How is Gross Efficiency calculated?

Gross Efficiency is calculated by taking the ratio of work output to energy input. In this context, work output refers to the useful mechanical work that is performed, while energy input is the total energy expended to perform that work. By expressing this ratio as a percentage, we can evaluate the efficiency of a system in converting energy into productive work.

In this case, the formula of work output divided by energy input and then multiplied by 100 gives a clear metric of how well energy is being converted into work. This is crucial in kinesiology, especially when assessing exercise efficiency and performance in various physical activities, as it helps understand how much of the energy consumed is effectively utilized for movement.

The choice using the other options involves terms that do not appropriately relate work output to the energy input in the context of calculating efficiency. For example, some options might mix up the ratio or use incorrect units that don’t yield a percentage, making them unsuitable for accurately measuring Gross Efficiency.