四年级科学声音
Authored by TEE LH Moe
Science
3rd Grade
20 Questions
Used 284+ times
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
佳琪用一支汤匙不停地敲打碗碟。哪项对声音的说明是正确的？
声音是由按压所产生的
声音是振动所产生的
声音是由弯曲所产生的
声音是由拉伸所产生的
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
上图显示宇顺正在唱歌。宇顺通过什么器官而发出声音？
肺
喉咙
嘴巴
声带
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
伟杰在弹吉他时，发现振动的大小会影响声音的大小。根据伟杰的观察，可作出什么结论？
振动越小，声音越大。
振动越小，声音越小。
振动越大，声音越小。
振动越大，声音保持不变。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪种乐器可通过吹来产生声音？
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
艺芯在一间空荡荡的房间呐喊，却听到回声。哪项最适合解释艺芯的情况？
声源来自房间
艺芯喊得太大声了
声音遇到粗糙的表面反射回来
声音遇到平滑的表面反射回来
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是声源？
声音的类型
声音的大小
产生声音的方式
发出声音的物体
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪项不是利用声呐进行海底搜索？
渔夫
海军
空军
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