Question

which one of the following is the correct option for fill in the blank: mechanical, electrical, chemical? the advantage of a machine is the factor by which the machine changes the input force.

Explanation:

The mechanical advantage of a machine is defined as the ratio of the output force to the input force. It quantifies how much a machine multiplies the input force. Electrical and chemical do not fit this definition related to force - multiplication in the context of machines.

Answer:

mechanical