Class 7 Science MCQs - Chapter 24
Sound Waves Quiz Questions and Answers PDF - 11
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Sound Waves Questions & Answers PDF Download: MCQ Quiz 11
MCQ 51: Sounds of birds and animals are
- artificial
- natural
- man made
- made electronically
MCQ 52: Compared to drum, the vibration of a whistle is
- quite low
- high
- same
- of very high pitch
MCQ 53: The part of sound wave where air pressure is greater, is known as
- compression
- rarefaction
- consolation
- expansion
MCQ 54: When sound travels, it
- absorbs energy
- gains energy
- loses energy
- transfers energy
MCQ 55: Musical instruments are so designed that they could produce
- musical notes
- pitch
- rhythm
- musical beat
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