What do we call a simple machine that consists of a rope and grooved wheel?

What do we call a simple machine that consists of a rope and grooved wheel?

Correct Answer: pulley
pedal
axle
lever

Explanation: A pulley is a simple machine that consists of a rope and grooved wheel. Single pulleys may be fixed or moveable. Single and moveable pulleys may be combined in a compound pulley. The ideal mechanical advantage of a pulley or compound pulley is always equal to or greater than 1. Fixed pulleys and some compound pulleys also change the direction of the input force.

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