He force of gravity is an inverse square law. this means that, if you double the distance between two large masses, the gravitational force between them a) also doubles. b) strengthens by a factor of 4. c) weakens by a factor of 4. d) weakens by a factor of 2. e) is unaffected.

The force decreases by a factor of 4, because 4 is 2-squared. (C).

And they don't have to be "large" masses. The force behaves exactly the same between the lint in your pocket and a speck of dust on a table in the house across the street.

ι вєℓιєνє ιт ιѕ тнє fιяѕт ¢нσι¢є(α.)

нє ѕнσυℓ∂ ѕмιℓє ρσℓιтℓу αи∂ ѕρєαк тσ тнє ρєяѕσи ωнσ ιѕ ιитєяяυριиg αfтєя тнє ∂ιѕ¢υѕѕισи

нσρє ι ¢συℓ∂ нєℓρ.