Asked in SciencePhysicsPulleys
Where is the output and input force on a wheel and axle?
What is the input force and output force of a wheel and axle?
Asked in Physics
How do you find the output force of a wheel and axle if you already know the input force?
Asked in Physics
What happen when the input force is applied on the axle instead of the wheel?
On a wheel and axle where would you apply force to make a greater force?
What is the input force and the output force of a can opener?
A "regular" can opener is a machine that combines a wedge (to cut through the top of the can) with a wheel and axle (which moves the can opener's cuttng wheel -- the wedge -- around the top of the can). The input force is provided by the operator, either by hand or via electric power. The output force is the separation of the metal of the top and the movement of the opener around the can. We also find that the can and the openers parts get a bit warmer with its use, and there are losses in the system due to friction.
Asked in Science
How does a wheel and axle multiply force?
Asked in Physics, Plate Tectonics
What is the work output by a 92 percent efficient wheel and axle when 75 J of work is input?
Asked in Science, Math and Arithmetic, Physics
If the input force on a wheel and axle is 2 Ns and the output force is 20 Ns what is its mechanical advantage?
The mechanical advantage is 10. We use machines to make our work easier and faster. Mechanical advantage gives an idea of how much a mechanism makes our work easier. It is the factor by which the mechanism multiplies the force or torque applied. One way of calculating mechanical advantage is: Mechanical Advantage= (output force)/ (input force) So using this formula to answer the question above, the result is 20/2 = 10
Asked in Science
On a wheel and axle where would you apply force to increase speed?
What is the purpose of inter-axle differential?
How does the wheel and axel help us do work?
In general, the simple machine gives us a mechanical advantage. The wheel and axle specifically reduce the friction between the ground and the object we are moving (for example a car), and the leverage advantage we apply to the axle increases the efficiency of the force applied to moving the car through a transmission. Additionally, the wheel and axle of a car let us coast when the force is no longer applied (taking our foot off the gas), or stop when another force is applied (the brakes). You apply a force on the wheel, whose radius R is larger than the axle. The force is transmitted to the axle, which has radius r. This resultant force, which is bigger than the force you applied, does some work for you. The force that does the work is bigger by a factor of R/r For example, if the wheel is 10 times wider than the axle, the resultant force will be 10 times bigger. Wheel and axle machines of this form are very common ... The screwdriver is a wheel & axle, with the handle as the wheel. It's not much wider than the blade, so the force isn't multiplied much. If you had large hands to grip a really wide-handled screwdriver, it would be easier to turn a screw. The faucet handles are a simplied version of the wheel & axle. Here the radius of the 'wheel' is much larger than the 'axle', so a large force is applied. A wheel & axle can also be used in reverse. You apply force to the axle, to make the wheel turn. This doesn't seem to make much sense ... you'll have to apply a much larger force, to produce a relatively small resultant force. Why bother? There are two reasons why you would want to do this. First, like all simple machines, there is a trade-off. In a normal wheel & axle like those above, when the force is multiplied by, say, a factor of 10, the axle turns through a circular distance of only a tenth of that through which you turned the wheel. This isn't a problem when you're turning a screw with a screwdriver, because the circumference of the hole is small. However, let's reverse the situation. Suppose you apply your force to the axle. If you turn the axle, the wheel will turn 10 through a distance 10 times as much as you turned the axle. When the wheel is attached to a vehicle, each turn of the wheel moves you farther along the ground. With a really big wheel, one tiny turn of the axle moves you down the road a distance equal to the much larger circumference of the wheel. This relates to the second reason why we would want to apply our force to the axle, even though we don't get much resultant force from the wheel. If we have a large source of power to apply to the axle, we don't care how much force is needed! This is the principle behind the reverse wheel & axle. You apply whatever force you need to the axle, from some sort of motor, and the resultant force given off by the wheel, although much smaller, will cause the wheel to turn through a very large distance. cuz it does
Asked in Science
Why is it important that the diameter of the wheel be greater than the diameter of the axle in a wheel and axle?
because the wheel turns through a much greater distance than the axle. but the smaller turn of the axle is more powerful.witten by-brenda v. ========================= Answer #2: -- The fact that the wheel turns through a greater distance that the axle does is a result, not a cause, of the wheel being bigger than the axle. -- The axle is not more powerful than the wheel. Ignoring losses, they must both have the same power. The axle's force is greater than the wheel's force, but to pay for it, the axle must turn through greater distance. Same as all the lever stuff. -- The diameter of the wheel needs to be greater than the diameter of the axle only if you'd prefer not to have the axle scrape on the ground.
Asked in Science, Math and Arithmetic
What is the mechanical advantage of a wheel and axel?