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Electricity Presentation Outline

Electricity Presentation Outline. Created for BW Physics By Dick Heckathorn 2 April 2K + 8. Table of Contents. 3 3A1 p 45 7 3A2 p 49 16 3C1 p 53 24 3C2 p 55 27 Does size of battery make a difference? 32 Looking at Christmas Tree Bulb 42 3D1 p 57 54 3D2 p 59 70 3A3 p 75

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Electricity Presentation Outline

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  1. Electricity Presentation Outline Created for BW Physics By Dick Heckathorn 2 April 2K + 8

  2. Table of Contents • 3 3A1 p 45 • 7 3A2 p 49 • 16 3C1 p 53 • 24 3C2 p 55 • 27 Does size of battery make a difference? • 32 Looking at Christmas Tree Bulb • 42 3D1 p 57 • 54 3D2 p 59 • 70 3A3 p 75 • 89 3D3 p 63 • 94 3E1 p 65 • 102 3E2 p 67 • 112 5A2 p 93 • 122 How a Storage Battery is Made • 124 How 100 Bulb Christmas Tree Cord is Connected • 126 How Can You Make a Switch • 134 5B2 p 95 • 136 Wiring a House

  3. A. How Many Ways Can You Make A Light Bulb Light?3A1 p 45 Dry cell In Box (Flashlight Bulb, Wire)

  4. 1. Using your materials, make your bulb light. • (Be careful ... If you begin to feel heat in the wire remove the wire from the battery.)

  5. 2. How many different ways can you get your bulb to light?

  6. 3. Draw pictures below of the ways that you got the bulb to light and ways that you did not get it to light. • Ways Bulb Lights • Ways Bulb Did Not Light

  7. Making a Battery Holder

  8. Making a Battery Holder

  9. Making a Battery Holder

  10. Making a Battery Holder

  11. Will it light?

  12. Will it light?

  13. Will it light?

  14. Will it light?

  15. Will it light?

  16. Will it light?

  17. Will it light?

  18. Will it light?

  19. Will it light?

  20. Will it light?

  21. Will it light?

  22. Will it light?

  23. 1. Using your materials, make the bulb light when it is not touching the battery. • 2. Draw wires on the picture below to show how you got the bulb to light.

  24. 3. Where must the wire(s) touch the battery to light the bulb?

  25. 4. Where must the wire(s) touch the bulb for it to light?

  26. 5. Make a rule about lighting the bulb using your observations.

  27. Look at top andbottom of a battery to see where good contact can be made.

  28. Items in Plastic Bag • 1. bulb holder - 2 • 2. battery holder - 1 • 3. Christmas bulbs - 4 • 4. Green wire with bare ends - 4 • 5. brad fasteners - 4 • 6. small paper clips - 3 • 7. envelope with 5 or 6 clip leads • 8. flashlight bulbs – 2 • 9. 2“ x 2“ inch cardboard - 2 10. D-Cell battery • 11. 20-cm copper conducting wires – 2

  29. C. How Can You Explain the Mystery Circuit?3C1 p 53 Dry cell Container with bulb and wire

  30. 1. Test your bulb and battery to make sure that the bulb will light. Page 4

  31. 2. Look at the circuit in the drawing below. Page 4

  32. 3. The wire is touching the two special places on the bulb. Predict whether the bulb will light. Explain why. Page 4

  33. 4. Use your materials to see if the bulb will light. Page 4

  34. 5. What did you observe? • 6. Explain what happened? Page 4

  35. 7. Identify the path the electricity travels on the diagram above. Page 4

  36. Page 4

  37. D. Where Does the Current Go?3C2 p 55 Dry cell Bulb and wires Bulb holder Battery holder

  38. 4. Try it. 2. Make sure your bulb lights. 6. Explain what happened? 5. What happened? • 3. What will happen when a wire is placed between wires 1 & 2? Non-covered wire Non-covered wire Page 4

  39. 6. What do you predict will happen if you touch the end of wire 1 with the end of wire 2 outside the bulb holder? Page 4

  40. E. DOES THE SIZE OF THE BATTERY CHANGE THE BRIGHTNESS OF THE BULB? • batteries - D, C, AA, AAA, • Ni-Cd, NIMH, • Polaroid Camera • box of old batteries • Christmas tree bulb Page 2

  41. 1. Observe the brightness of the bulb when connected to the C-cell battery. Page 2

  42. 2. How do you think the brightness of the bulb when connected to the C-cell will compare to connecting the bulb to the D-cell. Predict, try it, and then write what you found. Page 2

  43. 3. What do you observe about the brightness of the bulb when connected to other batteries? Make comparisons to the brightness of the bulb when connected to a D-cell? • AA • AAA • Ni-Cd • NiMH Page 2

  44. 4. Explain why the brightness of the bulb was the same for different batteries. Page 2

  45. 5. Explain why the brightness of the bulb was different for different batteries. Page 2

  46. F. HOW DOES A CHRISTMAS TREE BULB COMPARE TO THE BULB YOU HAVE BEEN USING • flashlight bulb Christmas tree bulb Page 1

  47. 1. Examine and then draw what you see when you look at the inside the #13 bulb. • 2. Show 7 ½ watt bulbs Page 1

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