Question

what two types of simple machines make up this compound machine?
o screw, incline plane
o lever, wheel and axle
o screw, lever
o lever, pulley

Explanation:

A corkscrew (the compound machine in question) has a screw - like part that is inserted into the cork. Also, the handles of the corkscrew act as levers. A lever is a rigid bar that pivots around a fulcrum (in the case of the corkscrew, the point where the handle pivots to pull the cork out). The screw is the helical part that penetrates the cork.

• The incline plane is a flat surface at an angle, which is not a part of a corkscrew.
• A wheel and axle consists of a wheel attached to a smaller axle so that they rotate together. There is no such structure in a basic corkscrew.
• A pulley is a wheel with a groove for a rope, which is not present in a corkscrew.

Answer:

screw, lever