An equation that requires energy to run is ... ?

endothermic.

exothermic.

kinetic.

convective.

Endothermic, as endo means to take in and thermic means heat or energy as that is what heat is. Exothermic releases heat when it occurs and kinetic is a form of energy, energy that is doing work. Convective or convection is heat in a liquid cycling, meaning going in a cycle or heating in a circular pattern.