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प्रश्न
What is an ideal machine?
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उत्तर
A machine in which no part of the work done on the machine is wasted is called an ideal or perfect machine. Thus, for an ideal machine, the work output is equal to the work input, i.e., the efficiency of an ideal machine is 1 (or 100 percent).
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संबंधित प्रश्न
State whether the following statement is True or False.
In an ideal machine, work done on load is equal to the work done by effort.
Can a machine have an efficiency of 100%? Give a reason to support your answer.
Answer the following.
What is a machine?
Give a reason for the following.
Machines are able to make our work convenient.
What is the purpose of a jack in lifting a car by it?
Give two examples of inclined plane where it is used to raise a heavy load with less effort ?
Give an example of the following use of a machine to change the point of application of the force.
Give an example of the following use of a machine to obtain gain in force.
Establish a relationship between efficiency, M.A., and V.R.
Which machine will you use to do the following work? Write their type.
To cut vegetables.
