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8th CBSE
IMPORTANT
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The audible frequency range for the human ear is 20 Hz to 20,000 Hz.

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Important Questions on Sound

EASY
8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NUT Cracker>Q III
Noise pollution can be minimised.
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8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NUT Cracker>Q III
Unpleasant sound is called vibration.
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8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NUT Cracker>Q III
We can hear the sound of all vibrating bodies.
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8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NUT Cracker>Q III
Ultrasonic sounds are those that have frequencies lower than 15 Hz.
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8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NUT Cracker>Q III
Sound produced by the vibrations of an object is called music.
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8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NUT Cracker>Q III
A tuning fork helps to produce noise for experiments in a laboratory.
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8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NUT Cracker>Q III
Infrasonic waves are high-frequency sounds.
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8th CBSE
IMPORTANT
Study Mate Science Class 8>Chapter 13 - Sound>NUT Cracker>Q III
A feeble sound means a small amplitude and a high pitch.