Chapter 23: Sound Waves - Science Mcqs for Grade 7


Q.  Sounds of vehicles, aircrafts and machines are called

a. artificial sounds
b. natural sounds
c. noise
d. normal sounds


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Loud noise can
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MCQs:  The third effecter of sound created by vibrating strings is
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MCQs:  Sound is made louder by increasing
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MCQs:  Trombone is also an example of
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MCQs:  Sound is a form of
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MCQs:  The loudness of sound is also known as
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MCQs:  The more dense the liquid, the
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MCQs:  Singing and talking are the
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MCQs:  In large empty rooms, even a click keeps on
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MCQs:  Sounds of thunder and horn of lorries are known as
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MCQs:  Sound is created by our vocal cord due to
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MCQs:  The normal value of decibel that our ears can detect is
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MCQs:  As compare to humans, bats can hear sounds only with
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MCQs:  In one wavelength, wave passes through
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MCQs:  If frequency is high, the peak of the waves would be
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MCQs:  If frequency increases,
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MCQs:  The organs of a human that detect sounds are
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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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