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Is it true or false that friction reduces the efficincy of a machine?
True. Friction causes resistance within a machine, leading to loss of energy in the form of heat. This decrease in efficiency can result in the machine requiring more energy input to overcome friction and perform its intended task.
Friction changes the useful work of a machine into mechanical energy true or false?
False. Friction typically reduces the efficiency of a machine by converting some of the input energy into heat, rather than converting it into mechanical energy.
Is it true that every machine uses some of its work input to overcome friction?
Yes, it is true that almost every machine uses some of its work input to overcome friction. Friction is a force that opposes motion and can cause energy losses in a system, which often results in the need for extra work input to maintain operation. Reducing friction through lubrication or design improvements can help optimize machine efficiency.
For a machine the input force is 30 N and the input distance is 2 m. Factoring in the effect of friction what must be true about the work output?
The work output will be less than the work input due to the presence of friction. Frictional forces acting against the motion of the machine will reduce the efficiency, resulting in a lower output work compared to the input work. This loss in work is typically converted into heat.
True or false turbulence in airflow causes friction drop?
False. Turbulence in airflow does not cause friction drop. Turbulence can actually increase drag and resistance in airflow, leading to more energy consumption and potentially reducing the overall efficiency of a system.
Is it true or false that friction reduces the efficincy of a machine?
True. Friction causes resistance within a machine, leading to loss of energy in the form of heat. This decrease in efficiency can result in the machine requiring more energy input to overcome friction and perform its intended task.
Friction changes the useful work of a machine into mechanical energy true or false?
False. Friction typically reduces the efficiency of a machine by converting some of the input energy into heat, rather than converting it into mechanical energy.
Is it true that every machine uses some of its work input to overcome friction?
Yes, it is true that almost every machine uses some of its work input to overcome friction. Friction is a force that opposes motion and can cause energy losses in a system, which often results in the need for extra work input to maintain operation. Reducing friction through lubrication or design improvements can help optimize machine efficiency.
Friction always makes the effiency of a machine less than 100 true or false?
True.
For a machine the input force is 30 N and the input distance is 2 m. Factoring in the effect of friction what must be true about the work output?
The work output will be less than the work input due to the presence of friction. Frictional forces acting against the motion of the machine will reduce the efficiency, resulting in a lower output work compared to the input work. This loss in work is typically converted into heat.
What is true transformation efficiency?
True transformation efficiency is the transformation efficiency at the saturation point, or essentially the highest transformation efficiency that can be attained.
True or false turbulence in airflow causes friction drop?
False. Turbulence in airflow does not cause friction drop. Turbulence can actually increase drag and resistance in airflow, leading to more energy consumption and potentially reducing the overall efficiency of a system.
When a machine is used to perform a task work output is always more than work input.?
This statement is not always true. In reality, some energy is lost in the form of heat, sound, or friction while a machine is being used, meaning that the work output is often less than the work input due to energy losses within the system. This concept is known as efficiency, and it is a measure of how well a machine can convert input energy into useful output energy.
Is it true that kinetic friction is always greater than the maximum value of static friction?
Yes, it is generally true that kinetic friction is always greater than the maximum value of static friction.
Is this statement true or false Air can cause friction?
true
Which of the following not true about using a diswashing machine?
This is not true - the machine will work with out power
What is Lubricants blank friction by replacing sliding friction with fluid friction?
reduce shelbyjohnson
