coolkid2041
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The Earth is slightly closer to the Sun in Dec. than it is in June.  The force of gravity of the Sun on the Earth in Dec. compared to June is slightly ______

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SonOfZeus

Slightly greater gravitational force.


Gravity follows the inverse square law, specifically in Newtonian physics we can use the following equation:

[tex]F=G\frac{m_{1}m_{2}}{r^2}[/tex]

Let's focus on the [tex]\frac{1}{r^2}[/tex] part of the equation which denotes the distance between these two objects.  So if the distance is smaller, we will get a larger gravitational force, and if the distance is larger we will get a smaller gravitational force.  Therefore, since in December, Earth is slightly closer to the Sun then we would experience a slightly greater gravitational force.

The Earth is slightly closer to the sun in Dec. than it is in June. The force of gravity of the sun on the Earth in Dec. compared to June is slightly larger.

In winter, the part of Earth is tilted away from the sun while in the summer, the part of Earth is tilted towards the sun. It should be noted that the day of maximum tilt away or towards the sun is the June or December solstice.

Therefore, the Earth is slightly closer to the sun in December than it is in June and the force of gravity of the sun on the Earth in December, when compared to June is slightly larger.

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