3. Make a list of everything you did this morning from the time you got up until the time you walked into the school.

4. Did you use any of these things?

6. What is one thing that they all have in common? They all involve energy

7. Today… Define energy and work Determine the state of a source of energy

8. Agenda:

9. Energy The ability to do work or make something happen But…. What is work?

11. Work Using force (a push or pull) to make something move through a distance

12. So energy is… The ability to make something move or make something happen or the ability to do work

13. What are the different types of energy? List as many as you can think of in your Scientist’s Notebook.

14. All energy exists in one of two states: Potential Kinetic

16. Potential Energy Energy that is stored. Hasn’t been used yet. 2 Causes of Potential Energy: ◦ 1. An object’s position ◦ 2. An object’s condition

17. Because of height ◦ Caused by gravity ◦ More height = more potential energy

18. Potential Energy based on Position

19. More height = more energy… Which has more potential energy?

20. What about this? When they both finish moving their objects to the top, which object will have more potential energy?

21. Because of height ◦ Caused by gravity ◦ More height = more potential energy Because of being forced beyond its normal position ◦ Because of elacticity (stretchiness) ◦ Like a bow/arrow or a spring

22. PE because of Position Because of Elasticity - elastic

23. PE because of position…

24. PE because of position…gravity or elasticity?

25. What gives this girl potential energy?

26. Because of height ◦ Caused by gravity ◦ More height = more potential energy Because of being forced beyond its normal position ◦ Because of elacticity (stretchiness) ◦ Like a bow/arrow or a spring Because of its atoms Energy stored in the bonds joining atoms Energy stored in the nucleus of an atom Like in gasoline, a battery, or food

27. Potential energy can also be because of an object’s condition.

29. Because of height ◦ Caused by gravity ◦ More height = more potential energy Because of being forced beyond its normal position ◦ Because of elacticity (stretchiness) ◦ Like a bow/arrow or a spring Because of its atoms Energy stored in the bonds joining atoms Energy stored in the nucleus of an atom Like in gasoline, a battery, or food

30. Once the energy is put to use, it becomes….Kinetic Energy Energy in motion Energy that’s being used

31. Potential energy (stored energy) gets converted to kinetic energy, (or energy of motion).

33. More examples….

35. What are some examples of potential and kinetic energy?

38. More about Potential and Kinetic Energy Brainpop on Potential and Kinetic Energy

39. Now it’s your turn: Think of an example of potential and kinetic energy. You will be making a flip book to illustrate your example. Let’s make our book first.

40. Take your white paper and fold it in half horizontally.

41. Fold in half again. Unfold the last fold you made. Take your scissors and cut along the fold line on the top flap only.

42. Label one side “Potential Energy” and the other side “Kinetic Energy”

43. On your other sheet of white paper, make a practice drawing. Don’t use much detail. It’s not your real one. Give me the signal to approve it. Start your real drawing in your flip book. It must be colored, and your words must be in ink. Do the whole thing in pencil first, then go over it with markers, colored pencils, etc. (In case you mess up!)

45. There are 2 types of energy: Energy can exist in many forms: (Video Clip)

46. Forms of energy: http://www.brainpop.com/science/energy/f ormsofenergy/ http://www.brainpop.com/science/energy/f ormsofenergy/

47. Forms of energy Mechanical Heat Chemical Electrical Radiant Nuclear Sound

48. Notes Mechanical Energy Notes Blah, blah Blah, blah, blah Thermal or Heat Energy Draw a quick picture of one example of each energy form Fit 2 energy forms per page!

49. MMMM eeee cccc hhhh aaaa nnnn iiii cccc aaaa llll E E E E nnnn eeee rrrr gggg yyyy Energy of moving objects

50. HHHH eeee aaaa tttt ( ( ( ( oooo rrrr t t t t hhhh eeee rrrr mmmm aaaa llll )))) E E E E nnnn eeee rrrr gggg yyyy Energy from quick moving molecules or atoms

51. CCCC hhhh eeee mmmm iiii cccc aaaa llll Energy stored in atoms and molecules because of their bonds. Ex: natural gas, propane, coal, biomass

52. EEEE llll eeee cccc tttt rrrr iiii cccc aaaa llll Energy produced when electrons flow (or move). Ex: Lightning, electricity

53. Radiant Electromagnetic energy that travels in waves through empty space Ex: light, x-rays, radio waves, solar energy

55. Nuclear Energy stored in the nucleus of an atom The force that holds the neutrons and protons together is very strong. If you break that bond, it releases LOTS of energy!!

56. Intro to Nuclear Energy Intro to Nuclear Energy Nuclear Medicine The Bomb

57. Sound Sound is energy??? You bet!! Energy that moves in waves through substances.

58. Sound energy travels in waves.

59. Let’s talk more about Heat Energy or Thermal Energy Remember that it’s the energy caused by the movement of particles in an object. Turn to the next available page in your Scientist’s Notebook. At the top write HEAT Make a T-Chart

63. What is heat? Energy from an object’s moving particles. The faster the particles are moving, the more heat energy the matter has. Thermal Energy

64. Heat… Always moves from warmer matter to cooler matter! Memorize this!!!! Trick = It’s trying to cool itself off.

65. (or How Heat Travels) Conduction Convection Radiation

66. When heat moves from particle to particle because they are touching each other. Only happens when particles are TOUCHING!!! Trick: “Uh” Example: A pot on a stove eye heats up because the fast moving particles of the eye bump into the particles of the pot, and the energy is transferred.

67. When an object’s particles get heated, the particles move faster and bump into the nearby particles.

69. Heat is transferred by the heated matter moving. Occurs in liquids and gases Steps: Matter is heated and becomes less dense.

70. Since the heated matter is less dense, it rises. The cooler matter slides in to take its place.

71. Convection, cont. Example: Boiling water- The water at the bottom is heated, expands, becomes less dense, then rises. The water above is still cool, so it sinks

72. Convection causes thunderheads.

73. Convection causes wind – especially at the beach!

74. Convection helps us heat our home, cool our food, and even cook our food!

75. When heat moves (or radiates) through empty space. Doesn’t need to travel through matter like conduction or convection.

81. Discovery Science – Heat Transfer