Advertisements
Advertisements
प्रश्न
Explain the degradation of energy by taking one example of your daily life.
थोडक्यात उत्तर
उत्तर
- When a light bulb glows, a major part of the electrical energy used is converted to heat energy, while some part is converted to useful light energy.
- When we run a vehicle, only a part of energy obtained from its fuel is used up in running the vehicle, major part is used up in heating the moving parts of the machine.
shaalaa.com
Principle of Conservation of Energy
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
What do you understand by the conservation of mechanical energy?
A body of mass 10 Kg is kept at a height of 5m. It is allowed to fall and reach the ground.
(i) What is the total mechanical energy possessed by the body at the height of 2m assuming it is a frictionless medium ?
(ii) What is the kinetic energy possessed by the body just before hitting the ground ? Take g = 10 m/s2.
Is it practically possible to convert a form of energy completely into the other useful form? Explain your answer.
What is degraded energy?
The conversion of part of energy into an undesirable form is called ______.
State the principle of conservation of energy.
