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प्रश्न
What is hydro energy?
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उत्तर
The kinetic energy possessed by the flowing water is called the water or hydro energy.
संबंधित प्रश्न
Calculate the change in the Kinetic energy of a moving body if its velocity is reduced to 1/3rd of the initial velocity.
What name is given to the heat energy obtained from hot rocks inside the earth?
State different forms of potential energy and give one example of each.
Select the renewable and non-renewable sources of energy from the following:
Wood
How is the solar energy used to generate electricity in a solar power plant?
A hydroelectric power station takes its water from a lake whose water level is 50 m above the turbine. Assuming an overall efficiency of 40%, calculate the mass of water which must flow through the turbine each second to produce power output of 1 MW. (Take g = 10 m s−2).
Give three examples of bodies possessing kinetic energy.
State the energy changes which take place when:
A bulb glows, when torchlight is switched on.
State the energy changes which take place when:
Water freezes in the freezing chamber of a fridge.
State the energy changes which take place when:
A battery lighting up a bulb.
