Speed Of Sound In Rubber Band

As it picked up speed it would start buzzing.

Speed of sound in rubber band. The rubber band in turn pushes on the nearby air making it vibrate. The vibration causes the sound. 1522 sea water at 30c. Speed of sound in rubber using the above formula 57 7 m sec.

Even though you can t see the air vibrating your ear can hear it. To make a softer sound don t pull the string or rubber band back as far. Since the vibration causes the sound when the vibration stops the rubber band stops moving the sound also stops. This is much smaller than the speed of sound in air which is 340 m sec at atmospheric pressure temperature.

The shear modulus of a string or a rubber band is equal to the tension. You held on to the end of the string and spun the bee around. One would expect the very small elastic constant to make the speed of sound in rubber far less than other solids. 1450 sea water at 20c.

When i saw the instructables rubber band contest i remembered a toy that my grandparents had that fascinated me. Differences in pitch are caused by the speed of vibrations. You should be able to see the difference in the movement of the string in the two trials. Repeat the experiment and look closely.

Sea water at 0c. 1545 butyl rubber carbon 100 40. Speed of sound m sec. One of the reasons for this is that the elastic properties are different for different materials.

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. The speed of sound is also different for different types of solids liquids and gases. By increasing the tension we increase the wave speed and the pitch of the sound made when the string is plucked. It s a little annoying if one person has to hold the rubber.

If we increase the density of the string we decrease the wave speed and the pitch of the sound. It was a simple cardboard bee a rubber band and a string.