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Topic: Ideal mechanical advantage

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	Machine - Printer-friendly - MSN Encarta
		The advantage that a machine gives its user by affecting the amount of force needed is called the machine’s mechanical advantage, or MA.
		The theoretical, or ideal, mechanical advantage of a machine is the advantage it would produce if the machine were perfect.
		Because simple machines increase mechanical advantage by increasing the distance over which the effort is applied, one way to compute theoretical mechanical advantage is to divide the distance the effort is applied by the distance the load actually travels.
	encarta.msn.com /text_761562252___12/Machine.html (944 words)

	Mechanical advantage - Wikipedia
		In physics and engineering, mechanical advantage (MA) is the factor by which a machine multiplies the force put into it.
		This allows even simple wheels with wooden axles running in wooden blocks to still turn freely, because their friction is overwhelmed by the rotational force of the wheel multiplied by the mechanical advantage.
		In this way, it differs from the ideal mechanical advantage, which, is a sort of 'theoretical limit' to the efficiency.
	en.wikipedia.org /wiki/Mechanical_advantage (910 words)

	Mechanical advantage -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-19)
		In (The science of matter and energy and their interactions) physics and (The discipline dealing with the art or science of applying scientific knowledge to practical problems) engineering, mechanical advantage (MA) is the factor by which a machine multiplies the force put into it.
		This requires an ideal simple machine, meaning that there are no losses due to (The resistance encountered when one body is moved in contact with another) friction or (The tendency of a body to return to its original shape after it has been stretched or compressed) elasticity.
		The actual mechanical advantage is the mechanical advantage of a real (Any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks) machine.
	www.absoluteastronomy.com /encyclopedia/m/me/mechanical_advantage.htm (1090 words)

	AllRefer.com - machine : Mechanical Advantage and Efficiency of Machines (Technology: Terms And Concepts) - Encyclopedia
		The mechanical advantage (MA) of a machine is the factor by which it multiplies any applied force.
		Ideally, the two ratios are equal, and it is simpler to calculate the ratio of the distance the effort moves to the distance the resistance moves; this is called the ideal mechanical advantage (IMA).
		The efficiency of a machine is equal to the ratio of its output (resistance multiplied by the distance it is moved) to its input (effort multiplied by the distance through which it is exerted); it is also equal to the ratio of the AMA to the IMA.
	reference.allrefer.com /encyclopedia/M/machine-mechanical-advantage-and-efficiency-of-machines.html (529 words)

	Mechanical advantage
		Mechanical advantage (MA) is the how much a machine multiplies the effort force put into it.
		This requires an ideal simple machine, meaning that there are no losses due to friction or elasticity.
		Mechanical advantage can also be calculated using the laws of classical mechanics, especially the idea of torque.
	www.ebroadcast.com.au /lookup/encyclopedia/me/Mechanical_advantage.html (209 words)

	Station Information - Mechanical advantage
		Mechanical advantage (MA) is a term used in physics and engineering that describes how much a machine multiplies the force put into it.
		This is why even simple wheels with wooden axles running in wooden blocks will still turn freely, because the friction is overwhelmed by the rotational force of the wheel multiplied by the mechanical advantage.
		However pulleys can be "added together" to create additional mechanical advantage by having the rope looped over several pulleys in turn.
	www.stationinformation.com /encyclopedia/m/me/mechanical_advantage.html (403 words)

	Simple Machines
		If there were no friction, then the mechanical advantage could be determined by just setting the input work (pushing the object up the incline) equal to the output work (lifting the object to height h).
		As a double incline, its ideal mechanical advantage is the ratio of the depth of penetration L to the amount of separation achieved t.
		The ideal mechanical advantage has little meaning in this case since in practical use, there is usually a large amount of friction.
	hyperphysics.phy-astr.gsu.edu /hbase/Mechanics/incline.html (488 words)

	Teaching Energy & Momentum
		The mechanical advantage of the windlass depends upon the ratio between the radius of the axle and the distance from the center of the axle to the crank handle.
		The mechanical advantage of an inclined plane is the length of the incline divided by the vertical rise, the so-called run-to-rise ratio.
		The mechanical advantage of a screw is ideally the ratio of the circumference of the screw to the distance it advances during each revolution.
	phy.ilstu.edu /programs/ptefiles/312content/classes/energymomentum.html (1901 words)

	Simple Machines (Site not responding. Last check: 2007-10-19)
		For the case of an ideal simple machine all input work is transferred to output work so that the output work is exactly equal to the input work.
		In the same way, when we speak of the mechanical advantage of a simple machine we mean its actual mechanical advantage.
		Only in the case of an ideal simple machine is actual mechanical advantage equal to ideal mechanical advantage.
	aic.map.com /physics/ph03014.htm (593 words)

	Simple Machines by Dave Joscelyne
		The mechanical advantage (MA) of a machine is the ratio between the output force it exerts and the input force that is furnished to it.
		A mechanical advantage greater than 1 means that the output force exceeds the input force, whereas a mechanical advantage less than 1 means that the output force is smaller than the input force.
		The ideal mechanical advantage of the lever is equal to the inverse ratio of the lever arms.
	filebox.vt.edu /users/djoscely/SmplMach/SmplMach.htm (525 words)

	Advantage
		He concluded that it was to England's advantage to trade va...
		Mechanical advantage In simple machines by using the following formulas: Lever: MA = length of effort arm ÷ lengt...
		NES Advantage The NES Advantage was a large arcade joystick and buttons are used—with both hands, one for the joys...
	www.brainyencyclopedia.com /topics/advantage.html (116 words)

	HS PH551A2/MAC 2.2ab (Site not responding. Last check: 2007-10-19)
		Mechanical advantage is expressed in one of two ways.
		The ACTUAL mechanical advantage is the number of times that a machine multiplies the effort force.
		The IDEAL mechanical advantage calculates the mechanical advantage without friction and weight of the lever being considered.
	www.utm.edu /departments/cece/old_site/fifth/hph551a2.htm (1092 words)

	[No title]
		The theoretical mechanical advantage is the reciprocal of the displacement ratio.
		The reciprocal of the displacement ratio is its theoretical mechanical advantage.
		For the machines which cannot be fully disassembled, measure the displacement ratio and mechanical advantage, and calculate the efficiency.
	www.lhup.edu /%7EDSIMANEK/scenario/labman1/machines.htm (1306 words)

	Simple Machines (Site not responding. Last check: 2007-10-19)
		The factor by which it multiplies the force is often called the "mechanical advantage".
		Since we know by conservation of energy that no machine can output more energy than was put into it, the ideal case is represented by a machine in which the output energy is equal to the input energy.
		The expressions for the ideal mechanical advantages of these simple machines were obtained by determining what forces are required to produce equilibrium, since to move the machine in the desired direction you must first produce equilibrium and then add to the input force to cause motion.
	hyperphysics.phy-astr.gsu.edu /hbase/mechanics/simmac.html (347 words)

	Simple Machines -- Mechanical Advantage
		In physics and engineering, mechanical advantage (MA) is the factor by which a machine multiplies the force put into it.
		This allows even simple wheels with wooden axles running in wooden blocks to still turn freely, because their friction is overwhelmed by the rotational force of the wheel multiplied by the mechanical advantage.
		In this way, it differs from the ideal mechanical advantage, which, is a sort of 'theoretical limit' to the efficiency.
	www.edinformatics.com /math_science/simple_machines/mechanical_advantage.htm (904 words)

	How Things Work - Question 1062
		Mechanical advantage is any process that allows you to exchange force for distance (or torque for angle) while performing a particular task.
		The amount of mechanical work you must do (i.e., the amount of energy you must supply) to perform that task won't change, but the relationship of force and distance (or torque and angle) will.
		So ideal mechanical advantage assumes no change in the work you do while actual mechanical advantage recognizes that you're going to end up doing extra work whenever you employ a machine to obtain mechanical advantage.
	howthingswork.virginia.edu /page1.php?QNum=1062 (516 words)

	mechadv
		Use the software’s formula-input capability to calculate both ideal and actual mechanical advantages for each of the three resistance masses, using correct formulas for each; average the data for each system.
		Make a chart to visually compare ideal and actual mechanical advantage; recognize that the two are only slightly different and analyze reasons for that difference.
		Examine the spreadsheet results and pulley diagrams to look for a pattern between mechanical advantage and the number of supporting ropes in the pulley system.
	www.wside.k12.il.us /tms/Science/mechadv.html (420 words)

	simplemachines
		IMA = Ed/Rd = length of the incline /height of the incline
		When accelerating or climbing a hill, the rider increases the mechanical advantage to increase the force the wheel exerts on the road.
		When going at high speed on a level road, less force is needed, and the rider decreases the mechanical advantage to reduce the distance the pedals must move for each revolution of the wheel.
	homepages.utoledo.edu /MPICKET/simplemachines.htm (1990 words)

	Mechanical Advantage of Pulleys
		The purpose of this lab is to measure the advantage and efficiency of different pulley arrangements.
		The purpose of this experiment is to study various pulley arrangements determine the advantage and efficiency of each of the arrangements.
		The factor by which the input force is multiplied by is the Mechanical Advantage.
	stw.ryerson.ca /~rsingh/mechanical_advantage_of_pulleys.htm (650 words)

	return to phase III
		Ideal Mechanical Advantage (IMA) = effort distance /resistance distance
		Ideal Mechanical Advantage (IMA) = length of slope /height of slope
		The air conditioner must be lifted to get it to the roof of a building that is 10 meters high, and its weight is 980 N. Determine which of the three setups below is better to accomplish this objective.
	utminers.utep.edu /nncardenas/handout4.htm (74 words)

	Mechanical Advantage (Site not responding. Last check: 2007-10-19)
		Mechanical Advantage is the ‘advantage’ or usefulness that a tool can provide to a user.
		There is Mechanical Advantage which includes friction in its calculation and Ideal Mechanical Advantage which does not include friction.
		This is good because the sword allows the soldier to get a faster velocity than a punch, the only downside is that the soldier must hold this sword (the mass).
	www.mrfizzix.com /martialarts/ma.htm (237 words)

	return to phase III
		Second class lever: The distance between the fulcrum ant the Fr is 0.33 m, and the distance between the fulcrum and the Fe is 0.9 m.
		Third class lever: The IMA is 2.5 and the distance between the fulcrum and the Fe is 1.5 m.
		Now, calculate the IMA of an inclined plane X that has a height of 3m and a length of 6m.
	utminers.utep.edu /nncardenas/handout3.htm (218 words)

	The Definition and Use of Simple Machines :: Essay Sample. Free term papers for college students (Site not responding. Last check: 2007-10-19)
		IMA= De/Dr Actual Mechanical Advantage (AMA)- It is pretty much the opposite of IMA meaning it is not 100% efficient and it has friction.
		IMA is ideal mechanical advantage meaning a frictionless world with 100% efficiency.
		AMA is Actual Mechanical advantage meaning there is friction in the machine and the efficiency could range from 0% to 99%.
	www.essaysample.com /essay/002488.html (587 words)

	Physics dictionary
		Ideal mechanical advantage: in simple machine, the ratio of effort distance to resistance distance.
		Mechanical advantage: ratio of resistance force to effort force in a machine.
		Mechanical resonance: condition at which natural oscillation frequency equals frequency of driving force; amplitude of oscillatory motion at a maximum.
	www.physicsphenomena.com /Physicsdictionary.htm (5186 words)

	Incline Plane Lab
		Because there is usually a large amount of friction between the inclined plane and the object being moved, two kinds of mechanical advantage (M.A.) need to be considered: Ideal mechanical advantage(IMA) and Actual mechanical advantage (AMA).
		Ideal mechanical advantage does not take friction into account and is calculated by dividing the length of the ramp (effort distance) by the height of the ramp (resistance distance).
		Because friction cannot be completely eliminated, the actual mechanical advantage is always less than the ideal mechanical advantage.
	www.powayusd.com /teachers/rbird/physical/labs/Simple%20Machine%20Unit/Incline%20Plane%20Lab.htm (374 words)

	mechanical advantage (Site not responding. Last check: 2007-10-19)
		IMA= radius of the wheel (larger) / radius of the axle (smaller wheel)
		IMA= length of the slope/height of the slope
		The IMA is not a formula but a counting of the number of Ropes that support the weight.
	www.mswipc.com /problem_sets/mechanical_ad/mechanical_advantage.htm (276 words)

	Grab the Wheel!
		Mechanical advantage of every simple machine is calculated by comparing its FR to its FE.
		The mechanical advantage of a pulley system is approximately equal to the number of supporting ropes.
		Remind students of their calculations of the mechanical advantage of a lever effort arm, divided by the resistance arm, or mechanical advantage equals the radius of the wheel divided by the radius of the axle, or MA = rw/ra.
	schoolscience.rice.edu /science/curricula/PrintPreviewLearningExperienceOnly.cfm?LEID=850&CurriculaID=169 (1627 words)

	Pulleys and Mechanical Advantage
		I predict that in my tests I will find that the actual mechanical advantage of the pulleys will not be the same as the calculated mechanical advantage because of the friction on the pulleys.
		Mechanical advantage is the sacrificing of distance for effort.
		The friction affected the mechanical advantage because as my graph states the control group has the very worst mechanical advantage because the friction wasn't reduced in any way and it was most affected by friction.
	www.qacps.k12.md.us /cms/sci/PROJALE1.HTM (1503 words)

	The Chief Technologist's Mechanical Advantage
		He took a course in biomechanics—the study of how bones and muscles move, which one might call the pinnacle of mechanical engineering—from Donald Bartel, “who I still maintain an infrequent correspondence with.” Bartel was doing pioneering work with artificial hip joints, the first full hip-replacement surgery having been done a few years earlier.
		Ideally, the computer would figure out the modules and their hierarchy automatically.
		For example, the ignition system has to fire the spark plugs at the correct rate for the engine’s speed, which is determined by how hard you tromp on the gas pedal and regulated by a feedback loop that includes a vacuum sensor linked to the intake manifold.
	pr.caltech.edu /periodicals/EandS/articles/LXVI/antonsson.html (4332 words)

	machine. The Columbia Encyclopedia, Sixth Edition. 2001-05
		arrangement of moving and stationary mechanical parts used to perform some useful work or to provide transportation.
		Complex machines are designated, as a rule, by the operations they perform; the complicated devices used for sawing, planing, and turning, for example, are known as sawing machines, planing machines, and turning machines respectively and as machine tools collectively.
		Its operation is the reverse of that of the electric generator, which transforms the energy of falling water or steam into electrical energy.
	www.bartleby.com /65/ma/machine.html (756 words)

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