2. Lesson: Energy

3. Science Differentiation in action The Universe is made up of: Matter& Energy

4. Science Differentiation in action Energy is the ability to do _______. What is energy? work HINT Work is done when a force moves an object. Work done = force x distance A body that has energy is able to do work.

5. Science Differentiation in action Energy is measured in Joules. For example, a person needs 1000 Joules of energy to walk up the stairs. We get this energy from respiration (i.e. using oxygen to release energy from food). HINT

6. Science Differentiation in action There are many different forms of energy. Can you name some?

7. Science Differentiation in action Light Energy Light Energy travels in waves and is an important source of energy for our planet.

8. Science Differentiation in action Electrical Energy Electrical energy is a very useful form of energy.

9. Science Differentiation in action Sound Energy Sound Energy is caused by vibrations.

10. Science Differentiation in action Chemical Energy Chemical Energy is stored in oil, gas or other fuels. It is also stored in food. BatteryFood CoalOil

11. Science Differentiation in action Potential Energy is stored energy just waiting to do work. A brick held up high A coiled spring

12. Science Differentiation in action Kinetic Energy is energy that all moving things have. A moving car A moving dog

13. Science Differentiation in action Now, in your copy write down all the different forms of energy that you can remember…….

14. Science Differentiation in action 1. Energy is the ability to do___________. Review Questions 2. What unit is energy measured in? HINT

15. Science Differentiation in action Can energy be destroyed? Question to think about!