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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.
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उत्तर
(i) The conversion of part of the energy into an undesirable form is called dissipation of energy.
(ii) For a given height h, more the length l of the inclined plane, lesser will be the effort required.
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संबंधित प्रश्न
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:
A moving bus.
Give one relevant example for the following transformation of energy:
Electrical energy to mechanical energy.
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.)
State the energy changes in the following case while in use:
a ceiling fan
Select the renewable and non-renewable sources of energy from the following:
Diesel
What is nuclear energy?
What do you understand by the potential energy of the body?
Give one example when:
Kinetic energy changes to heat energy.
Use your brain power!
How do we save fuel by using public transport?
