Advertisements
Advertisements
प्रश्न
Give two examples where a body possesses both, kinetic energy as well as potential energy.
Advertisements
उत्तर
Two examples in which the body possesses kinetic energy as well as potential energy are-
(i) A man climbing a hill
(ii) A bird flying in the sky
In both of the above examples, we can observe that the body has speed and its position is above the ground. Therefore, these bodies have kinetic and potential energy.
APPEARS IN
संबंधित प्रश्न
State whether the object possess kinetic energy, potential energy, or both :
A flying aeroplane _______________.
A ball of mass 0.5 kg slows down from a speed of 5 m/s so that of 3 m/s. Calculate the change in kinetic energy of the ball. State your answer giving proper units.
Name the device or machine which convert :
Mechanical energy into electrical energy.
Name the device or machine which convert :
Electrical energy into sound energy.
Name the device or machine which convert :
Chemical energy into heat energy.
What kind of energy transformations take place at a coal-based thermal power station?
A bulb lights up when connected to a battery. State the energy change which takes place :
Name the energy transfers which occur when : a torch is on
Which of the following energy change involves frictional force?
A girl with having a mass of 35 kg sits on a trolley of mass 5 kg. The trolley is given an initial velocity of 4 m s–1 by applying a force. The trolley comes to rest after traversing a distance of 16 m. (a) How much work is done on the trolley? (b) How much work is done by the girl?
