Nope... posted by Spongerider (Now PFC) on February 25, 2003 at 12:48 PM
Message
I see that you're trying to explain resonance, but different objects will resonate at different frequencies.
In your example, the longer rubber stick's natural frequency will cause it to resonate more easily when you shake it with your hand. But that's because your hand moves slow and the longer length of the rod will coincide better with the frequency that you are putting into the stick.
If you were to shake the sticks with something else that vibrated faster, you'd find that at certain frequencies the shorter stick would resonate more, and at other frequencies the longer stick would resonate more. You need to match the stiffness/resonant frequency of the part you are using to the vibrations that it will be experiencing.