A slanted surface used to raise an object is a(n) ____.

A device that does work with only one movement and changes the size or direction of a force is a(n)В ____.

A bar that is free to pivot about a fixed point is a ____.

The rate at which work is done is called ____.

The amount by which a machine multiplies an effort force is called the ____.

An inclined plane with one or two sloping sides forms a machine called a ____.

A machine that changes only the direction of a force has a mechanical advantage ofВ ____.

Two simple machines that are part of a bicycle are a(n)____.

An arrangement of pulleys designed to reduce the effort force is called a ____.

When two or more simple machines work together, they are called a(n)____.

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