Simple Machines and Work Review

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

Front

What is a lever?

Back

A lever is a bar or rod that pivots on a point called the fulcrum to lift or move a load.

Front

What is the formula for work?

Back

Work = Force x Distance (W = F x d) where work is measured in joules.

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 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 pulley?

Back

A pulley is a simple machine that uses a wheel and a rope to lift or lower objects.

Front

What is a screw?

Back

A screw is a simple machine that converts rotational force 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 split or lift objects.

Front

How does a lever reduce effort?

Back

A lever reduces effort by allowing a smaller force to lift a larger load by increasing the distance over which the force is applied.