Chapter 10, Problem 13STP

To determine

To Explain:The way placing hand on a bell that has just been rung stops the sound.

Explanation of Solution

Introduction:

Sound is a form of energy and is produced by vibrations in the molecules of the medium. The sound waves are mechanical waves and vibration is produced as the sound travels.

Sound produces sensation in the ear, and is produced by vibration. When the vibration stops, the object will stop producing sound. As such, when a hand is placed in the ringing bell, the vibrations in the bell will be stopped by the hand. Hence the sound will stop.

Conclusion:

Hence, by placing a hand in a ringing bell, the sound will stop.