Pulleys and Mechanical Advantage L13

A pulley is similar to the wheel and axle simple machine in that it consists of a ______ wheel and axle.

However, with a pulley, the wheel is ______ attached to the axle. It, instead, ______ freely on the axle.

The wheel portion of a pulley has a groove on which a ______ or ______ can pass.

Pulleys allow one to ______ the ______ of the force being applied to the object. If using a single fixed pulley, pulling ______ will move the object upward.

A single fixed pulley allows one to ______ the direction of force, however, it does not create any ______ advantage for the user.

A single, non-fixed pulley with its ______ ropes or chains supporting the object can create a mechanical advantage of ______ for the user.

By ______ more pulleys to a system of pulleys one can greatly increase the ______ advantage of the system. The user's force can be ______ many times.

A system of pulleys working side-by-side with a corresponding set of pulleys is known as a ______ and ______.

The number of ropes or chains supporting the object in a block and tackle system tells you the ______ advantage of the system.

For example, if you had four ropes supporting the object in a block and tackle system, the mechanical advantage would be ______.