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决定音调高低的因素是（ ）
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教案备课库《2017-2018学年新疆乌鲁木齐市八年级（上）期末物理试卷》真题及答案
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在学习吉他演奏的过程中小华发现琴弦发出声音的音调高低是受各种因素影响的他决定对此进行研究.经过和同学
弦乐器的音调高低决定于弦的长短松紧粗细.在弦的粗细松紧相同时弦越______音调越高在弦的粗细长短相
如图7所示用尺子作乐器探究决定音调高低的因素把钢尺紧按在桌面上一端伸出桌边拨动钢尺听它振动发出的声音
有关声音描述下列正确的是
声带振动幅度大，声强大
声强大，声音响
音调高，声强大
声带振动频率决定音调
音色指声音个性，因人而异
发声体在振动音调高低由发声体的振动____________决定.
如图14所示用尺子作乐器探究决定音调高低的因素把钢尺紧按在桌面上一端伸出桌边拨动钢尺听它振动发出的声
有关声音叙述下列正确的是
声带振动幅度大，声强大
声强大，声音响
音调高，声强大
声带振动频率决定音调
音色指声音个性，因人而异
决定音调高低的条件是
发声体振幅越大，音调越高
发声体振幅越小，音调越高
发声体频率越高，音调越高
发声体频率越低，音调越高
决定音调高低的因素是决定响度大小的因素是．
如图6所示用尺子作乐器探究决定音调高低的因素把钢尺紧按在桌面上一端伸出桌边拨动钢尺听它振动发出的声音
在学习吉他演奏的过程中小华发现琴弦发出声音的音调高低是受各种因素影响的他决定对此进行研究经过和同学们
在学习吉他演奏的过程中小华发现琴弦发出声音的音调高低是受各种因素影响的他决定对此进行研究经过和同学们
在学习吉他演奏的过程中小华发现琴弦发出声音的音调高低是受各种因素影响的他决定对此进行研究经过和同学们
如图所示用尺子作乐器探究决定音调高低的因素把钢尺紧按在桌面上一端伸出桌边拨动钢尺听它振动发出的声音同
3.如图14所示用尺子作乐器探究决定音调高低的因素把钢尺紧按在桌面上一端伸出桌边拨动钢尺听它振动发出
关声音叙述下列正确的是
声带振动幅度大，声强大
声强大，声音响
音调高，声强大
声带振动频率决定音调
音色指声音个性，因人而异
如图5用尺子作乐器探究决定音调高低的因素把钢尺紧按在桌面上一端伸出桌边拨动钢尺听它振动发出的声音同时
利用一根薄钢尺和桌子请你设计下列两个小实验并简要说明实验步骤．1验证声音响度的大小与发声体振动的振幅
决定音调高低的是
幅度
频率
周期
信道
如图用尺子作乐器探究决定音调高低的因素把钢尺紧按在桌面上一端伸出桌边拨动钢尺听它振动发出的声音同时注
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