Speed Of Sound In Rubber Band

Given that its density is far greater than air however the speed of sound in.

Speed of sound in rubber band.

1545 butyl rubber carbon 100 40. By increasing the tension we increase the wave speed and the pitch of the sound made when the string is plucked. Differences in pitch are caused by the speed of vibrations. The vibration causes the sound.

Speed of sound in thin long solid bars is given by young s modulus for rubber y 4 10 n m and density ρ 1 2 or so. You held on to the end of the string and spun the bee around. The rubber band in turn pushes on the nearby air making it vibrate. You should be able to see the difference in the movement of the string in the two trials.

Repeat the experiment and look closely. This is much smaller than the speed of sound in air which is 340 m sec at atmospheric pressure temperature. 1522 sea water at 30c. The speed of sound is also different for different types of solids liquids and gases.

To make a softer sound don t pull the string or rubber band back as far. You can actually see the increase in vibration strength. It was a simple cardboard bee a rubber band and a string. 1450 sea water at 20c.

Sea water at 0c. When i saw the instructables rubber band contest i remembered a toy that my grandparents had that fascinated me. The shear modulus of a string or a rubber band is equal to the tension. As it picked up speed it would start buzzing.

It s a little annoying if one person has to hold the rubber. Speed of sound m sec. One of the reasons for this is that the elastic properties are different for different materials. Since the vibration causes the sound when the vibration stops the rubber band stops moving the sound also stops.

One would expect the very small elastic constant to make the speed of sound in rubber far less than other solids. Even though you can t see the air vibrating your ear can hear it.