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, pulley, inclined plane, wedge, screw, and wheel and axle.

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 lever?

Back

A lever is a rigid bar that pivots around a fixed point called the fulcrum, used to lift or move loads.

Front

What is a pulley?

Back

A pulley is a wheel on an axle designed to support movement and change the direction of force, often used to lift heavy objects.

Front

What is a screw?

Back

A screw is a simple machine that converts rotational motion into linear motion, often used to hold objects together.

Front

What is a wheel and axle?

Back

A wheel and axle is a simple machine consisting of a larger wheel attached to a smaller axle, used to reduce friction and move loads.

Front

What is friction and how does it affect machines?

Back

Friction is the resistance that one surface or object encounters when moving over another. It causes energy loss and reduces the efficiency of machines.

Front

What is a compound machine?

Back

A compound machine is made up of two or more simple machines working together to perform a task.

Front

How does a pulley system work?

Back

A pulley system allows a user to lift heavy objects with less force by changing the direction of the force applied.