You can make a rig similar to the one shown in the
picture to do an experiment on resonance.
This is how the experiment works:
- Each rod with a ball on top has its own natural
frequency. You can see each one vibrating at its natural frequency
by pulling the ball back and watching how it sways to and fro.
- You can make each ball resonate, one at a time, by pushing the
slider to and fro at the same frequency as the
natural frequency of the ball you are interested in. You should
be able to make one ball vibrate strongly while the other two
hardly move at all.
Make your own frame and have fun experimenting with it!
Watch a Video Clip of the experiment. View
on line or Download
You need Real Player installed on your computer to play these videos.
Visit the help pages to find out how to get a free copy.
Get advice on how best to view the video