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超重与失重

超重与失重. 测量物体重力的方法和原理. 拉力 = 重力 压力 = 重力. 静止稳定后有. 什么叫超重失重现象. 物体对支持物的压力(或对悬挂物的拉力)大于物体所受的重力的情况称超重现象 物体对支持物的压力(或对悬挂物的拉力)小于物体所受的重力的情况称失重现象. 概念扩展 1 物体处于超重,失重时,地球对物体的 重力大小始终不变。. 2 在加速上升或下降时,支持物或悬挂 物对物体的作用力发生了改变,即大 于或 小于物体的重力,这样看起来好 象物体 的重量有所增大或减小。. THE END.

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超重与失重

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  1. 超重与失重

  2. 测量物体重力的方法和原理 拉力=重力 压力=重力 静止稳定后有

  3. 什么叫超重失重现象 • 物体对支持物的压力(或对悬挂物的拉力)大于物体所受的重力的情况称超重现象 • 物体对支持物的压力(或对悬挂物的拉力)小于物体所受的重力的情况称失重现象

  4. 概念扩展 1 物体处于超重,失重时,地球对物体的 重力大小始终不变。 2 在加速上升或下降时,支持物或悬挂 物对物体的作用力发生了改变,即大 于或 小于物体的重力,这样看起来好 象物体 的重量有所增大或减小。

  5. THE END

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