i. Sound is generated by the rhythmic ……………. of any object. ii. The frequency of sound is measured in …………….. .

Question

Fill in the blanks:

i. Sound is generated by the rhythmic ……………. of any object.

ii. The frequency of sound is measured in …………….. .

iii. If …………….. of sound is decreased its loudness also decreases.

iv. A medium is necessary for …………… of sound.

Answer 1

i. vibrations

ii. Hertz (Hz)

iii. intensity

iv. generation