An efficient simple machine is one that converts Response area into a useful form of Response area. For example, a pulley converts almost Response areaof the energy used pulling on the rope into lifting an object.

fill in the blanks, answers ; none input energy, output energy, all

An efficient simple machine is one that converts all input energy into a useful form of output energy. For example, a pulley converts almost all of the energy used pulling on the rope into lifting an object.