Note that the work is equivalent, you moved your mass a distance, but the time was different. The watt is a unit of power, and 1000 watts is called a kilowatt . The rating of 100 watts on a light bulb is telling us the rate at which energy is being consumed when the light bulb is on. When you pay your energy bills, for instance electricity, you pay based upon how much energy you consume. This means that a 100 watt light bulb cost 1 cent an hour to operate.
Horsepower is another unit of power.
Interestingly, James Watt, after whom the watt was named, invented the term horsepower. He invented steam powered water pumps. He sold them in units of horsepower. He found that a horse could raise 550 pounds of water up 1 foot in 1 sec of time, when using horses to power the waterpumps in mines. Review A force causes a mass to accelerate.