Exam-style question
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How does Coulomb's law compare to Newton's law of gravitation?.
- A.Both laws describe forces that are inversely proportional to the square of the distance.
- B.Coulomb's law applies only to charged objects, while Newton's law applies to masses.
- C.Both laws are applicable to all types of forces.
- D.Coulomb's law is weaker than Newton's law.
Model answer
What a good answer should say
- Both laws describe forces that are inversely proportional to the square of the distance.
Explanation
Why this works
Coulomb's law and Newton's law of gravitation both describe how the force between two objects decreases with the square of the distance between them, although they apply to different types of interactions (electric vs gravitational).
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