Exam-style question
Try this first
Explain how the gravitational force between two masses changes as the distance between them increases, according to Newton's law of gravitation.
Model answer
What a good answer should say
- According to Newton's law of gravitation, the gravitational force between two masses decreases as the distance between them increases.
- Specifically, the force is inversely proportional to the square of the distance between the centers of the two masses.
Explanation
Why this works
This answer is strong because it directly references Newton's law of gravitation and explains the inverse-square relationship, which is a key concept in understanding gravitational interactions. The question tests the student's ability to apply theoretical knowledge to explain a fundamental principle of physics.
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