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Topic: Simple machine

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Mechanical advantage

Inclined plane

Wheel and axle

Ideal machine

Machine

Machine tool

Pulley

Archimedean screw

Screw

Lever

Static friction

Friction

Wheel

Foxton Locks

Statics

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	Simple machine - Wikipedia, the free encyclopedia
		Note: Real machines are also affected by factors such as friction and elasticity, so the actual mechanical advantage of a simple machine will usually differ from its theoretical value.
		These simple machines fall into two general classes; those dependent on the vector resolution of forces (inclined plane, wedge, screw, toggle joint) and those in which there is an equilibrium of torques (lever, pulley, wheel).
		Simple machines are often used in combination as components of more complex machines; for example the Archimedes screw, which is a pump, is an example of a complex machine where the screw is a helical inclined plane.
	en.wikipedia.org /wiki/Simple_machines (298 words)

	Turing Machines
		The action of a Turing machine is determined completely by (1) the current state of the machine (2) the symbol in the cell currently being scanned by the head and (3) a table of transition rules, which serve as the “program” for the machine.
		The complete state of a Turing machine at any point during a computation may be described by the name of the state that the machine is in, the symbols on the tape, and the cell that is currently being scanned.
		The action of this machine is to repeatedly change one of the original ones into an A, and then write a new ‘1’ to the right of all remaining ‘1’ on the tape, after leaving a zero between the original block and the copy.
	plato.stanford.edu /entries/turing-machine (5456 words)

	Simple and Compound machines
		Simple machines are types of machines that do work with one movement.
		There are 6 simple machines; the inclined plane, the wedge, the screw, the lever, the pulley, and the wheel and axle.
		A wheelbarrow is an example of a complex machine that uses a lever and a wheel and axle.
	www.usoe.k12.ut.us /curr/science/sciber00/8th/machines/sciber/machines.htm (142 words)

	Simple Machines and Contraptions
		Each team will answer specific questions about their assigned simple machine (levers, pulleys, wheel and axle, inclined plane, wedge, screw) As a member of the team you will explore the listed Webpages to find the answers about your assigned job of the task.
		Simple Machines - Pictures of examples of simple machines in everyday life.
		Describe how the simple machine was invented and how it was used in history.
	www.kn.pacbell.com /wired/fil/pages/websimplemfa.html (1000 words)

	Simple Machine Inventions- Ms. Shellhouse 2003-2004 (Site not responding. Last check: 2007-11-06)
		The wheel on our simple machine is used to make the bed roll around if you don't want to get up.
		Our simple machine does a lot of stuff such as recycles cans and then washes them, and then has them come to be used again.
		The simple machines we used were the wheel and axle, inclined plane, just wheels, pulleys, and gears.
	www.fcps.k12.va.us /DeerParkES/kids/SimpleMachines/SMUtterback/utterback.htm (878 words)

	Moving Along with Simple Machines, an integrated unit (Henry County Public Schools)
		The pulley is a simple machine made of a rope or chain wrapped around the wheel.
		The wheel and axle is a simple machine made of a large wheel attached to a post or axle.
		One of the first screw machines was invented by Archimedes in the third century B.C. Archimedes, perhaps the greatest mathematician of his time, designed a machine to lift fresh water from the hold of a ship belonging to King Hiero II of Syracuse.
	www.henry.k12.ga.us /cur/simp-mach (829 words)

	Dirtmeister: Simple Machines -- Investigate the Facts
		Simple machines are "simple" because most have only one moving part.
		A simple machine reduces the amount of effort needed to move something, but you wind up moving it a greater distance to accomplish the same amount of work.
		The gear is sometimes considered a simple machine, but a gear is really just a wheel with teeth.
	teacher.scholastic.com /dirtrep/simple/invest.htm (151 words)

	Simple Machines
		When two or more simple machines are combined in such a way that they work as a single mechanism, the device is classified as a complex machine.
		The wheel and axle is a simple machine consisting of a large wheel rigidly secured to a smaller wheel or shaft, called an axle.
		In this case, the total mechanical advantage is equal to the circumference of the simple machine to which the effort force is applied divided by the pitch of the screw.
	www.uark.edu /depts/aeedhp/agscience/simpmach.htm (2029 words)

	Simple Machines - Succeed in Physical Science
		The most common simple machines are the lever, rollers, the ramp, and the pulley.
		Simple machines usually exchange using a smaller force over a greater distance to move a heavy object over a short distance.
		The are also simple machines that help to reduce the resistance of friction or such.
	www.school-for-champions.com /science/machines.htm (1544 words)

	Machine and Wheels from Infocrumb
		By now your students understand quite a bit about machines, and have moved on from simple machines to create complex mechanisms of their own.
		Simple Machines for Kids: With simple materials, primary students will be able to build and thus better understand the pulley, the lever, the inclined plane, the wedge, and other simple machines.
		Machines in Action Worksheet Students will become keen scientific observers in order to find what objects around them fulfill various functions, and then draw pictures to illustrate that function.
	www.infocrumb.iwarp.com /machine.htm (911 words)

	Simple Machines
		This is a simple webquest that is easy to do but has many enhancements.
		Six machine pages contain information and activities for the students to use.
		This is a series of experiments about simple machines: levers, wheels and inclined planes.
	www.mcsdk12.org /curr/simple_machines.htm (154 words)

	Machinists
		Because the technology of machining is changing rapidly, machinists must learn to operate a wide range of machines.
		Many computer-controlled machines are partially or totally enclosed, minimizing the exposure of workers to noise, debris, and the lubricants used to cool workpieces during machining.
		Occupations most closely related to that of machinist are other machining occupations, which include tool and die makers; machine setters, operators, and tenders—metal and plastic; and computer control programmers and operators.
	stats.bls.gov /oco/ocos223.htm (1803 words)

	Machine Home Page (Site not responding. Last check: 2007-11-06)
		Machines make work easier by changing force or distance, or by changing the direction of the force.
		There are three simple machines: the lever, the pulley, and the inclined plane.
		The wheel and axle, the wedge, and the screw are modifications of the three simple machines.
	www.ed.uri.edu /SMART96/ELEMSC/SMARTmachines/machine.html (343 words)

	"inQuiry Almanack" - Spotlighting... - March, 1997
		Simple machines are simple tools used to make work easier.
		Compound machines have two or more simple machines working together to make work easier.
		Most of the machines we use today are compound machines, created by combining several simple machines.
	www.fi.edu /qa97/spotlight3/spotlight3.html (698 words)

	Simple Machines
		Investigate and Report on Simple Machines - From Scholastic.
		Simple Machines Learning Site "The purpose of this web site is to teach elementary students about the six simple machines."
		Simple Machines - 3rd Grade Unit on Simple Machines
	edtech.kennesaw.edu /web/simmach.html (229 words)

	InventorsToolbox: The Elements of Machines
		In this machine a wheel or spoke is locked to a central axle so that when one is turned the other must turn.
		Though these devices were also used in machines in Leonardo's time, he experimented with them and made changes to improve how they worked.
		Now that you have seen the various elements of machines, you can try to figure out which ones are used in some common devices by going to the Gadget Anatomy page.
	www.mos.org /sln/Leonardo/InventorsToolbox.html (680 words)

	Chapter 2. Mechanisms and Simple Machines
		Machine: an assemblage of parts that transmit forces, motion and energy in a predetermined manner.
		Simple Machine: any of various elementary mechanisms having the elements of which all machines are composed.
		A machine is a combination of rigid or resistant bodies, formed and connected do that they move with definite relative motions and transmit force from the source of power to the resistance to be overcome.
	www.cs.cmu.edu /People/rapidproto/mechanisms/chpt2.html (1143 words)

	Grade Three Science - Simple Machines
		After analyzing the relationship between force and energy, the conversion of force to motion by simple machines is studied.
		Simple hands-on activities for students to try may be found in the grade four optional unit on Light.
		If it is possible to access a simple hoist, clothes line with two pulleys, or come-along with several pulleys, allow students to examine the number of pulleys and how force required is minimized as the number of pulleys increases.
	www.sasked.gov.sk.ca /docs/elemsci/gr3uhesc.html (4425 words)

	Miss Coker's Simple Machine Page (Site not responding. Last check: 2007-11-06)
		Now that you've looked at all these websites and gained knowledge about simple machines, lets take another fun quiz!
		Many people know that Leonardo da Vinci was a famous painter...but did you know he also liked to sketch(draw) machines.
		The machines that he sketched were not even invented yet, he was using his imagination.
	www.geocities.com /kylebrandonlowder/simplemachines.html (304 words)

	Curriculum Unit
		After constructing your machine be sure to test it several time to make sure that it does in fact solve your specific problem.
		Once you have created a machine that will solve your problem you should then write step by step instructions for building this machine(be sure you try your instructions to make sure the results are accurate).
		After we are all situated in our work stations, I will allow the new "teams" to work on a hidden machine activity where they have to find as many simple machines as they can in a picture that I put on the overhead.
	www.geocities.com /mysimplemachinesproject (2250 words)

	ASPIRE - Simple & Complex Machines - Student Overview (Site not responding. Last check: 2007-11-06)
		They have agreed to rely primarily on the use of the six simple machines to accomplish their mission.
		Simple machines give us an advantage by changing the amount, speed, or direction of forces.
		We are dependant on simple machines in many aspects of our lives.
	sunshine.chpc.utah.edu /javalabs/java12/machine/stdntovrvw.htm (257 words)

	[No title] (Site not responding. Last check: 2007-11-06)
		These activities extend the thinking process for students as they are taken beyond the simple rote knowledge and comprehension thinking processes to the more complex and many times energy filled: application, analysis, synthesis and evaluative processes.
		This approach will allow not only understanding of the principles which employ simple machines, but also an extension of knowledge towards their application and usefulness.
		Define the six simple machines, knowing how each differ or are similar in their use.
	youth.net /cec/cecsci/cecsci.09.txt (722 words)

	Thematic Units - Simple Machines
		Great definitions of the six simple machine types and additional resources for teachers.
		The students will be able to identify the six simple machines and how they are used in our lives.
		As you explore this WebQuest you will learn about the six simple machines, their history, and how they make our lives easier along with the patent process.
	www.theteacherscorner.net /thematicunits/simplemachines.htm (726 words)

	[No title]
		This interactive site on simple machines was created with the help of teachers and tested by children.
		This simple machine is a modification of the wedge designed to yield a very large mechanical advantage in minimum space.
		Students will be able to identify the six simple machines (lever, pulley, wheel and axle, inclined plane, wedge, screw) and give examples how each can be used to lessen the effort needed to do work.
	www.cdli.ca /CITE/machinessimple.htm (977 words)

	Howstuffworks "How Bicycles Work"
		Bicycles are simple and beautifully elegant machines that attract just about every kid at an early age.
		The coolest thing about a bicycle is that it lets you get where you are going a lot faster and using a lot less energy than you would if you were walking or running.
		The other neat thing about bicycles for anyone interested in machines and mechanics is that everything is completely exposed.
	www.howstuffworks.com /bicycle.htm (179 words)

	Simple Machines
		Some simple machines are a wheel, a pulley, a lever, a screw, and an inclined plane.
		No matter how complex a machine, it is still based on the compounding of six types of simple machines.
		The six types of machines are the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw.
	www.42explore.com /smplmac.htm (677 words)

	Simple Machine Notes
		Simple Machines will change the size or direction of a force in one motion.
		Machines have what is called mechanical energy, the energy of moving things.
		A pulley is a very common simple machine.
	www.angelfire.com /scifi/dschlott/simplemachines.html (702 words)

	webquest (Site not responding. Last check: 2007-11-06)
		Some simple machines that we will be learning about are: levers, wheels, pulleys, and inclined planes.
		Students will be able to identify 10 simple machines at their home.
		Be able to identify all five simple machines.
	webtech.kennesaw.edu /sthroop/machinequest.htm (196 words)

	Simple Machines Unit -North Canton Schools - Greentown Elementary School (Site not responding. Last check: 2007-11-06)
		Work Is Simple With Simple Machines A "Rhode Island Teacher Projects Integrating Technology Into Math and Science Curriculum SMART96" Project investigating simple machines and their usefulness in everyday life.
		The Elements of Machines: Simple Machines From the Inventor's Toolbox section of the "Leonardo's Workshop" website: "These devices were all in common use for centuries before Leonardo's time.
		Moving Along with Simple Machines (integrated unit): This integrated unit was prepared by teachers of the Henry County Public Schools in McDonough, Georgia.
	viking.stark.k12.oh.us /%7Egreentown/simpmach.htm (559 words)

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