Advertisements
Advertisements
Question
Differentiate between the potential energy (U) and the kinetic energy (K).
Advertisements
Solution
| Potential energy (U) | Kinetic energy (K) |
| 1. The energy possessed by a body by virtue of its specific position or changed configuration is called potential energy. | 1. The energy possessed by a body by virtue of its state of motion is called kinetic energy. |
| 2. Two forms of potential energy are gravitational potential energy and elastic potential energy. | 2. Forms of kinetic energy are translational, rotational and vibrational kinetic energy. |
| 3. Example: A wound up watch spring has potential energy. | 3. Example: a moving car has kinetic energy. |
APPEARS IN
RELATED QUESTIONS
Give one example of a body that has potential energy, due to its position at a height.
Name the type of energy (kinetic or potential) possessed by the following:
A bullet fired from a gun.
Explain the principle of generating electricity from hydro energy.
State two disadvantages of using nuclear energy for producing electricity.
Show that the quantity 2K/v2 has the unit of mass, where K is the kinetic energy of the body.
Write the type of energy possessed in the following case:
A falling apple
State the energy changes which take place when:
In a heat engine.
A girl of mass 35 kg climbs up from the first floor of a building at a height 4 m above the ground to the third floor at a height 12 m above the ground. What will be the increase in her gravitational potential energy? [g = 10 ms-2]
Use your brain power!
Why do tablets of camphor decrease in size day by day?
In which states is water found in nature?
