Exam-style question
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What does Newton's law of gravitation state about the gravitational force between two masses?.
- A.It is directly proportional to the product of their masses.
- B.It is inversely proportional to the distance between them.
- C.It is directly proportional to the square of the distance between them.
- D.It is independent of the masses involved.
Model answer
What a good answer should say
- It is directly proportional to the product of their masses.
Explanation
Why this works
Newton's law of gravitation states that the gravitational force between two masses is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. This means that as the masses increase, the gravitational force increases.
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