Which statements describe intensity? Check all that apply. Intensity is the amount of energy that flows in an area per unit of time. Intensity is the number of wavelengths that flow in an area per unit of time. Intensity that is lower than or equal to 85 units can harm human hearing. Intensity that is greater than or equal to 85 units can harm human hearing. Intensity is measured in decibels. Intensity is measured in hertz.

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.