
功_WORK
Flashcard
•
Physics
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
功的定义是什么?
Back
力对物体做的功
2.
FLASHCARD QUESTION
Front
当力用于将物体移动一定距离时,这被称为...
Back
功
3.
FLASHCARD QUESTION
Front
在水平面上推一个箱子是机械功的例子吗?
Back
是
4.
FLASHCARD QUESTION
Front
对于做功的物体,力和力引起的距离方向需要一致吗?
Back
需要
5.
FLASHCARD QUESTION
Front
如果一个物体在力的作用下没有移动,做功是多少?
Back
零功
6.
FLASHCARD QUESTION
Front
功的单位是什么?
Back
焦耳(J)
7.
FLASHCARD QUESTION
Front
功的计算公式是什么?
Back
功 = 力 × 距离 × cos(θ) 其中θ是力与移动方向之间的角度
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