Sound-1

Time taken by an object to complete one oscillation is called_____________.

Loudness is determined by the ________________ of vibration.

The unit of frequency is _____________.

Answer. hertz (Hz)Unwanted sound is called._______________

Shrillness of a sound is determined by the ___________ of vibration.

Higher the_________________ of vibration, the higher is the pitch, and shriller is the sound.

Sound which is pleasing to the ear is called______________ sound.

Sound cannot travel in vacuum.

• True

• False

The number of oscillations per second of a vibrating object is called its time period.

• True

• False

If the amplitude of vibration is large, sound is feeble.

• True

• False