Question

question 1: mechanical comprehension a knife blade is an example of which kind of simple machine? a: pulley b: wheel and axle c: inclined plane d: gear

Explanation:

A knife blade is a wedge - shaped object that tapers to a thin edge. An inclined plane is a flat surface that is tilted at an angle. A wedge is actually two inclined planes back - to - back. When you use a knife, the inclined plane (the blade) helps to push materials apart. A pulley is a wheel with a groove for a rope. A wheel and axle consists of a wheel attached to a smaller axle. A gear is a toothed wheel that meshes with other gears.

Answer:

C. Inclined plane