GED Science Practice

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Prepare for the GED Science Test with our comprehensive quizzes. Study with flashcards and multiple-choice questions, each providing hints and explanations. Ensure your success on the GED Science Exam!

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Which simple machine consists of a rope in a wheel's groove?

Lever
Pulley
Inclined plane
Screw

The correct answer is: Pulley

A pulley is a simple machine that utilizes a rope or cable wrapped around a wheel with a groove. This allows for the direction of a force to be changed, making lifting loads easier. A lever, on the other hand, consists of a rigid bar that rotates around a fixed point and is used to amplify or redirect a force. An inclined plane is a flat surface that is set at an angle, making it easier to move objects up or down. A screw is an inclined plane wrapped around a cylinder, used to hold objects together or to lift materials. Therefore, the pulley is the only option that correctly matches the given description of a rope in a wheel's groove.