Question

State the energy transformation in the following :

(i) electricity is obtained from solar energy.

(ii) electricity is obtained from wind energy.

(iii) electricity is obtained from hydro energy.

(iv) electricity is obtained from nuclear energy.

Answer 1

i. Light energy into electrical energy
ii. The kinetic energy of wind to mechanical energy of blade/turbine into electrical energy.
iii. The potential energy of water in dams to the kinetic energy of water flowing through penstock pipes into the mechanical energy of turbines into electrical energy.
iv. Nuclear energy to heat energy, heat energy of steam to mechanical (rotational kinetic) energy of turbine, mechanical to electrical energy.