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प्रश्न
Tick the most appropriate answer.
The force applied on a machine to do work is called the
विकल्प
load
effort
efficiency
fulcrum
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उत्तर
effort
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संबंधित प्रश्न
Write true or false of the following statement.
A gum bottle lying on a table has no energy.
Write true or false of the following statement.
One form of energy cannot be converted into another form.
Fill in the blank
Cooking gas converts _______ energy into heat energy.
Fill in the blank
The S.I.unit of energy is ______
Define the term efficiency of a machine.
Define the term 'watt'.
Name the quantity whose unit is :
(a) kilowatt
(b) kilowatt-hour
We make useful objects from a variety of substances. Another use of substances is that we get energy from some of them.
When we have run a long distance, we feel tired. We have to stop. Why is that?
Find out the form of energy possessed by the following thing.
A rock on the top of a hill
The work done on an object does not depend upon the
