Exam-style question
Try this first
How does gravitational force change with distance according to the inverse-square law?.
- A.It increases linearly with distance.
- B.It decreases linearly with distance.
- C.It decreases with the square of the distance.
- D.It remains constant regardless of distance.
Model answer
What a good answer should say
- It decreases with the square of the distance.
Explanation
Why this works
According to the inverse-square law, gravitational force decreases as the square of the distance increases, meaning if the distance doubles, the gravitational force becomes one-fourth.
Common mistake
No common mistake is linked to this question yet.