Sound Quiz

The voice box is also called

• vocal cords

• heart

• larynx

• pharynx

Pitch of a sound is determined by its

• Frequency

• Speed

• Amplitude

• Loudness

The frequency of infrasonic sound is

• Less than 20 Hz

• 100 Hz

• More than 20 Hz

• More than 20,000 Hz

A pendulum oscillates 20 times in 4 seconds. Find its time period

• 5 sec

• 0.5 sec

• 0.2 sec

• 0.1 sec

The number of vibrations made by a vibrating body in one second

• Noise

• Loudness

• Pitch

• Frequency

What is the minimum decibel value where sound over prolonged period can cause ear damage?

• 60 dB

• 40 dB

• 80 dB

• 120 dB

Voice of a man is heavier compared to woman because

• Male has more vocal cords

• Male vocal cord is longer

• Male vocal cord is shorter

• None of these

Tabla is a

• Vocal instrument

• Percussion instrument

• String instrument

• Not an instrument

Speed of sound is maximum in

• Solids

• Liquids

• Gases

Man cannot hear certain sounds emitted by bats.

• True

• False