Loudness

Loudness is directly proportional to amplitude

• True

• False

Greater the amplitude, ____ sound is produced

when do you hear a loud sound ?

When hitting a drum gently with pencil

When hitting a drum hard with a stick

• When hitting a Drum hard with stick

• When hitting a drum gently with sticks

• The sound is equal

When a body vibrates with greater amplitude , it sends very less amount of energy.

• True

• False

What is the unit of Loudness

• Hertz

• Decibel

• Watts

• Lambda

• Second

Loudness increases with the increase in distance

• True

• False

The unit of loudness is named after whom?

• Thomas Alva Edison

• Alexander Graham Bel

• Johannes Gutenberg

When the loudness becomes 100 times, its level is ___

• 100 dB

• 50 dB

• 20 dB

• 10 dB

The Loudness of a sound is directly proportional to the square of _____

What is considered to be the zero level of Sound in decibal?

• 0 kHz

• 1 kHz