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प्रश्न
Write true or false of the following statement.
The energy of flowing water can be converted into electric energy (electricity).
पर्याय
True
False
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उत्तर
True.
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संबंधित प्रश्न
Write true or false of the following statement.
There is always some loss of energy in conversion from one form of energy to another form, so the total energy is not conserved.
Two toy-cars A and B of masses 500 g and 200 g respectively are moving with the same speed. Which of the two has the greater kinetic energy?
Name six different forms of energy?
State the energy changes in the following case while in use:
an electric cell in a circuit
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).
Name the energy changes for the following:
electric ball
State the energy changes which take place in Electricity is obtained from solar energy.
Give one example when:
Electric energy changes to sound energy.
Give one example when:
Kinetic energy to potential energy.
A body of mass m falls from a height h1 to a height h2, above the ground (h1 > h2). What is the loss of potential energy?
