Sound — Practice Quiz
Gujarat Board · Class 9 · Science
Try a 4-question quiz on Sound for Gujarat Board Class 9 Science: tap an answer to check it and see why. 44 questions in the full chapter test.
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Quick Quiz: Sound
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What is sound?
How is sound produced?
What type of waves are sound waves?
In sound waves, regions of high pressure are called:
Sample Questions
Which of the following can act as a medium for sound propagation?
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Air, Water, Steel
Sound can travel through solids (steel), liquids (water), and gases (air). However, sound cannot travel through vacuum as there are no particles to carry the vibrations.
Which characteristics determine the loudness of sound?
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Amplitude
The amplitude of a sound wave determines its loudness. Greater amplitude means louder sound, while smaller amplitude means softer sound.
The pitch of sound depends on:
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Frequency
Pitch depends on frequency. Higher frequency produces higher pitch, and lower frequency produces lower pitch. This is how we distinguish between shrill and deep sounds.
The relationship between speed, frequency, and wavelength of sound is:
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Speed = Frequency × Wavelength
The relationship is v = νλ, where v is speed, ν is frequency, and λ is wavelength. This fundamental wave equation applies to all wave motions.
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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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