本课配套习题挑战模式1/6
声音的传播需要一定条件,在下列环境中,声音不能传播的是( )
A: 海底 |
B: 山顶上 |
C: 月球表面 |
D: 泥土中 |
- 提示1:PHA+5aOw6Z+z5Lyg5pKt6ZyA6KaB5LuL6LSo77yM5aOw6Z+z5LiN6IO95Zyo55yf56m65Lit5Lyg5pKtPC9wPg==
- 答案:Qw==
PHA+5aOw6Z+z5Lyg5pKt6ZyA6KaB5LuL6LSo77yM5aOw6Z+z5LiN6IO95Zyo5pyI55CD6KGo6Z2i5Lyg5pKt77yM6YCJ5oupQ+mAiemhueOAgjwvcD4=
本课配套习题挑战模式2/6
下列环境中不能传声的是( )
A: 在海洋深处 |
B: 在月球上 |
C: 在旷野中 |
D: 在封闭的房内 |
- 提示1:PHA+5aOw6Z+z55qE5Lyg5pKt6ZyA6KaB5LuL6LSo77yM5LiA5YiH5Zu65L2T44CB5ray5L2T44CB5rCU5L2T6YO95Y+v5Lul5L2c5Li65Lyg5aOw55qE5LuL6LSo77yM55yf56m65LiN6IO95Lyg5aOw77yOPGJyPjwvcD4=
- 答案:Qg==
PHA+5rW35rSL5rex5aSE5pyJ5rC077yM5pe36YeO5Lit5pyJ56m65rCU77yM5oi/5YaF5Lmf5pyJ56m65rCU77yM6L+Z5Lqb6YO95piv5Lyg5aOw55qE5LuL6LSo77yM5pyI55CD5LiK5piv55yf56m677yM5rKh5pyJ5Lyg5aOw5LuL6LSo77yOPGJyPuaVhemAiULvvI48YnI+PC9wPg==
本课配套习题挑战模式3/6
下面能说明固体可以传声的是( )
A: 听到“轰隆”的雷声 |
B: 树叶“哗哗”的声响 |
C: 隔墙有耳 |
D: 流水“哗哗”的声音 |
- 提示1:PHA+5aOw6Z+z55qE5Lyg5pKt5piv6ZyA6KaB5LuL6LSo55qE77yM5a6D5pei5Y+v5Lul5Zyo5rCU5L2T5Lit5Lyg5pKt77yM5Lmf5Y+v5Lul5Zyo5Zu65L2T5ZKM5ray5L2T5Lit5Lyg5pKtPGJyPjwvcD4=
- 提示2:PHA+5aOw6Z+z5LiN6IO95Zyo55yf56m65Lit5Lyg5pKtPGJyPjwvcD4=
- 答案:Qw==
PHA+QUJE44CB5ZCs5Yiw4oCc6L2w6ZqG4oCd55qE6Zu35aOw44CB5qCR5Y+24oCc5ZOX5ZOX4oCd55qE5aOw5ZON44CB5rWB5rC04oCc5ZOX5ZOX4oCd55qE5aOw6Z+z5piv6YCa6L+H56m65rCU5Lyg5pKt5Yiw5Lq655qE6ICz5py16YeM55qE77yM5pWFQUJE5LiN56ym5ZCI6aKY5oSP77ybPGJyPkPjgIHpmpTlopnmnInogLPvvIzor7TmmI7lm7rkvZPlj6/ku6XkvKDlo7DvvJvnrKZD5ZCI6aKY5oSP77ybPGJyPjwvcD4=
本课配套习题挑战模式4/6
下列环境传声最快的是( )
A: 真空中 |
B: 海水里 |
C: 大雾里 |
D: 钢管中 |
- 提示1:PHA+5aOw6Z+z5Zyo5Zu65L2T5Lit5Lyg5pKt55qE6YCf5bqm5pyA5aSnPGJyPjwvcD4=
- 答案:RA==
PHA+5q2j56m65LiN6IO95Lyg5aOw77yMQeS4gOWumumUmeivr++8jOWjsOmfs+WcqOS7i+i0qOS4reS8oOaSremAn+W6puacgOW/q+eahOaYr+WbuuS9k++8jOWFtuasoeaYr+a2suS9k++8jOacgOWQjuaYr+awlOS9kzxicj48L3A+
本课配套习题挑战模式5/6
下列关于声音的发生和传播的说法中,不正确的是( )
A: 一切正在发声的物体都在振动 |
B: 在大多数情况下,声音在气体、液体、固体中的传播速度关系是v气<v液<v固 |
C: 任何气体、液体、固体都能传播声音 |
D: 只要我们观察到物体在振动,我们就能听到它发出的声音 |
- 提示1:PHA+5aOw6Z+z55qE5Lyg5pKt6ZyA6KaB5LuL6LSoPC9wPg==
- 提示2:PHA+5Zu65L2T44CB5ray5L2T44CB5rCU5L2T6YO95Y+v5Lul5L2c5Li65aOw6Z+z5Lyg5pKt55qE5LuL6LSoPC9wPg==
- 答案:RA==
PHA+5aOw6Z+z55qE5Lyg5pKt6ZyA6KaB5LuL6LSo77yM5omA5Lul5oiR5Lus6KeC5a+f5Yiw54mp5L2T5Zyo5oyv5Yqo77yM6L+Y6ZyA6KaB5Lyg5pKt5LuL6LSo77yM5oiR5Lus5omN6IO95ZCs6KeB5a6D5Y+R5Ye655qE5aOw6Z+z44CCROivtOazlemUmeivr++8jOespuWQiOmimOaEj++8jOaJgOS7pemAieaLqUTpgInpobk8L3A+
本课配套习题挑战模式6/6
下列事例中不能说明液体能传声的是( )
A: 渔民利用电子发声器把鱼引到网里 |
B: 将要上钩的鱼会被岸上的说话声吓跑 |
C: 水龙头发出“哗哗”的流水声 |
D: 依靠潜水艇的声音,判断潜水艇的位置 |
- 提示1:PHA+5aOw6Z+z55qE5Lyg5pKt6ZyA6KaB5LuL6LSo77yM5Y+v5Lul5Zyo5Lu75L2V5rCU5L2T44CB5ray5L2T5ZKM5Zu65oCB5Lit5Lyg5pKt77yO6Kej562U6K+l6aKY5YWz6ZSu5piv56Gu5a6a5aOw6Z+z5piv5Zyo5ZOq56eN5LuL6LSo5Lit5Lyg5pKt55qEPC9wPg==
- 答案:Qw==
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