Science M C Q

Bats produce ……………….. sound during screaming.

……………….. instruments produce a specific sound when they are struck, scrapped or clashed together.

The time taken for one complete vibration is called its ………………..

The voices of men, women and children differ because of difference in their ………………..

The hearing range of human ear is ………………..

Pitch of sound is determined by its ………………..

Unwanted sounds are called ………………..

Frequency is expressed in ………………..

Vibrations in a body produce ………………..

Sound cannot travel through ………………..

Which of the following may be caused by noise?

If the amplitude and frequency of a sound wave are increased, which of the following is true?

The range of audible frequency for the human ear is

Noise is produced by

Find the odd one out.

What kind of musical instrument is a sitar?

The amplitude of the sound wave decides its

Which of the following are the characteristics of vibrations?
1. Frequency
2. Time period
3. Pitch
4. Loudness

Sound waves travel very fast in