. Which of the following best describes the law of conservation of energy? . A. Energy must not be used up faster than it is created or the supply will run out. . B. Energy can be neither created nor destroyed. . C. Energy is conserved because it is easily destroyed. . D. Conservation is a law describing how to destroy matter. . E. Energy conservation is a law recently passed by Congress.. What is the power consumed by a 100 Joules energy source in 4 seconds? . A. 400 Watts . B. 100 Watts . C. 200 Watts . D. 50 Watts . E. 25 Watts Which is True abouT TemperaTure and heaT. - A TemperaTure is a measure of The average kineTic energy of The molecules of a subsTance. - B HeaT is The ToTal inTernaI energy of The molecules involved in an energy Transfer. - C BoTh A and B above are True. ' D NeiTher A nor B above are True