Question

a student uses an axe to split wood. which simple machine is the student using? lever wedge screw pulley

Explanation:

A wedge is a simple machine with a sharp edge that can split or cut objects. An axe has a sharp edge (the blade) which is used to split wood. A lever is a rigid bar that pivots around a fulcrum. A screw is an inclined plane wrapped around a cylinder. A pulley is a wheel with a groove for a rope or belt. Since the axe is used to split wood (a function of a wedge), the correct answer is wedge.

Answer:

wedge