Advertisements
Advertisements
प्रश्न
What is the main energy transformation that occur in:
Charging of a battery.
Advertisements
उत्तर
Electric energy to chemical energy.
संबंधित प्रश्न
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A piece of stone placed on the roof.
A body of mass m is moving with a velocity v. Write the expression for its kinetic energy.
State the energy changes in the following case while in use:
an electric cell in a circuit
State two disadvantages of producing electricity from solar energy.
Name the energy change for the following:
pendulum
Write the type of energy possessed in the following case:
A falling apple
State two advantages and two disadvantages of using hydro-energy for producing electricity.
State the energy changes which take place when:
A body thrown vertically upwards from the ground.
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]
Calculate the kinetic energy of a body of mass 0.1 kg. and momentum 40kg m/s.
