Q: What is indicated by the ratio of the output force to the input force in a machine?


Read this paragraph and choose the correct option from the provided answers:

The mechanical advantage of a machine is the factor by which the machine changes the input force. It equals the ratio of the output force to the input force. A wheel and axle may either increase or decrease the input force, depending on whether the input force is applied to the axle or the wheel.

 Choices:

- momentum

- magnetic force

- man hours

- mechanical advantage


A:
mechanical advantage