## MCAT Question A Day - 8/30/13 - Answer!

**Two point charges, A and B, are separated by 10 meters. If the distance between them is reduced to 5.0 meters, the force exerted on each**

**A.**decreases to half its original value.

**B.**increases to twice its original value.

**C.**decreases to one quarter of its original value.

**D.**increases to four times its original value.

The correct answer is (D). From Coulomb’s law, F = k(q

_{A}q_{B})/r^{2}, force is inversely proportional to the square of the distance separating the points. Decreasing the distance to half its original value means the force quadruples.*Want more questions? - Click here to check out our MCAT Question A Day archive*