Advertisements
Advertisements
प्रश्न
Give one example to show that the sum of potential energy and kinetic energy remains constant if friction is ignored.
Advertisements
उत्तर
During the vertical fall of ball, if friction due to air is neglected, the total sum of potential energy and kinetic energy at each point of its path remains same.
APPEARS IN
संबंधित प्रश्न
Name the process used for producing electricity using nuclear energy.
Write true or false of the following statement.
The energy of flowing water can be converted into electric energy (electricity).
A pebble is thrown up. It goes to a height and then comes back on the ground. State the different changes in form of energy during its motion.
Write five forms of energy.
Is it possible that a body may possess energy even when it is not in motion?
What kind of energy is possessed in a situation when?
A cocked up spring of air gun.
What kind of energy is possessed in a situation when?
A horse running along a level road
Give one example when:
Electric energy changes to mechanical energy.
Give one example when:
Electrical energy to heat energy.
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]
