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प्रश्न
In the following case write yes, if the work is being done and no if no work is being done.
A coolie standing with a heavy load on his head
State whether work is done or not, by writing yes or no, in the following case:
A coolie stands with a box on his head for 15 min.
पर्याय
Yes
No
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उत्तर
No.
APPEARS IN
संबंधित प्रश्न
Give reasons for the following A teacher moving around in the class is doing work but a child standing and reading a book is not doing any work.
MULTIPLE CHOICE TYPE
In an electric cell which in use, the change in energy is from:
State the law of conservation of energy.
A boy tries to push a truck parked on the roadside. The truck does not move at all. Another boy pushes a bicycle. The bicycle moves through a certain distance. In which case was the work done more : on the trick or on the bicycle? Give a reason to support your answer.
Distinguish between work and power.
Complete the following sentences:
1 H.P. = ........ W.
What do you understand by the term energy? Is energy a scalar or vector? How is the energy possessed by a body measured?
________ is said to be done when a force is acting on it.
A is a push or a pull ______.
