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Please come to the front of the lecture hall to see the demonstrations.

Join Dr. Richard E. Berg in this four-hour video collection featuring over 70 experiments in acoustics. Learn about vibrations, waves, and sound in 29 titled segments. Get your two-DVD set for only $20 with a $10 discount for direct cash sales. Inquire after the program.

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Please come to the front of the lecture hall to see the demonstrations.

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  1. Please come to the frontof the lecture hallto see thedemonstrations.

  2. 0 PleasebeSeated

  3. from Lecture-Demonstration 0 Now on a two-DVD set: The classic four-hour video collection: Demonstrations in Acoustics for only $20. $10 discount for direct cash sales. Inquire in front after program. Dr. Richard E. Berg, demonstrating over 70 experiments, in 29 titled segments, covering vibrations, waves and sound.

  4. 0 Physics is Phun e-mail list Go to the Physics is Phun web site and click on “mailing list” link near top of page

  5. Link to:SUMMER AND OTHER PROGRAMSFPR PRE-COLLEGE STUDENTShttp://www.physics.umd.edu/lecdem/outreach/summerprogs.htm

  6. 0 Electricity and Magnetism Physics is Phun January 2009

  7. 0 Topics: Electrostatics Magnetostatics Laws of Electromagnetism

  8. 0 Electrostatics

  9. 0

  10. 0 Pity the poor neutron;he thought he was a protonbut he wasn’t positive.

  11. 0 Siphon “Triboelectricity” Quantum mechanical tunneling

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  13. 0 Charging by Induction

  14. 0 Polarization in the Atom Electric forces on polar molecule Polar and Non-Polar Liquids(a) and (b) Electrostatic Force – Moving Lumber

  15. 0 Van de Graaff electrostatic generator:simulates lightningfrom cloud to ground

  16. 0 Lightning (1)

  17. 0 Lightning (2)

  18. 0 Lightning (3)

  19. 0 Lightning (4)

  20. 0 Lightning (5)

  21. 0 Lightning (6)

  22. Lightning Video compliments of Tom A. Warner, ztresearch.com 640x480 pixels 7,200 images per second 0.15 seconds recording time Visual aspects: -stepped leaders -dart leaders -return strokes -continuing current

  23. 0 Lightning RodSimulator Lightning striking the Empire State Building

  24. 0 Magnetostatics

  25. 0 Lodestone

  26. 0 Magnet and Magnetic Field

  27. 0 Broken Magnet

  28. 0 Relationsbetweenelectricity andmagnetism

  29. 0 Ampere’s Law: Electric currents create magnetic fields.

  30. 0

  31. 0

  32. 0 Lorentz Force: Charges moving in a magnetic field experience an electromagnetic force.

  33. 0

  34. 0

  35. 0 Faraday’s Law of Induction: A changing magnetic field creates an electric field.

  36. 0

  37. 0

  38. 0 Lenz’s Law: Induced electric currents act so as to oppose the motion that caused them.

  39. 0

  40. 0 Magnetsdroppedthroughtube

  41. 0 Magnetic Levitation

  42. 0 Train Levitation Yamanashi test line Maglev site in Japan Magnetic Levitation Trains Photographs compliments of: High Speed Rail (HSR), by Oliver Keating http://www.o-keating.com/hsr/

  43. 0 Maglev Train “Tracks” Train moving on Guideway at 500 mph The Yamanashi Guideway for the MLX01

  44. 0 Electromagnetic Can Crusher Video showing explanation a. current from capacitor creates magnetic field b. increasing magnetic field induces electric field c. electric field moves electrons around can d. electrons feel inward and separation forces e. can cut in two and pushed apart Slow motion of can crusher at Weslyan University Compliments of Vacek Miglus

  45. 0 Cyclotron Dee discharge

  46. 0 Cyclotron ion source

  47. The EndSee you in March! 0 We are on the web at http://www.physics.umd.edu/lecdem/ Animated Gifs compliments of bellsnwhistles.com

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