Machines and efficiency

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.

Front

What are the six types of simple machines?

Back

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

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.

Front

What is a lever?

Back

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

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, allowing for easier movement.

Front

What is a pulley?

Back

A pulley is a simple machine that consists of a grooved wheel and a rope or chain, 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 wedge?

Back

A wedge is a simple machine that is a triangular-shaped tool used to separate or hold objects apart.

Front

How do simple machines make work easier?

Back

Simple machines make work easier by increasing the distance over which a force is applied, changing the direction of the force, or multiplying the force.

Front

What is mechanical advantage?

Back

Mechanical advantage is the ratio of the output force produced by a machine to the input force applied, indicating how much a machine multiplies force.