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प्रश्न
State the energy changes which take place when:
A car moves up a hill.
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उत्तर
The kinetic energy of moving car changes to potential energy.
संबंधित प्रश्न
(i) The conversion of part of the energy into an undesirable form is called ______________.
(ii) For a given height h, __________________ the length l of the inclined plane, lesser will be the effort required.
Fill in the blank
The energy possessed by a body due to its position is called ________ energy.
Name the physical quantity measured in terms of horse power.
State two disadvantages of producing electricity from solar energy.
Explain the principle of producing electricity using the nuclear energy.
Two bodies A and B of masses m and M (M ≫ m) have same kinetic energy. Which body will have more momentum?
State the energy changes which take place when:
Photographic film is exposed to sunlight.
State the energy changes which take place when:
A battery lighting up a bulb.
For the same kinetic energy of a body, what should be the change in its velocity if its mass is increased nine times?
What is the difference between the solid, liquid, and gaseous states of a substance?
