1. Electricity and magnetism are two aspects of the same electromagnetic force. 2. Batteries and electric circuits produce electrical currents through the flow of charged particles, and electromagnets can be created by arranging electrical charges in a coil around an iron core. 3. Changing magnetic fields, through a process called electromagnetic induction, can induce electric currents and voltages in conductors - a principle that powers electric generators and motors.

1. Electricity and Magnetism Chapter 5 Great Idea : Electricity and magnetism are two different aspects of one force—the electromagnetic force

2. Chapter Outline Nature’s Other Forces Magnetism Batteries and Electric Circuits Connections Between Electricity and Magnetism Electrical Effects from Magnetism

3. Nature’s Other Forces

4. Static Electricity Newton’s first law Greeks’ observations Electrical charge Electricity Static electricity Properties

5. Static Electricity

6. Two Kinds of Electrical Charges

7. Science in the Making Benjamin Franklin and the electrical charge

8. The Movement of Electrons Atomic structure Electrical charge Positive Negative Behavior

9. Electrons Removed from Hair

10. Coulomb’s Law Coulomb Experiments Coulomb’s Law: Force is related to charge and distance 1 Coulomb = 6.3 x 10 18 electrons

11. The Electrical Field The force felt by a charge located at a particular point

12. An Electrical Field Surrounding a Positive Charge

13. Magnetism

14. Magnetism Magnetic force William Gilbert Dipole magnet Like repels, unlike attracts Magnetic field

15. A Compass Needle and Earth

16. The Curving Lines of a Magnetic Field

17. A Bar Magnet and Its Dipole Field

18. The Aurora Borealis

19. The Science of Life Magnetic navigation

20. Pairs of Poles No isolated magnetic poles

21. Batteries and Electric Circuits

22. The Science of Life Luigi Galvani and life’s electrical force

23. What was behind Frankenstein ?

24. Batteries and Electrical Current Electrical current Flow of charged particles Battery Alessandro Volta Converts chemical energy to kinetic energy

25. Electric Circuits Electric circuit Unbroken path of material carrying electricity Electrical conductor Circuit Source Closed path Device to use electrical energy

26. Electrical Circuits

27. Multimeter

28. Ohm’s Law Flow of electricity Ampere 1 amp = 1 coulomb/sec Voltage Amount of power in circuit Electrical resistance Ohm

29. Ohm’s Law – cont. Ohm’s Law Current is directly proportional to voltage and inversely proportional to resistance Equation: V = I x R Load Equation: P = I x V

30. Lightning Strikes

31. Terms Relating to Electric Currents

32. The Science of Life The propagation of nerve signals

33. Two Kinds of Electric Circuits Series circuit vs. parallel circuit

34. Connections between Electricity and Magnetism

35. Magnetic Effects from Electricity Oersted Magnetic field created by electrical charges Electromagnet Magnetic monopole Do not exist Arrangement of electrical charges

36. Schematic Drawing of an Electromagnet

37. Electromagnets inside the Disk Drive of a Computer

38. Technology The Electric Motor

39. The Science of Life Magnetic resonance

40. Electrical Effects from Magnetism

41. Electrical Effects from Magnetism Michael Faraday Electromagnetic induction Electrical fields and currents can be produced by changing magnetic fields Electric generator

42. Electromagnetic Induction

43. Electric Generator

44. Science in the Making Michael Faraday