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Energy Transfer

Energy Transfer. Sound energy. Heat energy. Chemical energy. Light energy. Gravitational potential energy. Elastic potential energy. Electrical energy. Kinetic energy. Recall the 8 common types of energy. All. Learning objectives.

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Energy Transfer

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  1. Energy Transfer Sound energy Heat energy Chemical energy Light energy Gravitational potential energy Elastic potential energy Electrical energy Kinetic energy Recall the 8 common types of energy All Learning objectives Apply the conservation of energy to a range of appliances Most

  2. The conservation of energy 60J of light 100J of electrical 40J of heat When energy is transferred. energycannot be created or destroyed

  3. The energy transfers in a computer (What’s missing? What is the useful and waste energy?) Sound + light energy ( 80 J ) Electrical energy ( 200 J ) ( )

  4. Nintendo DS Light + sound ( 14 J ) Electrical energy ( ) (16 J)

  5. Energy transfer within a car ( 7,200 J ) 8,000 J Heat + sound ( )

  6. Calculating efficiency Example 25 J light 100 J electrical 75 J Heat Move around the room, working out the efficiency of each of the devices. TASK

  7. Sankey diagrams 7 squares = 7 joules 10 Joules electrical energy 3 squares = 3 joules 1 square is 1 joule of energy

  8. Energy splat! Kinetic energy Heat energy Gravitational potential energy Electrical energy Chemical energy Light energy Watch this space!

  9. Energy splat! 1 Kinetic energy Heat energy Gravitational potential energy Electrical energy Chemical energy Light energy What is the useful energy ?

  10. Energy splat! 2 Kinetic energy Heat energy Gravitational potential energy Electrical energy Chemical energy Light energy What is the useful energy?

  11. Energy splat! 3 Kinetic energy Heat energy Gravitational potential energy Electrical energy Chemical energy Light energy What is the useful energy produced in the moving air?

  12. Energy splat! 4 Kinetic energy Heat energy Gravitational potential energy Electrical energy Chemical energy Light energy What type of energy is generated from a wind turbine?

  13. Energy splat! 7 Kinetic energy Heat energy Gravitational potential energy Electrical energy Chemical energy Light energy What type of energy is generated?

  14. Energy splat! 8 Kinetic energy Heat energy Gravitational potential energy Electrical energy Chemical energy Light energy What type of energy is used up by the kettle?

  15. Energy splat! 9 Kinetic energy Sound energy Gravitational potential energy Electrical energy Chemical energy Light energy What type of energy is generated?

  16. Energy splat! 11 Kinetic energy Heat energy Gravitational potential energy Electrical energy Chemical energy Light energy What type of energy is stored in the match?

  17. Energy splat! 12 Kinetic energy Heat energy Gravitational potential energy Electrical energy Chemical energy Light energy An object high above the Earth has lots of this type of energy!

  18. Energy splat! 13 Kinetic energy Heat energy Gravitational potential energy Electrical energy Chemical energy Light energy What type of energy does coal contain?

  19. Energy splat! 14 100 joules 75% 20% 50 joules 200 joules 1,000 joules 150 J light 200 J in What is the efficiency 50 J in

  20. Energy splat! 15 100 joules 25 joules 20% 50 joules 200 joules 1,000 joules 300j light How much waste energy? 500j in ?? j waste

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