Question

simple machine quiz
started: jan 26 at 10:18am
quiz instructions
question 6
what type of simple machine is a knife?
lever
motor
inclined plane
wedge

Explanation:

A knife is a type of wedge. A wedge is a simple machine that is used to separate objects or hold them together, and it has a triangular shape where a force applied to the wide end is transferred to the narrow end to do work (like cutting). A lever works with a fulcrum, a motor is not a simple machine (it's a more complex device), and an inclined plane is a flat surface tilted at an angle (like a ramp), which doesn't match the knife's function and structure. So the correct option is Wedge.

Answer:

D. Wedge (assuming the options are labeled as A. Lever, B. Motor, C. Inclined Plane, D. Wedge; if the original labels are different, adjust the identifier but the text is "Wedge")