Two objects with a mass of 10,000-kg each and a distance of 1 meter between them. a) What is the force of gravity between the two objects?
b) What is the force of gravity if we double one of the masses?
c) What is the force if we doubled both masses?
d) What is the force if we doubled both the masses AND we doubled the distance between the masses?

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.