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  • In real machines, there is always friction that reduces the efficiency of the machine.
  • This reduces the mechanical advantage because some of the input force has to be used to overcome the force of friction in the machine.
  • To reduce friction in the machine, you could add a lubricant such as oil.
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Why is the actual mechanical advantage of a machine different for a machines ideal mechanical advantage?

The actual mechanical advantage of a machine is usually less than its ideal mechanical advantage due to factors like friction, energy loss, and imperfections within the machine. These losses reduce the efficiency of the machine in transferring input force to the output force. Ideal mechanical advantage is based on the design and geometry of the machine, while actual mechanical advantage accounts for real-world limitations and performance.


What is true about the mechanical advantage of a machine a it increases with greater friction b it decreases as the input distance increases c it is less than the idle mechanical advantage?

c) It is less than the idle mechanical advantage. The actual mechanical advantage of a machine is always less than the ideal mechanical advantage due to factors like friction and energy losses in the system.


What is the difference between actual machanical advantage and ideal machanical advantage?

Ideal mechanical advantage is what could be obtained without the effects of gravity and friction lowering the efficiency of the machine. The actual mechanical advantage is what can actually be obtained by the machine.


Why is the ama of a machine always less than the ima of a machine?

The actual mechanical advantage (AMA) of a machine is always less than the ideal mechanical advantage (IMA) due to factors such as friction, inefficiencies in the machine's design, and other losses of energy. As a result, the actual output force of a machine is typically less than the input force required to operate it, leading to a lower actual mechanical advantage compared to the ideal mechanical advantage.


For a given machine explain why the MA is usually less than the IMA?

The mechanical advantage (MA) is usually less than the ideal mechanical advantage (IMA) for a machine due to factors such as friction, inefficiencies in the machine's design, and energy losses through heat or sound. These factors cause the input work to be greater than the output work, resulting in a lower actual mechanical advantage compared to the ideal mechanical advantage.


What happens to the mechanical advantage of a machine if friction is reduced through the use of oil or some other means?

Wear and tear of moving parts would be reduced. Less energy would be needed to run the machine, as there would be less friction to be overcome. A well lubricated machine is more efficient than a neglected machine with unoiled parts.


Why do you multiply to find the total mechanical advantage?

The "Ideal Mechanical Advantage" of a simple machine isIMA = output force /input force . To find the 'actual' or real-world mechanical advantage,multiply the IMA by the machine's efficiency.


If you know the input distance and output distance of a machine which of the following can you calculate?

Type your answer here... The actual mechanical advantage.


The more efficient a machine is the closer the actual mechanical advantage is to the?

Perfect efficiency


How does the ideal compare with the actual mechanical advantage?

The ideal mechanical advantage is based on the geometric relationships of a machine's components and assumes no energy losses, while the actual mechanical advantage accounts for friction, inefficiencies, and other factors that can reduce the output compared to the input force. In reality, the actual mechanical advantage is always less than the ideal mechanical advantage due to these energy losses.


How is the actual mechanical advantage of a machine determined?

The actual mechanical advantage of a machine is determined by comparing the input force applied to the machine to the output force it produces. It is calculated as the ratio of the output force to the input force, taking into account any inefficiencies or energy losses in the machine.


You test a machine and find that it exerts a force of 5 N for each 1 N of force you exert operating the machine What is the actual mechanical advantage of the machine?

The mechanical advantage is 5.Mechanical Advantage = Output Force/Input Force