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ENERGY

ENERGY. By: Brianna Shields April 25, 2005. DO NOW. 1. Which phase of matter possesses the highest level of energy? 2. Which possesses the highest level of energy: ice, liquid water or steam?

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ENERGY

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  1. ENERGY By: Brianna Shields April 25, 2005

  2. DO NOW • 1. Which phase of matter possesses the highest level of energy? • 2. Which possesses the highest level of energy: ice, liquid water or steam? • 3. When water condenses, gaseous vapor turns to liquid droplets. Is energy added or lost to accomplish this?

  3. GOAL • To define energy • To understand the law of conservation of energy • To state several different forms of energy and give an example of each

  4. Mechanical energy Energy associated with motion or movement Types of Energy

  5. Examples of Mechanical Energy Waterfall

  6. Examples of Mechanical Energy Wind

  7. Examples of Mechanical Energy Airplane

  8. Examples of Mechanical Energy Dancing

  9. Examples of Mechanical Energy Hitting a ball

  10. Examples of Mechanical Energy Sound (waves)

  11. Heat energy The speed at which particles are moving to create warmth The rate of particle movement (fast or slow) Types of Energy

  12. Examples of Heat Energy Rubbing hands together

  13. Examples of Heat Energy Melting Ice

  14. Examples of Heat Energy Causes water to boil

  15. Chemical energy Energy used in the breaking down and building up of atoms (materials) Activities requiring you to break chemical bonds Types of Energy

  16. Examples of Chemical Energy Released when a fire is started

  17. Examples of Chemical Energy Used to shoot off a rocket

  18. Examples of Chemical Energy Digesting food

  19. Examples of Chemical Energy Using muscles to play sports

  20. Electromagnetic energy Energy created by moving electrical charges Used in electricity and light Types of Energy

  21. Examples of Electromagnetic Energy Powerlines

  22. Examples of Electromagnetic Energy Electric motors

  23. Examples of Electromagnetic Energy Light (rainbow)

  24. Examples of Electromagnetic Energy Xrays Radios Lasers

  25. Nuclear energy Created by splitting the nucleus of an atom Types of Energy

  26. Examples of Nuclear Energy Atomic bomb

  27. Assessment Work with your partner on completing the activity about energy

  28. Energy transformations Changing or converting one type of energy into another Law of Conservation of Energy

  29. Law of conservation of energy Energy cannot be created nor destroyed- only transformed Can’t make new energy Can’t get rid of energy Law of Conservation of Energy

  30. Law of conservation of energy Example: TOASTER Uses electricity (plugged in) ELECTROMAGNETIC Heats or cooks toast HEAT OR CHEMICAL Law of Conservation of Energy

  31. Energy Conversions Talking on the phone Mechanical Electrical

  32. Energy Conversions Using a blow dryer Electrical Mechanical or Heat

  33. Energy Conversions Playing the piano Mechanical Mechanical

  34. Energy Conversions Using a microphone Mechanical Electromagnetic

  35. Energy Conversions Plants growing in the sun Electromagnetic Chemical Mechanical

  36. Energy Conversions Flashlight Chemical Electromagnetic

  37. Energy Conversions Driving a car Chemical Heat Mechanical

  38. Energy Conversions Lighting a match Chemical and Heat Mechanical

  39. Energy Conversions Using an electric blanket Electromagnetic Heat

  40. Energy Conversions Using a lamp Electromagnetic Electromagnetic

  41. Kinetic Energy The energy of movement or motion Faster things have more KE Kinetic & Potential Energy

  42. Examples of KE Paper airplane flying through air

  43. Examples of KE A diver diving off a diving board

  44. Examples of KE A carousel spinning around

  45. Which most likely has more kinetic energy? Airplane? OR Car?

  46. Which most likely has more kinetic energy? Rabbit? OR Turtle?

  47. Potential Energy Enregy of position or stored energy High PE at point with greatest height (farthest from the ground) Kinetic & Potential Energy

  48. Examples of PE A compressed spring

  49. Examples of PE Stretched rubber band

  50. Examples of PE Wind up toy

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