A. They depend on charge.
B. They are field forces.
C. They act only when objects are touching.
D. They depend on mass.
A. Electric force is inversely proportional to the square of the distance between objects.
B. Gravitational force is stronger than electric force.
C. Electric force can both attract and repel.
D. Gravitational force exists between objects that are not touching.
A. Forces are either attractive or repulsive.
B. The inverse square distance law applies.
C. Forces are proportional to physical properties.
D. Potential energy is a function of distance of separation.
A. FE > FG
B. FE < FG
C. FE = FG
D. If the charges on the spheres are of the same sign, then FE > FG ; but if the charges on the spheres are of opposite sign, then FE < FG.
E. Cannot be determined without knowing the distance between the spheres
A. the gravitational force is a lot stronger
B. the electric force is a lot stronger
C. the two types of forces are the same
D. they cannot be compared
E. the electric force is slightly stronger