Heat Microwave Total Energy from mains electrical supply sound

15. Lesson 4 Sankey Diagram For a Car Kinetic 30% Sound Heat Car Total Energy from Chemical PE in petrol 100%

16. Lesson 6 Pendulum Challenge The period of a pendulum is the time a pendulum takes to swing forward and back to its stating point Equipment – String – Pendulum bob – Meter stick – Timer – Clamp stand – Wooden dowel You have to find out what length of string will give a period of 1 second in other words 60 swings in one minute In groups decide upon a plan and carry out the investigation. You will be changing the length but what ting should you keep the same during the experiment in order to make it a fair test Make a poster showing with a clear diagram of your equipment, a note of how you did the experiment and your results.