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प्रश्न
Give two examples each of renewable and non-renewable sources of energy?
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उत्तर
Renewable sources of energy: Solar energy and wind energy.
Non-renewable sources of energy: coal and oil.
संबंधित प्रश्न
Define calorific value of a fuel.
Name the type of energy (kinetic or potential) possessed by the following:
A stone at rest on the top of a building.
Name the type of energy (kinetic or potential) possessed by the following:
Water flowing in a river.
Give one relevant example for the following transformation of energy :
Electrical energy to light energy.
Give one example to show that the sum of potential energy and kinetic energy remains constant if friction is ignored.
A light mass and a heavy mass have equal momentum. Which will have more kinetic energy?
(Hint : Kinetic energy K = P2/2m where P is the momentum.)
Name the two groups in which various sources of energy are classified. State on what basis are they classified.
What is geo thermal energy? Explain in brief.
Write the type of energy possessed in the following case:
A falling apple
When and why do clothes smell of naphthalene?
