Speed Of Sound In Rubber Band

If we increase the density of the string we decrease the wave speed and the pitch of the sound.

Speed of sound in rubber band.

Elastic properties relate to the tendency of a material to maintain its shape and not deform when a force is applied to it. One would expect the very small elastic constant to make the speed of sound in rubber far less than other solids. One of the reasons for this is that the elastic properties are different for different materials. Given that its density is far greater than air however the speed of sound in.

Differences in pitch are caused by the speed of vibrations. As it picked up speed it would start buzzing. 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. To make a softer sound don t pull the string or rubber band back as far.

When i saw the instructables rubber band contest i remembered a toy that my grandparents had that fascinated me. The speed of sound is also different for different types of solids liquids and gases. You held on to the end of the string and spun the bee around. Speed of sound m sec.

It s a little annoying if one person has to hold the rubber. The rubber band in turn pushes on the nearby air making it vibrate. Since the vibration causes the sound when the vibration stops the rubber band stops moving the sound also stops. You can actually see the increase in vibration strength.

Even though you can t see the air vibrating your ear can hear it. 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. You should be able to see the difference in the movement of the string in the two trials.

Speed of sound in rubber using the above formula 57 7 m sec. Repeat the experiment and look closely. Sea water at 0c. It was a simple cardboard bee a rubber band and a string.

The shear modulus of a string or a rubber band is equal to the tension. 1522 sea water at 30c.