Class 7 Science MCQs - Chapter 23
Sound Waves Trivia Questions & Answers PDF Download - 20
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Sound Waves Test Questions and Answers PDF Download: MCQ 20
All musical instruments make
- notes
- rhythm
- beat
- vibration
The pitch of every note is a certain
- wavelength
- amplitude
- frequency
- phase
"Ultrasound" can
- break up kidney stones
- destroy the kidney stones
- stimulate the growth of kidney stones
- clot blood in the kidneys
The denser the solid, the
- more the speed of sound
- less the speed of sound
- more clear the sound
- less clear the sound
The speed of sound in wood is
- 2000 m/s
- 3000 m/s
- 4000 m/s
- 5000 m/s
Class 7 Science Mock Tests
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