下列何者是坡道上重物滑行時需要的條件?

4上自然U12素養題組

Quiz
•
Science
•
4th Grade
•
Hard

Weiting Tsai
FREE Resource
56 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A) 越重的物體越容易滑行
B) 越輕的物體越不易滑行
C) 越平的坡道越容易滑行
D) 越陡的坡道越容易滑行
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
人在下坡上推車,哪一個敘述正確?
A) 不需要用力,車子會自動滑行
B) 需要更大的推力
C) 需要減少推力以加速
D) 車速會因推力而減慢
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
使用滑板時,下列哪一種地形滑行速度最慢?
A) 下坡
B) 平路
C) 上坡
D) 坡道
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於坡道上物體滑行的敘述,何者正確?
A) 坡道越平,滑行速度越快
B) 坡道越陡,滑行速度越快
C) 重物滑行速度較快
D) 輕物不會滑行
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一項會影響物體的滑行速度?
A) 坡度
B) 天氣
C) 材質
D) 時間
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
用相同力量推動物體,何種路面摩擦力最大?
A) 下坡
B) 平路
C) 上坡
D) 坡道
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一項是海岸地形?
A) 山脈
B) 沙丘
C) 河流
D) 森林
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