Ch05

2,214 views
2,131 views

Published on

Published in: Education, Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
2,214
On SlideShare
0
From Embeds
0
Number of Embeds
335
Actions
Shares
0
Downloads
138
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Ch05

  1. 1. Electricity and Magnetism Chapter 5 Great Idea : Electricity and magnetism are two different aspects of one force—the electromagnetic force
  2. 2. Chapter Outline <ul><li>Nature’s Other Forces </li></ul><ul><li>Magnetism </li></ul><ul><li>Batteries and Electric Circuits </li></ul><ul><li>Connections Between Electricity and Magnetism </li></ul><ul><li>Electrical Effects from Magnetism </li></ul>
  3. 3. Nature’s Other Forces
  4. 4. Static Electricity <ul><li>Newton’s first law </li></ul><ul><li>Greeks’ observations </li></ul><ul><ul><li>Electrical charge </li></ul></ul><ul><li>Electricity </li></ul><ul><ul><li>Static electricity </li></ul></ul><ul><ul><li>Properties </li></ul></ul>
  5. 5. Static Electricity
  6. 6. Two Kinds of Electrical Charges
  7. 7. Science in the Making <ul><li>Benjamin Franklin and the electrical charge </li></ul>
  8. 8. The Movement of Electrons <ul><li>Atomic structure </li></ul><ul><li>Electrical charge </li></ul><ul><ul><li>Positive </li></ul></ul><ul><ul><li>Negative </li></ul></ul><ul><li>Behavior </li></ul>
  9. 9. Electrons Removed from Hair
  10. 10. Coulomb’s Law <ul><li>Coulomb </li></ul><ul><ul><li>Experiments </li></ul></ul><ul><li>Coulomb’s Law: </li></ul><ul><ul><li>Force is related to charge and distance </li></ul></ul><ul><li>1 Coulomb = 6.3 x 10 18 electrons </li></ul>
  11. 11. The Electrical Field <ul><li>The force felt by a charge located at a particular point </li></ul>
  12. 12. An Electrical Field Surrounding a Positive Charge
  13. 13. Magnetism
  14. 14. Magnetism <ul><li>Magnetic force </li></ul><ul><li>William Gilbert </li></ul><ul><ul><li>Dipole magnet </li></ul></ul><ul><ul><li>Like repels, unlike attracts </li></ul></ul><ul><li>Magnetic field </li></ul>
  15. 15. A Compass Needle and Earth
  16. 16. The Curving Lines of a Magnetic Field
  17. 17. A Bar Magnet and Its Dipole Field
  18. 18. The Aurora Borealis
  19. 19. The Science of Life <ul><li>Magnetic navigation </li></ul>
  20. 20. Pairs of Poles <ul><li>No isolated magnetic poles </li></ul>
  21. 21. Batteries and Electric Circuits
  22. 22. The Science of Life <ul><li>Luigi Galvani and life’s electrical force </li></ul>
  23. 23. What was behind Frankenstein ?
  24. 24. Batteries and Electrical Current <ul><li>Electrical current </li></ul><ul><ul><li>Flow of charged particles </li></ul></ul><ul><li>Battery </li></ul><ul><ul><li>Alessandro Volta </li></ul></ul><ul><ul><li>Converts chemical energy to kinetic energy </li></ul></ul>
  25. 25. Electric Circuits <ul><li>Electric circuit </li></ul><ul><ul><li>Unbroken path of material carrying electricity </li></ul></ul><ul><ul><li>Electrical conductor </li></ul></ul><ul><li>Circuit </li></ul><ul><ul><li>Source </li></ul></ul><ul><ul><li>Closed path </li></ul></ul><ul><ul><li>Device to use electrical energy </li></ul></ul>
  26. 26. Electrical Circuits
  27. 27. Multimeter
  28. 28. Ohm’s Law <ul><li>Flow of electricity </li></ul><ul><ul><li>Ampere </li></ul></ul><ul><ul><ul><li>1 amp = 1 coulomb/sec </li></ul></ul></ul><ul><ul><li>Voltage </li></ul></ul><ul><ul><ul><li>Amount of power in circuit </li></ul></ul></ul><ul><ul><li>Electrical resistance </li></ul></ul><ul><ul><ul><li>Ohm </li></ul></ul></ul>
  29. 29. Ohm’s Law – cont. <ul><li>Ohm’s Law </li></ul><ul><ul><li>Current is directly proportional to voltage and inversely proportional to resistance </li></ul></ul><ul><ul><li>Equation: V = I x R </li></ul></ul><ul><li>Load </li></ul><ul><ul><li>Equation: P = I x V </li></ul></ul>
  30. 30. Lightning Strikes
  31. 31. Terms Relating to Electric Currents
  32. 32. The Science of Life <ul><li>The propagation of nerve signals </li></ul>
  33. 33. Two Kinds of Electric Circuits <ul><li>Series circuit vs. parallel circuit </li></ul>
  34. 34. Connections between Electricity and Magnetism
  35. 35. Magnetic Effects from Electricity <ul><li>Oersted </li></ul><ul><ul><li>Magnetic field created by electrical charges </li></ul></ul><ul><li>Electromagnet </li></ul><ul><li>Magnetic monopole </li></ul><ul><ul><li>Do not exist </li></ul></ul><ul><ul><li>Arrangement of electrical charges </li></ul></ul>
  36. 36. Schematic Drawing of an Electromagnet
  37. 37. Electromagnets inside the Disk Drive of a Computer
  38. 38. Technology <ul><li>The Electric Motor </li></ul>
  39. 39. The Science of Life <ul><li>Magnetic resonance </li></ul>
  40. 40. Electrical Effects from Magnetism
  41. 41. Electrical Effects from Magnetism <ul><li>Michael Faraday </li></ul><ul><ul><li>Electromagnetic induction </li></ul></ul><ul><ul><li>Electrical fields and currents can be produced by changing magnetic fields </li></ul></ul><ul><li>Electric generator </li></ul>
  42. 42. Electromagnetic Induction
  43. 43. Electric Generator
  44. 44. Science in the Making <ul><li>Michael Faraday </li></ul>

×