Two Planets in Space Gravitationally Attract Each Other

question 53

Multiple Choice

Two planets in space gravitationally attract each other. If both the masses and distances are doubled, the force between them is

• A)one-quarter.
• B)half as much.
• C)twice as much.
• D)four times as much.
• E)none of the above

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Definitions:

Positive Feedback

A process in which the end products of an action cause more of that action to occur in a feedback loop, amplifying the original action.

Cervix

The lower, narrow end of the uterus that opens into the vagina, playing a key role in childbirth and menstrual flow.

Inferior

Situated below or directed downward; in anatomy, used to denote the lower portion of a structure or the body.

Lateral

Positioned on or relating to the side of a body or structure.