Exam-style question
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State Newton's law of gravitation.
Model answer
What a good answer should say
- Newton's law of gravitation states that every point mass attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
Explanation
Why this works
This answer is strong because it accurately defines the law, including the relationship between mass, distance, and gravitational force. The question tests the student's understanding of a fundamental principle in physics.
Common mistake
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