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ICSE-SOUND-EXERCISE -7(A)
- What are mechanical waves ?
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- Define the following terms in relation to a wave : amplitude
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- Define the following terms in relation to a wave : frequency
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- Define the following terms in relation to a wave : wavelength
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- Define the following terms in relation to a wave : wave velocity.
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- A wave passes from one medium to another medium. Mention one property ...
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- A wave passes from one medium to another medium. Mention one property ...
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- State two factors on which the speed of a wave travelling in a medium ...
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- State two differences between light and sound waves.
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- What do you mean by reflection of sound ? State one condition for the ...
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- What is meant by an echo ? State two conditions necessary for an echo ...
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- A man is standing at a distance of 12 m from a cliff. Will he be able ...
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- State two applications of echo.
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- Explain how the speed of sound can be determined by the method of echo...
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- State the use of echo by a bat, dolphin and fisherman.
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- How do bats avoid obstacles in their way, when in flight?
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- What is meant by sound ranging ? Give one use of sound ranging,
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- Name the waves used for sound ranging. State one reason for their use....
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- What is the principle on which SONAR is based ?
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- State the use of echo in medical field.
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