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प्रश्न
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उत्तर
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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.
Geothermal energy is produced by the:
(a) fission of radioactive materials
(b) burning of coal inside the coal mines
(c) combustion of natural gas deep inside the earth
(d) fusion of radioactive substances
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 :
Chemical energy to light energy.
What is tidal? Explain in brief.
What is solar energy?
State two disadvantages of using wind energy for generating electricity.
Is it possible that a body may possess energy even when it is not in motion?
State the energy changes which take place when:
During electrolysis.
Unit of calorific value of a substance is ____________.
