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प्रश्न
What kind of energy is possessed in a situation when?
A fish moving in the water.
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उत्तर
Kinetic Energy.
संबंधित प्रश्न
State the changes in form of energy while producing hydro electricity.
State different forms of potential energy and give one example of each.
Calculate the decrease in the kinetic energy of a moving body if its velocity reduces to half of the initial velocity.
What do you understand by mechanical energy?
State two advantages and two disadvantages of using hydro-energy for producing electricity.
State the energy changes which take place when:
A stone projected vertically upwards, returns back to the thrower.
State the energy changes which take place when:
Photographic film is exposed to sunlight.
Give one example when:
Electric energy changes to potential energy.
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.
You do not have rangoli powder. What things can you use as an alternative?
