Question

Write an activity to show that sound is produced by vibrating objects? Draw diagram for explanation.

Answer 1

Sound is a form of energy that isproduced a vibrating object. Thevibrating object moves back and forth and causes nearby air molecules to vibrate. Also the air molecules that are vibratinginfluence other air molecules tovibrate.

Answer 2

Activity for vibrating objects to produce sound:

1. Place a loud speaker in the one end of the room.
2. Place a person in the other end of the room.
3. Switch on the loudspeaker and play a music with good bass (sound).
4. When the sound is high pitched it causes disruption in the air molecules and produces high pressure.
5. When the sound is low pitched it causes less disruption in the air molecules and produces low pressure.
6. This high and low pressure produced in the air molecules makes it layers of high and low pressure.
7. This helps in propagation of sound from one medium to another medium.

The image for loudspeaker and ear of the person is given in the image below.