问题
填空题
用大小不同的力敲音叉，发声的______（选填“响度”或“音调”）不同．敲击后，音叉的声音会逐渐变弱，则是因为音叉的______越来越小．
答案
用不同的力敲音叉，音叉振动的幅度不同，所以声音的响度不同；敲击后，音叉的声音会逐渐变弱，是因为音叉的振幅越来越小．
故答案为：响度；振幅．
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用大小不同的力敲音叉，发声的______（选填“响度”或“音调”）不同．敲击后，音叉的声音会逐渐变弱，则是因为音叉的______越来越小．
用不同的力敲音叉，音叉振动的幅度不同，所以声音的响度不同；敲击后，音叉的声音会逐渐变弱，是因为音叉的振幅越来越小．
故答案为：响度；振幅．
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