Simple Machines

Front

What is a simple machine?

Back

A simple machine is a device that makes work easier by allowing the user to apply less force over a longer distance, change the direction of the applied force, or reduce the amount of force needed to do work.

Front

What are the six types of simple machines?

Back

The six types of simple machines are lever, pulley, inclined plane, wedge, screw, and wheel and axle.

Front

What is a lever?

Back

A lever is a simple machine that consists of a rigid bar that pivots around a fixed point called the fulcrum. It is used to lift or move loads.

Front

What is a pulley?

Back

A pulley is a simple machine that consists of a wheel on an axle or shaft that is designed to support movement and change the direction of force.

Front

What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help raise or lower objects with less effort.

Front

What is a wedge?

Back

A wedge is a simple machine that is used to split, cut, or separate objects. It has a thick end and a thin edge.

Front

What is a screw?

Back

A screw is a simple machine that consists of an inclined plane wrapped around a cylinder. It converts rotational force into linear motion.

Front

What is the function of a wheel and axle?

Back

A wheel and axle is a simple machine that consists of a larger wheel attached to a smaller axle. It helps to move loads more easily.

Front

How does a simple machine reduce the amount of force needed to do work?

Back

A simple machine reduces the amount of force needed by increasing the distance over which the force is applied or by changing the direction of the force.

Front

What is an example of a lever in everyday life?

Back

A seesaw is an example of a lever, where the fulcrum is in the middle and the effort is applied at one end to lift a load at the other end.