This year for my science fair my topic is radio waves. I need to think of an experiment I should do that includes the purpose, questions, hypothesis, materials, variables, procedure, and results. I was thinking for my experiment to try to jam a radio frequency but I read somewhere that it was illegal. So does anyone have any suggestions on what my experiment should be on the topic of radio waves?
2007-03-06 12:38:54 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
If you can find it, read Hertz's original research. He guessed that the waves (we know now were radio waves, or, more generally, electromagnetic waves -- different name, same thing) he found in his laboratory were somehow related to light. That was his hypothesis. So, his experiment was to treat it as light and see what happened. Could you reflect it, like light? Worked fine. Could you polarize it, like light? Yup. For polarization, get a portable radio with a "whip" antenna that gets FM. The signal is transmitted vertically polarized, so when you turn the radio sideways so that its antenna is horizontal, you should have a big decrease in signal. Look up Hertz's experiments and see what you can use.
2007-03-07 10:08:33 · answer #1 · answered by ZORCH 6 · 0⤊ 0⤋
Why don't you find out what types of antennas work best in which situations? For example, a dipole works much differently and has a different "spread" than a yagi antenna.
2007-03-06 23:00:09 · answer #2 · answered by Zhuo Zi 3 · 0⤊ 0⤋