物体经过摩擦后,带有正电的原因是?
静电 电路(9 10)

Quiz
•
Science
•
7th Grade
•
Medium
Yuki Lew
Used 7+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
物体对电子的束缚力较强
物体对电子的束缚力较弱
物体对质子的束缚力较强
物体对质子的束博力较弱
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
下列何者叙述是错误的?
电荷只有两种
同种电荷互相排斥
异种电荷互相吸引
物体不是带正电就是带负电
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
毛皮摩擦橡股棒后,何者图形才是正确的电荷移动情形?(电子束缚能力:橡胶棒>毛皮)
A
B
C
D
4.
OPEN ENDED QUESTION
15 mins • 1 pt
Evaluate responses using AI:
OFF
5.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
写A的答案即可。(电子束缚能力:丝绸>玻璃棒)
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
在实验室里接通电路,要使灯泡发光,除了电池和灯泡外还需要什么?
开关
导线
安培计
电动马达
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
上图显示一个电路图。
Q元件是什么?
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