Advertisements
Advertisements
प्रश्न
What do you understand by ‘potential energy’? Give three examples to illustrate your answer.
Advertisements
उत्तर
Potential energy is the energy possessed by a body due to its position or configuration.
Examples:
- Water stored in a dam has gravitational potential energy.
- A stretched rubber band has elastic potential energy.
- A stone kept at a height has gravitational potential energy.
APPEARS IN
संबंधित प्रश्न
Give reasons for the following A teacher moving around in the class is doing work but a child standing and reading a book is not doing any work.
What is the relationship between Nm and dyne cm?
State the conditions of equilibrium for a rigid body.
Name the type of energy possessed by a
(i) stretched catapult (ii) hot iron
(iii) wound up clock
A girl of mass 50 kg runs up a flight of 40 steps in 20 seconds. If each step in 20 cm high, calculate the power developed by the girl. (g= 10 ms-2).
A man climbs a slope and another walks same distance on level road. Which of the two expends more energy and why?
A force of F = (5y + 20) `hat"j"` N acts on a particle. The work done by this force when the particle is moved from y = 0 m to y = 10 m is ______ J.
