问题 问答题 简答题

地球自转的意义。

答案

参考答案:

1、地球自转决定昼夜更替,并使地表各种过程具有昼夜节奏;

2、地球自转使所有在北半球作水平运动的物体都发生向右偏转,在南半球则向左偏;

3、地球自转造成同一时刻、不同经线上具有不同的地方时间;

4、月球和太阳的引力使地球体发生弹性变形,在洋面上则表现为潮汐;

5、地球的整体自转运动同它的局部运动如地壳运动、海水运动、大气运动等,都有密切的关系。

根据开普勒定律,在单位时间内,日地连线在地球轨道面上扫过的面积相等;所以,地球公转速度在近日点最大,在远日点最小。

判断题
阅读理解



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