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Is it possible for any machine to output more energy than is inputted?
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Why heat given off during energy transformations wasted energy?
to do any work we need energy but nothing is ideal or 100% efficient {efficient means when input is equal to output without wastage of energy inputted to a system} So when energy is inputted to a matter...it uses this energy by performing some work but gives off some energy in the form of heat
What is meant by the input force and output force of a machine?
the input force is how much energy or force you put into the machine, the output force is how much energy the machine produces with the end product.
The of a machine is the ratio of its energy output to the energy input?
effeciency. study island
Why is difficult to increase the efficiency of a machine?
cheese
Why is the work output of a machine always less than the work input?
In a real machine, the output work is always less because input energy will be converted to heat energy and lost.
Why heat given off during energy transformations wasted energy?
to do any work we need energy but nothing is ideal or 100% efficient {efficient means when input is equal to output without wastage of energy inputted to a system} So when energy is inputted to a matter...it uses this energy by performing some work but gives off some energy in the form of heat
What is meant by the input force and output force of a machine?
the input force is how much energy or force you put into the machine, the output force is how much energy the machine produces with the end product.
The of a machine is the ratio of its energy output to the energy input?
effeciency. study island
Is it possible for energy output to be greater than energy input?
No.
Why is difficult to increase the efficiency of a machine?
cheese
Why is the work output of a machine always less than the work input?
In a real machine, the output work is always less because input energy will be converted to heat energy and lost.
What is the difference between a ideal machine and real machine?
In ideal machine input is equal to output . The efficiency of ideal machine is 100% . In real machine input is not equal to output .The efficiency of ideal machine in not 100% . In ideal machine there is no lose of energy . In real machine there is lose of energy . In real machine there is no friction . While in real machine there is friction .
What is the formula for efficiency of a machine?
useful energy output divided by total energy output x 100 give answer as a percentage, which is why you multiplied by 100
What type of advantage described the ability of a machine to increase output force?
Mechanical advantage is the greater outputted force than inputted force that is generated by using a machine. One example is pulling a pulley to create a much greater output force on the other side that a person could not lift without a pulley.
Work input equals work output is what type of machine?
Such as machine is said to have an efficiency of 100%. Since some type of energy loss is unavoidable, this is not possible in real life, but in some cases it can be approximated quite well.
Ahmed inputs 250j of work on a machine Explain why that machine has an output force of 200j?
The machine has an output force of 200 J because the rest of the 50 J was converted into thermal energy.
What is meant by efficiency of a machine?
It is the output energy compared to the input energy. This will always be less than 100%
