What is the unit conversion for 1 Watt in terms of power?

The correct answer is that 1 Watt is defined as 1 Joule per second. This definition is rooted in the SI units of power, where power is the rate at which work is done or energy is transferred.

To understand this further, a watt is a measurement of power that indicates how much energy is used or produced over a specific period. In this case, the period is one second. Thus, when we say 1 Watt, we are stating that 1 Joule of energy is being used or transferred in just one second.

The other options reflect different time units for energy transfer. For instance, 1 Joule per minute, hour, or year would represent significantly lower power outputs, as they extend the time over which the energy is transferred. Specifically:

• 1 J/min would mean it takes a whole minute to transfer just 1 Joule.
• 1 J/h would mean 1 Joule is transferred across an entire hour.
• 1 J/yr would imply an incredibly slow energy transfer, taking an entire year to deliver just 1 Joule.

Therefore, the appropriate unit for power as defined by the Watt is 1 Joule per second.