Question

What is accomplished by this simple pulley?
(1 point)
• It changes the total work done to lift the object.
• It changes the duration needed to lift the object.
• It changes the direction of the force needed to lift the object.
• It changes the distance of the pull needed to lift the object.

Answer 1

The primary function of a simple pulley is:

• It changes the direction of the force needed to lift the object.

While pulleys can also affect the distance moved and the effort required, their main purpose is to allow the user to lift an object by pulling down rather than lifting upward.