Simple Machines

Front

What is a simple machine?

Back

A simple machine is a mechanical device that changes the direction or magnitude of a force. They are the basic building blocks of more complex machines.

Front

What are the six types of simple machines?

Back

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

Front

How does a lever work?

Back

A lever consists of a rigid bar that pivots around a fixed point called the fulcrum. It can amplify force or change the direction of force.

Front

What is the purpose of a pulley?

Back

A pulley is used to lift heavy objects by changing the direction of the force applied. It can also be used in combination with multiple pulleys to reduce the amount of force needed.

Front

What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to the horizontal. It allows heavy objects to be raised with less effort.

Front

What is a screw and how does it function?

Back

A screw is a simple machine that converts rotational motion into linear motion. It consists of a cylindrical shaft with a helical ridge (thread) that allows it to be driven into materials.

Front

What is a wedge and how is it used?

Back

A wedge is a simple machine that consists of two inclined planes joined together. It is used to split, cut, or lift objects.

Front

What is the mechanical advantage of a simple machine?

Back

Mechanical advantage is the ratio of the output force produced by a machine to the input force applied. It indicates how much a machine can amplify force.

Front

How does a wheel and axle function as a simple machine?

Back

A wheel and axle consists of a larger wheel attached to a smaller axle. When the wheel turns, it moves the axle, allowing for easier movement of heavy loads.

Front

What is the relationship between work and simple machines?

Back

Work is defined as force applied over a distance. Simple machines help to perform work more efficiently by reducing the amount of force needed.