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प्रश्न
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उत्तर
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संबंधित प्रश्न
When do we say that work is done?
Define 1 J of work.
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
A sailboat is moving due to wind energy.
A car is being driven by a force of 2.5 ✕ 1010 N. Travelling at a constant speed of 5 m/s, it takes 2 minutes to reach a certain place. Calculate the work done.
How much work is done when a force of 2 N moves a body through a distance of 10 cm in the direction of force?
Name the type of energy possessed by a
(i) stretched catapult (ii) hot iron
(iii) wound up clock
Name the physical quantity associated with the 'rate of doing work'.
Give an example
Light energy changes to electrical energy.
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
A donkey is carrying a load on its back.
