
Y4 SC 复习光沿直线传播4C
Authored by Chris Lim
Science
4th Grade
Used 11+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
当物体离光源越远时,影子有什么变化?
越来越大
越来越小
变得模糊
形状会改变
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
物体影子的大小随着什么而改变?
I 光源的位置
II 光源的种类
III 光源的亮度
IV 物体与光源的距离
I 和 II
I 和 IV
II 和 III
II 和 IV
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪项说明是正确的?
影子的大小与物体的摆放方式有关
影子的大小与物体的制作材料有关
物体越靠近光源,影子越大
物体越靠近光源,影子越小
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下图是有关光的试验。当手电筒的开关被按下后,
哪个将出现在屏幕上的影子?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下图显示一项实验的观察结果。
根据上图,如果把 J、K 和 L 物体重叠,以下
哪项观察结果是正确的?
银幕上将不会形成影子
银幕上将形成一个模糊的影子
银幕上将形成一个清晰的影子
银幕上影子的形状将变成长方形
6.
OPEN ENDED QUESTION
3 mins • Ungraded
上图显示晶妮进行的实验,光源和白幕的距离被固定。
晶妮的手在哪个位置时会出现以下的手影?
请写上P,Q、R或S
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7.
OPEN ENDED QUESTION
3 mins • Ungraded
图6显示晶妮进行的实验,光源和白幕的距离被固定。
(b) 为什么白幕上会出现影子?
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