WAEC Physics 2021 Objective — Question 10

Question 10 of 50 from the West African Examinations Council (WAEC) Physics 2021 Objective paper, with the correct answer and a full explanation.

10. Which of the following sketched graphs below illustrates the correct variation of the gravitational force, Fg, between two objects and the distance, d, between their centres?

A. Graph A
B. Graph BCorrect
C. Graph C
D. Graph D

Explanation

Gravitational force follows an inverse-square law (Fg∝1/d²), giving a curve that falls steeply and approaches zero — the shape shown in graph B.

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