Simple Machines

Front

What is a simple machine?

Back

A simple machine is a device that changes the direction or magnitude of a force. Examples include levers, pulleys, inclined planes, screws, wedges, and wheels.

Front

What are the six types of simple machines?

Back

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

Front

What is the purpose of a lever?

Back

A lever is used to lift or move loads with less effort by applying force at one end to lift a load at the other end.

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 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 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 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 mechanical advantage of a 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.

Front

What is a screw and how does it function as a simple machine?

Back

A screw is an inclined plane wrapped around a cylinder, used to hold objects together or lift materials.

Front

What is the role of a wedge in simple machines?

Back

A wedge is a device that tapers to a thin edge, used to separate or hold objects apart by applying force.