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Important Questions on Sound

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Science>Physics>Sound>Range of Hearing
Which of the following animal produce ultrasound?
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Science>Physics>Sound>Range of Hearing
How can we know from a distance that a car is approaching us?
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Science>Physics>Sound>Range of Hearing
Name the sound waves used by bats while flying in the dark.
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Science>Physics>Sound>Range of Hearing
Name two animals which can hear sounds with frequency beyond 20000 Hz.
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Science>Physics>Sound>Range of Hearing
Explain how a bat catches its prey in the dark.
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Science>Physics>Sound>Range of Hearing
A sound appears to be much louder inside a hall than in an open space. Give reasons.
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Science>Physics>Sound>Range of Hearing
Which wave property determines the loudness of a sound?
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Science>Physics>Sound>Range of Hearing
Which of these use the ultrasound range?
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Science>Physics>Sound>Range of Hearing
The loudness of sound is measured in terms of
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Science>Physics>Sound>Range of Hearing
How is loudness related to amplitude?
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Science>Physics>Sound>Range of Hearing
How is the loudness of a sound measured?
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Science>Physics>Sound>Range of Hearing
Which animal does not use the method of echolocation?
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Science>Physics>Sound>Range of Hearing

Rupesh was studying for his exams. His neighbour Berry was playing tabla. Rupesh was getting disturbed. He asked Berry to play tabla softly. Berry followed his advice. Why is soft sound produced when we strike a drum softly?

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Science>Physics>Sound>Range of Hearing
What is infrasound? Name some animals communicating through the infrasound.
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Science>Physics>Sound>Range of Hearing
Although sound is produced due to repeated vibratory motion yet a vibrating pendulum does not produce sound? Why?
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Science>Physics>Sound>Range of Hearing
How is loudness related to the distance between the listener and the source?
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Science>Physics>Sound>Range of Hearing
A large drum produces a louder sound than a small drum. Give reasons.
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Science>Physics>Sound>Range of Hearing
Sounds of frequencies below 20 Hz are called ____________ sound.
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Science>Physics>Sound>Range of Hearing
The intensity of 60 dB sound corresponds to
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Science>Physics>Sound>Range of Hearing

Give reasons for the following:

We cannot hear any sound on vibrating our hands forward and backwards.