Final answer:
Power is the rate of energy transfer or work done, while watt is the unit of measurement for power, equivalent to one joule per second.
Step-by-step explanation:
The difference between power and watt is that power is the rate at which work is done or energy is transferred, while watt is the unit of measurement for power. Thus, when discussing power in terms of electricity, we refer to watts as the rate at which electrical energy is used or produced over time.
The SI unit for power is defined as one watt (1 W), which is equivalent to one joule per second (1 J/s). To better understand this concept, consider light bulbs: A 25-watt bulb uses less energy per second than a 60-watt bulb, leading to a dimmer light output, as power determines the energy output of an electric circuit.