Advertisements
Advertisements
प्रश्न
A bucket full of water .is on the first floor of your house and another identical bucket with same quantity of water is kept on the second floor. Which of the two has greater potential energy ?
Advertisements
उत्तर
A bucket full of water kept on second floor has the greater potential energy. This can be explained as follows :
P.E. = mgh
Mass of both bucket and the gravitational force are same, so the body at greater height will possess more potential energy.
APPEARS IN
संबंधित प्रश्न
Name the type of energy (kinetic or potential) possessed by the following:
A stone at rest on the top of a building.
Give one relevant example for the following transformation of energy :
Electrical energy to light energy.
Name the type of energy (kinetic energy K or potential energy U) possessed in the given cases:
A moving bus
Name the form of energy which a body may possess even when it is not in motion. Give an example to support your answer.
What do you understand by the kinetic energy of a body?
State the energy changes in the following case while in use:
an electric cell in a circuit
State the energy changes in the following case while in use:
a ceiling fan
A ball of mass 0.5 kg slows down from a speed of 5m/s-1 to that of 3m/s-1. Calculate the change in kinetic energy of the ball.
Give three examples of bodies possessing kinetic energy.
Match the pairs.
| Group 'A' | Group 'B' | ||
| (1) | Rolling object | (a) | Heat energy |
| (2) | Food | (b) | Atomic energy |
| (3) | Stretched bow | (c) | Kinetic energy |
| (4) | Sunlight | (d) | Potential energy |
| (5) | Uranium |
(e)
|
Chemical energy
|
