Lesson 3, Topic 1
Sound energyEnergy is the ability to do work. Energy exists in several forms such as heat, kinetic or mechanical energy, light, potential energy, and electrical energy. Units of Energy: The SI unit... More is a form of wave’s motion which is transferred from a vibrating body to a listener.
Human beings, some animals around us like goats, sheep, birds, metals, and musical instruments can produce sound.
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