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 is work in physics?

Back

Work is done when a force is applied to an object and the object moves in the direction of the force. It is calculated as Work = Force x Distance.

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 more easily.

Front

What is a lever?

Back

A lever is a simple machine that consists of 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 simple machine that consists of a wheel on an axle or shaft that is designed to support movement and change the direction of force.

Front

What is 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

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 compound machine?

Back

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

Front

What is the formula for calculating work?

Back

Work = Force x Distance, where work is measured in joules (J), force in newtons (N), and distance in meters (m).

Front

What happens to work done if there is no movement?

Back

If there is no movement, the work done is zero, regardless of the amount of force applied.