配套习题- 功 -【青果学苑】

1/5单选题

难度：

1.

下列四位科学家中，用其名字命名为功的单位的是（）

A
B
C
D

正确答案：Qg==

PHA+QeOAgeeTpueJueaYr+eUteWKn+eOh+eahOWNleS9je+8jOS4jeWQiOmimOaEj++8mzxicj5C44CB5Yqf5ZKM6IO955qE5Y2V5L2N5piv5Lul54Sm6ICz55qE5ZCN5a2X5ZG95ZCN55qE77yM5ZCI6aKY5oSP77ybPGJyPkPjgIHlipvnmoTljZXkvY3mmK/ku6XniZvpob/nmoTlkI3lrZflkb3lkI3nmoTvvIzkuI3lkIjpopjmhI/vvJs8YnI+ROOAgeeUtemYu+eahOWNleS9jeaYr+S7peasp+WnhueahOWQjeWtl+WRveWQjeeahO+8jOS4jeespuWQiOmimOaEj++8mzxicj7mlYXpgIlD77yOPC9wPg==

2/5单选题

难度：

2.如图，下列过程中，人对物体做功的是（）

A
B
C
D

正确答案：QQ==

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

3/5单选题

难度：

3.在国际单位制中，功的单位是（）

A	N (牛)
B	J (焦)
C	Ｗ (瓦)
D	Pa (帕)

正确答案：Qg==

5a+55q+P5Liq6YCJ6aG56L+b6KGM5YiG5p6Q77yM5piO56Gu5ZCE6Ieq5a+55bqU55qE54mp55CG6YeP5bCx6IO956Gu5a6a56ym5ZCI6aKY5oSP55qE6YCJ6aG544CCQeOAgU7vvIjniZvvvInmmK/lipvnmoTljZXkvY3vvI7kuI3nrKblkIjpopjmhI/vvJtC44CBSu+8iOeEpu+8ieaYr+WKn+eahOWNleS9je+8juespuWQiOmimOaEj++8m0PjgIFX77yI55Om77yJ5piv5Yqf546H55qE5Y2V5L2N77yO5LiN56ym5ZCI6aKY5oSP77ybROOAgVBh77yI5biV77yJ5piv5Y6L5by655qE5Y2V5L2N77yO5LiN56ym5ZCI6aKY5oSPLuaVhemAiULjgII=

4/5单选题

难度：

4.１焦＝１牛×米，就是（）

A	把质量为１千克的物体移动１米所做的功
B	把重为１牛的物体移动１米所做的功
C	在１牛的力作用下，物体在力的方向上移动１米所做的功
D	作用在杠杆上的动力为１牛，动力臂是１米

正确答案：Qw==

MUo9MU48aW1nIHdpZHRoPTE4IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzNFL0FBL3JCQUNKbFRJbWdTeS1abU5BQUFBX0l1dDBXSTM0Mi5wbmciPu+8jOS5n+WwseaYr+WcqO+8keeJm+eahOWKm+S9nOeUqOS4i++8jOeJqeS9k+WcqOWKm+eahOaWueWQkeS4iuenu+WKqO+8keexs+aJgOWBmueahOWKn++8jOaJgOS7pemAiUM=

5/5单选题

难度：

5.李阳同学用100N的力踢一个重为6N的足球，球离开脚后在水平草地上向前滚动了20m．在球滚动的过程中，李阳同学对足球做的功是（　　）

A	2000J
B	600J
C	120J
D	0J

正确答案：RA==

55CD56a76ISa5ZCO77yM5Zyo5rC05bmz6I2J5Zyw5LiK5ZCR5YmN5rua5Yqo55qE6L+H56iL5Lit77yM6Z2g5oOv5oCn6L+Q5Yqo77yM55CD6ISx56a75LqG6ISa77yM6ISa5rKh5pyJ57uZ55CD5pa95Yqg5Yqb77yM5a+555CD5LiN5YGa5Yqf77yM5pWFROato+ehru+8jEHjgIFC44CBQ+mDvemUme+8jjxicj7mlYXpgIlE77yO