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प्रश्न
Can you tell?
Describe one natural chain of transformation of energy.
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उत्तर
One natural chain of energy transformation is photosynthesis. Solar energy is converted into light energy, which plants use to produce chemical energy (glucose). This chemical energy is stored in plants and transferred through the food chain, powering various life processes.
संबंधित प्रश्न
What is the source of heat contained in geothermal energy?
Write true or false of the following statement.
The energy of flowing water can be converted into electric energy (electricity).
What do you understand by the kinetic energy of a body?
Differentiate between the potential energy (U) and the kinetic energy (K).
Select the renewable and non-renewable sources of energy from the following:
Coal
What happens to the K.E. when
(i) the mass of the body is doubled at a constant velocity and
(ii) the velocity of the body is doubled at constant mass?
Calculate the kinetic energy of a body of mass 0.1 kg. and momentum 40kg m/s.
A body of mass 50 kg has a momentum of 3000 kg−1 ms. Calculate:
(j) the kinetic energy of the body.
(ii) the velocity of the body.
A ball of mass 50 g falls from a height of 2m and rebounds from the ground to 1.6 m. Find:
(i) The potential energy possessed by the ball when initially at rest.
(ii) The kinetic energy of the ball before it hits the ground.
(iii) The final potential energy of the ball.
(iv) The loss in kinetic energy of the ball on collision. (Take: g = 10N kg−1)
In which states is water found in nature?
