ANSWERS: 4
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The carpet is soft, and the wood is harder, making the ball easier to bounce.
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As silly as it may sound, could you just explain that a carpet is softer than a wooden floor so it 'cushions' (not really sure how to put that bit) so it doesnt bounce as high
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The carpet is soft, and absorbs some of the energy from the ball, making the bounce smaller. The wooden floor is hard and pushes back as hard as the ball, so the bounce is higher.
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The longer the pile on the carpet, the less it will bounce. The ball loses energy brushing against all those fibres just as it takes more energy to push your way though a crowd. knee high fibres and it would get stuck in them before reaching the floor.
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