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

Front

How does a wedge function as a simple machine?

Back

A wedge is a simple machine that converts a force applied to its blunt end into forces perpendicular to its inclined surfaces, effectively splitting or cutting materials.

Front

What role does friction play in the movement of objects?

Back

Friction is a force that opposes the motion of an object, affecting how easily it can be moved or stopped.

Front

What is an example of a lever in everyday life?

Back

A common example of a lever is a seesaw or a crowbar, where a fulcrum is used to lift a load with less effort.

Front

How does a screw function as a simple machine?

Back

A screw is an inclined plane wrapped around a cylinder, which converts rotational motion into linear motion, allowing it to hold objects together or lift materials.

Front

What is the purpose of a ramp as a simple machine?

Back

A ramp is an inclined plane that allows heavy objects to be moved vertically with less effort by spreading the distance over which the force is applied.

Front

What two simple machines make up scissors?

Back

Scissors are made up of two levers and a wedge, allowing them to cut through materials.

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, making it easier to lift heavy objects.

Front

What is the mechanical advantage of using simple machines?

Back

Mechanical advantage is the factor by which a machine multiplies the force put into it, allowing a smaller input force to lift a larger load.