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Nothing is 100% efficient because friction acts opposite on everything.
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∙ 14y ago
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If there was no friction what would that do to mechanical advantage and how would it affect efficiency?
Without friction, some forms of mechanical advantage do not function. In most cases for a mechanical apparatus, a reduction in friction is usually accompanied by an increase in efficiency.
What is a example of mechanical efficiency?
A very practical example of mechanical advantage is the use of a "cheater bar." If you find a bolt that is hard to break, simply slip a long pipe or similar object over the handle and it will apply much more torque.
How does friction impact the amount of mechanical energy produced by a machine?
Friction in a machine can reduce the mechanical energy produced by increasing the amount of energy lost as heat. Friction between moving parts causes resistance, which converts some of the mechanical energy into thermal energy. Minimizing friction through lubrication and proper maintenance can help increase the efficiency of a machine and maximize the amount of mechanical energy it produces.
What is the difference between real mechanical advantage and speed ratio?
the difference between the real mechanical advantage and the speed ratio is -the real mechanical advantage gets affected by friction so the real mechanical advantage gets smaller than the mechanical advantage you calculate. so the real mechanical advantage gets smaller than the speed ratio (because of the friction) and that's why the efficiency never gets 100% efficient (efficiency ; mechanical advantage/ speed ratio x 100(%))
What is the relationship between friction and efficiency of a machine?
The relationship between friction and the efficiency of a machine is when friction increases, efficiency decreases, and vice versa. That is why you can never have 100% efficiency, because there is always at least a little friction. They are inversely proportional, meaning, higher friction equals less efficiency.
What role does friction have in reducing mechanical efficiency?
Friction is the reason that you can never have a 100% efficient machine. It is the reason that most machine have horrible efficiency.
If there was no friction what would that do to mechanical advantage and how would it affect efficiency?
Without friction, some forms of mechanical advantage do not function. In most cases for a mechanical apparatus, a reduction in friction is usually accompanied by an increase in efficiency.
The efficiency of the wedge is low because of?
friction or The mechanical advantage is greater for thinner wedges. However, the efficiency is low because of the large amount of friction.
What efficiency is assumed when calculating the ideal mechanical advantage?
The assumed efficiency is 100% without any friction
What can be done to increase the efficiency of the machine?
Mechanical Efficiency is the ratio of Actual mechanical advantage to ideal mechanical advantage.Efficiency will be maximum when Actual mechanical advantage equals that of ideal.But practically not possible.Actual mechanical advantage will be less due to friction,heat,deflection etc.avoiding these loses will increase the machine efficiency.
What would happen to a pulley system if the load were increased?
Ideal mechanical advantage is the mechanical advantage when there is no friction. It is the mechanical advantage when the efficiency of the pullefy system is 100%. It is a constant for that system of pulleys. Therfore it is not affected by increasing or decreasing the load. But actual mechanical advantage will be less than this ideal mechanical advantage due to friction. In other words the efficiency will be less than 100 %. If the efficiency is 80%, it implies 20% is wasted due to friction while lifting a load. If we increase the load the friction also increases and hence the efficiency will decrease with the load.
What examples describes mechanical efficiency?
greasing a surface helps reduce friction
Levers have a greater mechanical efficiency that other simple machines because?
They have to overcome less friction
Why do levers have a greater mechanical efficiency than simple machines?
The transmission lever is very simple and there is no friction.
Why a normal machine could not have the mechanical efficiency of 100?
Because there is always going to be friction, the efficiency of any machine will always be less then 100 percent.
What is a example of mechanical efficiency?
A very practical example of mechanical advantage is the use of a "cheater bar." If you find a bolt that is hard to break, simply slip a long pipe or similar object over the handle and it will apply much more torque.
How does friction impact the amount of mechanical energy produced by a machine?
Friction in a machine can reduce the mechanical energy produced by increasing the amount of energy lost as heat. Friction between moving parts causes resistance, which converts some of the mechanical energy into thermal energy. Minimizing friction through lubrication and proper maintenance can help increase the efficiency of a machine and maximize the amount of mechanical energy it produces.
