Question

all of these spheres have the same mass. the arrows show distance.
figure b shows a greater gravitational force than figure a.
which of the following has an effect on the amount of gravitational force?
inertia
distance
friction

Explanation:

The problem states all spheres have the same mass, so mass is constant. Figure B has a smaller distance between spheres than Figure A and greater gravitational force. Newton's law of universal gravitation shows gravitational force depends on mass and distance. Since mass is equal here, distance is the variable affecting force. Inertia (resistance to motion) and friction (force opposing motion) are unrelated to gravitational force between the spheres.

Answer:

Distance