Why is output energy always less than input energy?
Why is output energy always less than input energy?
Because some of the work input to a machine is always used to overcome friction, the work output of a machine is always less than the work input. The percentage of the work input that becomes work output is the efficiency of a machine.
Why is input work greater than output work in science?
Answer: input work is always greater than output work because input devices help the system to run output..
Is work output always lower than energy input?
In physics, work output is the work done by a simple machine, compound machine, or any type of engine model. In common terms, it is the energy output, which for simple machines is always less than the energy input, even though the forces may be drastically different.
Is work out always less than work in?
Work output can never be greater than work input. Machines allow force to be applied over a greater distance, which means that less force will be needed for the same amount of work.
Why the output energy of a real life machine is always less than the input energy Give two reasons?
The output work is always less than the input work because some input work is used to overcome friction. Therefore, efficiency is always less than 100 percent. The output work is always less than the input work because some input work is used to overcome friction.
When output of machine is less than machine friction The machine is called as?
Machine Efficiency
Machine Efficiency The output work is always less than the input work because some of the input work is used to overcome friction. Therefore, efficiency is always less than 100 percent.
Why the efficiency of a machine is never 100?
A machine cannot be 100 percent efficient because output of a machine is always less than input. A certain amount of work done on a machine is lost to overcome friction and to lift some moving parts of the machine.
Is it possible for a machine to produce more output work the input work?
What is the relationship between input work and output work? Since machines do not reduce the work you do, your output work can never be greater than your input work.
Why the efficiency of a machine is always less than one?
Why is the efficiency of machine always less than one? Since a machine does not contain a source of energy, nor can it store energy, from conservation of energy the power output of a machine can never be greater than its input, so the efficiency can never be greater than 1.
Why is the output work less than the input work?
The output work is always slightly less than the work input work. This is because some of the work done is used to overcome friction created by the use of the machine. However the work is not lost. The output work plus the work done to overcome friction = the input work.
How does mechanical advantage affect the output force of a machine?
The number of times that a machine increases an input force is the mechanical advantage of the machine. what affects the output force that a nutcracker can exert on a nut? The position of the nut in the nutcracker affects the nutcracker’s output force. Mechanical advantage describes the relationship between input force and
How is the amount of force exerted on a machine described?
the amount of force exerted on a machine word equation that describes work input. Work input equals the input force multiplied by the input distance. Every machine uses some of its work input to overcome friction. true The force exerted by a machine