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Does a machine decrease the amount of work done?
Yes, usually it will decrease it, since no machine is 100% efficient.Just in case you mean "the amount of work REQUIRED", then of course the machine will INCREASE that.
What does not reduce the amount of work that has to be done?
A force machine does not reduce the amount of work that has to be done
Why can't the work done by a machine be greater than the work done on the machine?
Because work is the amount of energy transferred into or out of a system, not counting energy transferred by heat conduction.
Work performed on a machine?
The work done by a machine is called work output
How is the efficiency of a compound machine calculated?
The efficiency of a machine is found by dividing the amount of work done by a machine by the amount of energy used by a machine. The answer is then multiplied by 100 to give a percentage.
Does a machine decrease the amount of work done?
Yes, usually it will decrease it, since no machine is 100% efficient.Just in case you mean "the amount of work REQUIRED", then of course the machine will INCREASE that.
Does a machine decrease the amount of work?
yes
Why would you use a machine if it doesn't decrease the amount of work you do?
If the machine doesn't decrease the amount of work that you do, it might still improve the quality of the final result of your efforts.
What does not reduce the amount of work that has to be done?
A force machine does not reduce the amount of work that has to be done
The amount of work done by a machine is called?
Its output.
Differences between input work and output work?
Work input is work done on a machine to get the desired output. Work output is the amount of desired work that is done by a machine.
Why can't the work done by a machine be greater than the work done on the machine?
Because work is the amount of energy transferred into or out of a system, not counting energy transferred by heat conduction.
How does a simple machine make a hand brake work?
A simple machine uses a single applied force to do work against a single load force. Ignoring friction losses, the work done on the load is equal to the work done by the applied force. They can be used to increase the amount of the output force, at the cost of a proportional decrease in the distance moved by the force.
Work performed on a machine?
The work done by a machine is called work output
Explain how machines make work easier if they do not decrease the amount of work you need to do?
A machine makes work easier by changing the amount of force you exert, the distance over which you exert your force, or the direction in which you exert your force.
How is the efficiency of a compound machine calculated?
The efficiency of a machine is found by dividing the amount of work done by a machine by the amount of energy used by a machine. The answer is then multiplied by 100 to give a percentage.
What is work done on a machine called?
Machine work
