PULLEY

What is the primary function of a machine?

• To make work more complex.

• To make work easier.

• To increase the amount of force required.

• To always involve many moving parts.

A pulley is primarily composed of which two main parts?

• A lever and a wedge.

• A screw and an inclined plane.

• A wheel and an axle.

• A hammer and pliers.

What is the main benefit of using a single fixed pulley?

• It multiplies the force applied, making the object feel lighter.

• It changes the direction of the force required to lift an object.

• It allows the object to move horizontally.

• It reduces the distance over which the force is applied.

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Which type of pulley system provides a significant mechanical advantage by reducing the effort needed to lift a load?

• A simple fixed pulley.

• A movable pulley.

• A compound pulley (block and tackle).

• A single wheel and axle.