Advertisements
Advertisements
प्रश्न
Give one example each of a body possessing : (i) kinetic energy, and (ii) potential energy.
Advertisements
उत्तर
(i) Kinetic energy - A car moving with some speed on a road possesses kinetic energy.
(ii) Potential energy- A stretched rubber band possesses potential energy due to the change in its configuration.
APPEARS IN
संबंधित प्रश्न
A mass of 10 kg is at a point A on a table. It is moved to a point B. If the line joining A and B is horizontal, what is the work done on the object by the gravitational force? Explain your answer.
Two bodies A and B of masses 10 kg and 20 kg respectively are at the same height above the ground. Which of the two has greater potential energy?
Write the expression for the gravitational potential energy explaining the meaning of the symbols used.
A body of mass m is moved from ground to a height h. If the force of gravity on mass of 1 kg is g newton, find the force needed to lift the body.
A body of mass m is moved from ground to a height h. If force of gravity on mass of 1 kg is g newton, find the potential energy stored in the body.
Find the gravitational potential energy of 2.5 kg mass kept at a height of 15 m above the ground. The force of gravity on mass 1 kg is 10 n.
A body falls freely under gravity from rest. Name the kind of energy it will possess at the point from where it falls.
If 784 J of work was done in lifting a 20 kg mass, calculate the height through which it was lifted. (g = 9.8 m/s2)
Potential energy and heat energy are the two forms of mechanical energy.
Which of the following is the example potential energy?
