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प्रश्न
A boy sits and stands repeatedly. Draw a graph showing the variation of potential energy with time.
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उत्तर
संबंधित प्रश्न
State two disadvantages of geothermal energy.
A bucket full of water .is on the first floor of your house and another identical bucket with same quantity of water is kept on the second floor. Which of the two has greater potential energy ?
State the energy changes in the following case while in use:
a ceiling fan
How much hydroelectric power is generated in India?
State the energy changes which take place when:
Burning of coal.
Give one example when:
Mechanical energy changes to electric energy.
A girl of mass 35 kg climbs up from the first floor of a building at a height 4 m above the ground to the third floor at a height 12 m above the ground. What will be the increase in her gravitational potential energy? [g = 10 ms-2]
Obtain an expression for the kinetic energy of a body of mass m moving with a velocity v?
A body of mass m is taken from a height h to 2h. What is the increase in its potential energy?
In which states is water found in nature?
