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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.
Potential energy changes into kinetic energy when it is put to use
State the unit of energy and define it.
Derive the relation between commercial unit of energy (kWh) and SI unit of energy (joule).
Can you tell?
When can we say that displacement has taken place?
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?
What energy transfer happen in a car engine?
When a body falls freely towards the earth, then its total energy
Which one of the following is not the unit of energy?
The work done on an object does not depend upon the
The weight of a person on planet A is about half that on the earth. He can jump up to 0.4 m in height on the surface of the earth. How high he can jump on planet A?
