Chapter 23: Sound Waves - Science Mcqs for Grade 7


Q.  Sound loses more energy in

a. air
b. vacuum
c. liquid
d. solid


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  If frequency increases,
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MCQs:  Measure of decibel starts from
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MCQs:  The mixture of high and low sounds is called a
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MCQs:  Echoes are formed when sound
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MCQs:  A strong beam of ultrasound can melt even a
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MCQs:  Sound can travel through air because
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MCQs:  Some fishing boats use echo to
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MCQs:  Most of the sounds around world are
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MCQs:  Sounds of birds and animals are
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MCQs:  The part of sound wave where air pressure is greater, is known as
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MCQs:  When sound travels, it
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MCQs:  An example to demonstrate the effect of sound in vacuum is
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