Advertisements
Advertisements
प्रश्न
State the energy changes which take place when:
An air gun is loaded and then fired.
Advertisements
उत्तर
During loading, the mechanical energy changes to the potential energy of spring. On firing, the potential energy of spring changes to the kinetic energy of the bullet.
संबंधित प्रश्न
What is nuclear energy?
Give one example of a body that has potential energy, due to its position at a height.
Give one relevant example for the following transformation of energy :
Chemical energy to light energy.
State the work energy theorem.
A body of mass 5 kg falls from a height of 10 m to 4 m. Calculate:
The total energy possessed by the body at any instant? (Take g = 10 ms-2).
What kind of energy is possessed in a situation when?
A horse running along a level road
Write the type of energy possessed in the following case:
A bent bow
Give one example when:
Chemical energy changes to light energy.
A body of mass 50 kg has a momentum of 3000 kg−1 ms. Calculate:
(j) the kinetic energy of the body.
(ii) the velocity of the body.
In a hydroelectric power station, 1000 kg of water is allowed to drop through a height of 100 m in 1 sec. If the conversion of potential energy to electric energy is 60%. Calculate the power output. [Take: g = 10m/sec2]
