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प्रश्न
State the law of conservation of energy.
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उत्तर
According to the law of conservation of energy, energy can neither be created nor can it be destroyed. It only changes from one form to another.
संबंधित प्रश्न
State two factors on which the work done on a body depends.
A car is running at a speed of 15 km h-1 while another similar car is moving at a speed of 45 km h-1. Find the ratio of their kinetic energies.
State the SI unit of work.
What are the quantities on which the amount of work done depends? How are they related to work?
How much work is done when a force of 1 N moves a body through a distance of 1 m in its own direction?
Explain the difference between a uniform linear motion and a uniform circular motion.
A boy does work when he pushes against a brick wall. (yes/no).
A bucketful of water is to be drawn from a well ______ will be done when a ______ is applied to do this because there will be a ______ of water.
(displacement, work, force)
Who is the odd one out?
