Tuesday, July 27, 2010

Physics Form Five: Chapter 4 - Experiment on Cathode Ray Properties

This video is very useful especially for those students who do not have a chance to do experiment in school laboratory. Inside this video shows:
  • how cathode ray travels in a straight line
  • how a green shadow of Maltese cross formed.
  • how kinetic energy of electrons convert to light energy.
  • how magnetic field deflects cathode ray. (use Left Hand Fleming Rule to determine the direction of force)
  • how increasing voltages affect current and number of electrons emitted.
Enjoy and appreciate this demonstrations!

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