5年级（影响影子大小的因素）第二次
Authored by CHONG Moe
Science
5th Grade
Used 98+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如何才能让影子变得更大？
减少物体和屏幕的距离
减少物体和光源的距离
增加光源
减少物体的面积
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
图中显示一项实验。
根据有关实验，我们可作出什么结论？
光源与物体的距离越近，形成的影子越小。
光源与物体的距离越远，形成的影子越小。
物体与白幕的距离越近，形成的影子越大。
物体与白幕的距离越远，形成的影子越小。
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
上图显示一项实验装置。当手电筒打开时，乒乓球在哪个位置形成的影子最小？
P
Q
R
S
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
上图显示杰西玩手影游戏。如果要让影子变得更小，他应该怎么做？
双手远离光源
双手靠近光源
让屏幕远离双手
改变手摆放的方向
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
观察以上的图片，哪个图片中的人能够顺利看到光呢？
(a)
(b)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
文喜改变手电筒与火柴盒的距离 (x) 以改变影子的大小。以下哪个距离会形成最大的影子？
30cm
50cm
70cm
90cm
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
P-光源照射的方向
Q-物体的摆放方式
R-物体与光源的距离
S-物体与屏幕的距离
以上哪些因素会影响影子的大小？（答案可超过一个）
P
Q
R
S
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