Work and Simple machines

Front

What is a simple machine?

Back

A simple machine is a device that changes the direction or magnitude of a force, making work easier. Examples include levers, pulleys, and inclined planes.

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 pulley work?

Back

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

Front

What is the purpose of a wedge?

Back

A wedge is a simple machine that is used to separate two objects or portions of an object, or to hold an object in place.

Front

Can you give two examples of a pulley in everyday use?

Back

Examples of pulleys include a flagpole hoist and window blinds.

Front

What is a compound machine?

Back

A compound machine is a device that consists of two or more simple machines working together to perform a task.

Front

What is the function of a wheel and axle?

Back

A wheel and axle is a simple machine that helps to reduce friction and allows for easier movement of objects.

Front

What is an example of a lever?

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.

Front

How does an inclined plane help in doing work?

Back

An inclined plane allows a load to be raised by applying a smaller force over a longer distance, reducing the effort needed to lift the load.

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 to it, indicating how much a machine multiplies force.