Simple Machines 3 (Examples)

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Compound Machine

A combination of two or more simple machines.

inclined plane

A flat surface set at an angle that can be used to move an object to a lower or higher plane.

wheel and axle

A rod attached to a wheel. It makes it easier to move or turn things.

lever

A stiff bar that moves about a fixed point (fulcrum). It is a simple machine that is used to push, pull, or lift things.

pulley

A wheel with a grooved rim in which a rope can run to change the direction of the pull and lift a load.

screw

An inclined plane wrapped around a cylinder or cone. Commonly used to hold objects together.

Bicycle, Wheelbarrow, Scissors

Examples of COMPOUND MACHINES

Ramp, Stairs, Ladder

Examples of INCLINED PLANES

Seesaw, Crowbar, Shovel

Examples of LEVERS

Flag Pole, Fishing reel

Examples of PULLEYS

Jar lid, Bolt

Examples of SCREWS

Knife, Wedge, Door stop

Examples of WEDGES

Bicycle gears, Doorknob, Roller Skates

Examples of WHEELS AND AXLES

load

The object being lifted on a lever system

fulcrum

The pivot point on a lever

Effort

The push or pull placed on a lever to lift an object

Simple Machines

Tools that make work easier.

wedge

Two inclinded planes that meet at a shrp edge to split objects.

gear

clock

A complex (compound) machine

is made of more than one simple machine

Name the 6 Simple Machines

lever, pulley, screw, wheel and axle, inclined plane, wedge, gear


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