Question

E. Give reasons for the following.
1. A tuning fork producing sound will stop producing sound when you touch it.
2. Sound cannot pass through vacuum.
3. Thin strings in a guitar give a higher pitch than a thick string.
4. The sound produced by a large drum is louder than that of a small one.
5. If the same note is being played on two different musical instruments, our ears can
distinguish between the two sounds.
6. Tractor drivers, factory workers, and others who are exposed to loud noise wear earmuffs.​

Answer 1

Answer:

1.Sound waves are produced by vibrating objects. ... When the tuning fork is hit with a rubber hammer, the tines begin to vibrate. The back and forth vibration of the tines produce disturbances of surrounding air molecules.

2.Sound waves are travelling vibrations of particles in media such as air, water or metal. So it stands to reason that they cannot travel through empty space, where there are no atoms or molecules to vibrate.

3.A large drum produces louder sound than a small drum because, the large drum has more vibrating area while the small drum produce less sound as it has small vibrating area. Thus the loudness of an object depends upon the area of the vibrating body.

4.The reason the same musical note sounds different when played on various instruments is because the harmonic overtones and envelope of each instrument is unique. When a frequency is played, other frequencies, called harmonics, are created.

5.Tractor driver, factory workers and others who are exposed to loud noise should wear ear protection such as earmuffs.