Question

work and energy
which phrase best describes a machine?
any device that moves an object
any device that uses energy
any device that makes work easier
any device that has multiple parts

Explanation:

A machine is defined as any device that makes work easier by changing the magnitude or direction of a force, or by multiplying the distance over which the force is applied. It doesn't have to just move an object, use energy (though it does), or have multiple parts (simple machines like a lever have few parts).

Answer:

any device that makes work easier