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VGS PUBLICATION-BRILLIANT-SOUND-QUESTIONS GIVEN IN THE LESSON
- Does it travel by itself or is there any force bringing it to our ears...
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- What is sound ? Is a force or an energy?
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- Why don't we hear sounds when our ears are closed?
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- Why is the light ray dancing, after sound is made in the tin?
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- What do you infer form this?
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- Can we say that sound is a form of mechanical energy?
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- Do you hear any sound?
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- Do you see any vibrations in the tuning fork?
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- What do you conclude form the above activity?
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- Can you produce sound without vibration in the body?
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- Give some examples of vibrating bodies which produce sound?
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- What part of our body vibrates when we speak?
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- Do all vibrating bodies necessarily produce sound?
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- If sound travels in the form of a wave then what is the pattern?
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- What do you say about sound waves in air by the above activity?
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- Are they longitudinal or transverse?
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- Does sound get reflected at the surface of a solid?
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- What happens if you lift your tube slightly above the table?
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- Are able to listen to the sound ? If not why?
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- Do hard surfaces reflect sound better than soft ones?
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