Exam-style question
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What is the significance of the inverse-square law in gravitational force?.
- A.It states that gravitational force increases with distance.
- B.It states that gravitational force decreases with the square of the distance between two masses.
- C.It states that gravitational force is constant regardless of distance.
- D.It states that gravitational force is only applicable at short distances.
Model answer
What a good answer should say
- It states that gravitational force decreases with the square of the distance between two masses.
Explanation
Why this works
The inverse-square law defines how gravitational force behaves with distance, specifically that the force decreases as the square of the distance between two masses increases. The key difference is that this law applies to all point masses and is fundamental in understanding gravitational interactions.
This principle is crucial in astrophysics and satellite motion, concluding that it governs the strength of gravitational attraction over distance.
Common mistake
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