Do all bodies produce sound?2.Touch the bell when it stops producing sound. Can you feel the vibration? What do you understand by this?3.Name the sound producing organ.4.Can sound travel through vacuum?5.What is oscillatory motion?6.Why the sound of the baby is feeble?7.What is ektara? Identify its vibration part.8.Explain that sound travels in liquids as well.9.Name some musical parts and their vibrating parts10.How does shrillness or pitch is affected by frequency?

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