Which calculation would you use to determine power?

To determine power, the correct calculation to use is work divided by time. Power is defined as the rate at which work is done or energy is transferred over a certain period. When work is performed on an object—whether that's moving it, lifting it, or applying a force to it—this work can be measured in joules (J), while time is measured in seconds (s). Therefore, when you divide the total work done (in joules) by the time taken (in seconds), the result gives you power in watts (W), since 1 watt is defined as 1 joule per second.

This understanding highlights why the other options do not correctly define power. Force divided by time would not yield power as force is measured in newtons and does not directly relate to the concept of work without the distance moved. Energy multiplied by time would give you a quantity that does not relate to the definition of power, since power describes how much energy is used or work is done over a period, not a multiplication of the two. Lastly, distance divided by time represents speed, which is different from the concept of power altogether, as it does not incorporate the work done or energy used.

Thus, the relationship of work to the time over