
四年级科学-地心引力
Quiz
•
Science
•
4th Grade
•
Medium
KEH Moe
Used 115+ times
FREE Resource
21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下面是一则说明。
因为地球有X,所以地球表面上的一切物体都能处在位置上,不会悬空。
上面说明中的X指的是什么?
推力
拉力
摩擦力
地心引力
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什么是地心引力?
让植物生长的力
把物体吸向地球的力
让地球环绕太阳运转的力
使物体推动的力
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪项与地心引力无关?
苹果掉到地上
水向下流
火车往前行驶
被抛上去的球往下掉
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪项与地心引力有关
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
为什么爬山比下山费力?
上山时没有受到地心引力影响
上山时受到地心引力的束缚
下山时受到地心引力的束缚
腿部肌肉不够强壮
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
为什么宇航员无法平稳地站在太空船里站立?
太空里没有地心引力
太空里的地心引力较弱
太空里的地心引力较强
太空里的地心引力太强
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
月球的地心引力仅为地球的
.一个60kg重的年轻人站在月球上的重量会是多少?10kg
20kg
30kg
40kg
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