The negatively charged electrons are attracted to the positive pole of a magnet, and repelled by the negative pole of a magnet.
Video for Windows Quicktime
Cathode The metal electrode from which the electrons originate. The cathode is
the negative electrode.
Anode The metal electrode toward which the electrons travel. The anode is
the positive electrode.
Glass tube A piece of glass that connects the cathode ray tube to the stand.
Stand A wooden stand that supports the cathode ray tube.
Alligator clip An alligator clip that connects the metal electrode to the power
source.
Tube The cathode ray tube is a sealed glass tube from which most of the air has been removed.
The tube won't work if it is full of air. In order to induce the metal cathode to eject
electrons, a strong electrical current is required. So a cathode ray tube won't work
without a power source. A thin piece of metal coated with a material that emits light when
struck by electrons is sealed inside the tube to detect the path of the electrons.
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