Simple Machines

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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.

Tags

NGSS.MS-PS2-2

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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.

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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. It is used to lift or move loads.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Front

What is a wheel and axle?

Back

A wheel and axle is a simple machine that consists of a larger wheel attached to a smaller axle, allowing for easier movement of objects.

Tags

NGSS.MS-PS2-2

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.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

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 wedge?

Back

A wedge is a simple machine that is used to separate two objects or portions of an object, often by being driven into the material.

Front

What is a screw?

Back

A screw is a simple machine that consists of a cylindrical shaft with a helical ridge, used to hold objects together or lift materials.

Front

How does a lever work?

Back

A lever works by using the fulcrum to multiply the force applied, allowing a smaller force to lift a heavier load.

Front

What is the mechanical advantage of a simple machine?

Back

The mechanical advantage is the ratio of the output force to the input force, indicating how much a machine multiplies force.