Louder sound can cause damage to

The number of vibrations in a second is called

A. pitch

B. frequency

C. amplitude

D. infrasound

If we tighten the strings of instrument the pitch will be

A. higher

B. lower

C. constant

D. no pitch

Sound having frequencies above 20000Hz are called

A. infrasound

B. ultrasound

C. mega sound

D. micro sound

The higher the frequency the greater will be

A. pitch

B. loudness

C. amplitude

D. infrasound

Sound travels at speed of 1482m/s in

A. air

B. water

C. steel

D. water