This is because the actual mechanical advantage is the actual calculation found after dividing the effort force by the output force. Ideal mechanical advantage is what many people would call and estimate. When estimating mechanical advantage, the numbers are always rounded. This makes actual mechanical advantage less.
Sources: Science teacher
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The answer above is incorrect.
The ideal mechanical advantage (IMA) is usually less than the mechanical advantage (MA) in a given machine because of the friction acting on the machine. There will always be some frictional resistance that increases the effort necessary to do the work.
In a real world situation, friction is the chief culprit that robs machines of their ideal mechanical advantage. Friction generally evidences itself as heat. In a car engine, any gas engine really, they use oil to reduce that friction component. If the oil were not there, the parts would melt into each other, from friction.
mechanical advanteage = output force / input force
The ideal mechanical advantage is one you would calculate based on geometry and principles such as the lever rule, gear ratios, numbers of strings on a pulley and so on. In theory, it equals the ratio of output force to input force as well as input displacement over output displacement.
Fout = MA * Fin
Din = MA * Dout
this happens to imply that no energy is lost in the system since
Ein = Fin * Din = Fout/MA * MA * Dout = Fout * Dout = Eout
In the real world, there are always losses along the way. For example, the fulcrum has friction, gears generate heat, and pulleys squeak. That is why you will always get a slightly different number if you actually measure your forces and take the ratio. This number will be your true mechanical advantage.
Ideal mehanical advantage is acting as if friction is not there, actual is well... real so friction is there.
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Machine efficiency (%) = (work out / work in) * 100
In general, Ideal Mechanical Advantage is larger than the Mechanical Advantage because it looses thermal energy or friction.
Mechanical advantage is a ratio of forces. Efficiency is a ratio of powers.
They are both the same.
Friction!
They are gay. Penis
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it's a mechanical advantage of 1 (meaning no mechanical advantage). This is because no matter how much easier it is to spin a the wheel rather than the axle, its a longer distance of effort force and vice versa. * * * * * True, but that is not what mechanical advantage is! Mechanical advantage IS the trade off between the force required and the distance travelled. You can find the ideal mechanical advantage of a wheel and axle by dividing the radius of the wheel by the radius of the axle. * * * * * Better. But I think it could be either of the two reciprocal ratios of the radii, depending on whether the wheel/axle is being used in a 2nd class or 3rd class lever configuration ... i.e., are you cranking the wheel in order to turn the axle, as in a winch, or spinning the axle in order to turn the wheel, as in a motor-vehicle ?
Mechanical Advantage. Using a lever of appropriate size you could lift a 500 pound load with just 50 pounds of force. The distance from the weight to the Fulcrum would have to be 1/10th the distance from the Fulcrum to you, pushing down with 50 lbs of Force.
12 is ideal. Should no be smaller than 11 nor larger than 14
A grade denotes the mechanical properties of a screw - the materials used, size, direction of the thread and so on.
Its not about size, its about controls. If the unit has a control board with IC chips, it uses a glow plug. If it uses mechanical switches, as most older units do, it will have a pilot.
The ideal mechanical advantage is determined by the shape, size, and configuration of the simple machine. The weight of the load, the size of the applied force, or the weight of the components or materials of the machine itself have no effect on the ideal mechanical advantage.
Explain how the mechanical advantage of a wheel and axle change as the size of the wheel increases?
it's a mechanical advantage of 1 (meaning no mechanical advantage). This is because no matter how much easier it is to spin a the wheel rather than the axle, its a longer distance of effort force and vice versa. * * * * * True, but that is not what mechanical advantage is! Mechanical advantage IS the trade off between the force required and the distance travelled. You can find the ideal mechanical advantage of a wheel and axle by dividing the radius of the wheel by the radius of the axle. * * * * * Better. But I think it could be either of the two reciprocal ratios of the radii, depending on whether the wheel/axle is being used in a 2nd class or 3rd class lever configuration ... i.e., are you cranking the wheel in order to turn the axle, as in a winch, or spinning the axle in order to turn the wheel, as in a motor-vehicle ?
As the size of the wheel increases the necessary force needed to pull the wheel decreases
Yes because all machine are not of the same, the bigger in size or depend on d manufacturer
its like a input or output
The size it was built with is the ideal size.The size it was built with is the ideal size.
The larger the size of the wheel the less power you will be able to put to the ground...unless you change the gear ratio of you ring and pinion
Around the size of Connecticut!
Texas is similar in size to Ukraine.
The ideal bedroom size will vary from person to person, depending on their needs.
There is no ideal bra size, it's all up to your heredity. Whatever size your mother and/or grandmother are, you are likely to get that big.