
四年级科学 第6课 - 声音
Authored by 芷 晴
Science
1st Grade
Used 52+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 sec • 5 pts
图中的人物用什么方法使乐器发出声音?
弹
敲
拉
拍
2.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
为什么吉他会产生声音?
整把吉他振动而产生声音
弹拨的力度太大而产生声音
手指的拔动使周围的空气振动
吉他弦被弹拨时振动而产生声音
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
以下哪项有关声音的说明是正确的?
声音的产生与振动无关
声音可以在没有空气的环境中传播
物体的振动越大,所产生的声音越大
柔软和粗糙的表面反射声音的能力比较好
4.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
以下显示一则对话。
丽莉:“昨天我在家听见远处传来的一声巨响。”
俊何:“我家距离你家300米,我也听到巨响。
为什么丽莉和俊何在不同的位置,但都能听见巨响?
声音是沿直线传播的
声音会向四面八方传播
丽莉和俊何的听觉比较灵敏
声音能在 1 公里的范围内传播
5.
MULTIPLE CHOICE QUESTION
10 sec • 5 pts
在以下哪个地方叫喊最有可能会听到回声?
6.
MULTIPLE CHOICE QUESTION
10 sec • 5 pts
以下哪项是冰激凌小贩摇响摇铃的目的?
制造嘈杂的环境
制造悦耳的声音
吸引他人的注意
向人们发出警告
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
A - 帮助渔民寻找鱼群
B - 可用来测量海底的深度
C - 可用来观察胎儿的发育情况
D - 坚硬和平滑的表面反射声音的能力比较好
以上哪些资料与声呐有关?
A 和 B
A 和 C
B 和 D
M 和 N
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