Section C The word horsepower was first used two hundred years ago. James Watt had made the world’s first steam engine. He ____ to tell people exactly how powerful the engine was, for at that time there were no units for measuring power.Watt decided to ____ how much work one strong horse could do in one minute. He called that unit one horsepower. With this unit he could measure the work his steam engine could do.He ____ that a horse could lift a 3300-pound weight ten feet ____ in one minute. Because his engine did ten times as much work as the horse, Watt ____ it a ten horsepower engine.