
(14/5) Y4 SC 声音
Quiz
•
Science, Fun
•
4th Grade
•
Practice Problem
•
Medium
Chow Pei Xin
Used 88+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪项是声音的特征?
声音可以被毁灭
声音不可以被反射
声音传播到四面八方
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
阿妮在一楼的课室上课,却能清楚地听见他的班主任在楼下礼堂授课,为什么?
她的班主任喊很大声
她的班主任用放大镜解决人类的极限
她的班主任的声音震动传播到四面八方
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
为什么这种交通工具行驶时发出鸣笛声?
告知大众让路
吸引周围人群的注意
求助以修理坏车
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪项可以减少声音污染?
利用海绵来吸收声量
举办清洁运动
在屋子周围建设篱笆
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下面哪项不是回音的用处?
声纳
雷达
鱼的回音
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
为什么空荡的房间叫喊会听见回音?
声音通过空气传播
声音传播时遇到物体的表面会反射
声音传播时遇到物体的表面会被吸收
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
根据上图,声音时怎样产生的?
声音是由物体振动而产生的
声音是由物体自由移动时产生的
声音是由物体收到外力影响时产生的
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