Advertisements
Advertisements
प्रश्न
What do you understand by the term 'transformation of energy"? Explain with an example.
उत्तर
The change of one form of energy into another form is known as transformation of energy. This process helps us to convert one form of energy into a more desirable form of energy.
Example - Energy transformation at a hydroelectric power plant
At a hydroelectric power station, a dam is built on a river. Water collected in the reservoir has lots of potential energy. The potential energy of the water gets converted into kinetic energy as it begins to fall down. The kinetic energy of falling water is used to drive huge turbines, which are connected to the electric generator.
APPEARS IN
संबंधित प्रश्न
What kind of energy is possessed by the following?
A stretched rubber band _____________
What type of energy is possessed : by the piece of stone which is thrown away on releasing the stretched rubber strings of catapult?
What type of energy is possessed : by the stretched rubber strings of a catapult?
A boy weighing 40 kg makes a high jump of 1.5 m.
What is his kinetic energy at the highest point?
Name the device or machine which convert :
Mechanical energy into electrical energy.
Name the device or machine which convert :
Chemical energy into kinetic energy (or mechanical energy).
The hanging bob of a simple pendulum is displaced to one extreme position B and then released. It swings towards centre position A and then to the other extreme position C. In which position does the bob have :
(i) maximum potential energy?
(ii) maximum kinetic energy?
Name the energy transfers which occur when : there is a picture on a television screen
A ball falls to the ground as shown below :
What is the potential energy of ball at B?
When an object falls freely towards the earth, then its total energy :