Advertisements
Advertisements
प्रश्न
State the energy changes which take place when:
A toy car spring is wound and car is made to run on level floor.
Advertisements
उत्तर
The mechanical energy changes to potential energy during winding. The potential energy is then released in the form of kinetic energy.
APPEARS IN
संबंधित प्रश्न
Two toy-cars A and B of masses 500 g and 200 g respectively are moving with the same speed. Which of the two has the greater kinetic energy?
Can a body possess energy even when it is not in motion ? Explain your answer with an example.
What is a solar cell?
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 horse running along a level road
Give two examples each of renewable and non-renewable sources of energy?
Give one example when:
Mechanical energy changes to electric energy.
Give one example when:
Chemical energy to electrical energy.
A body of mass 0.2 kg falls from a height of 10 m to a height of 6 m above the ground. Find the loss in potential energy taking place in the body. [g = 10ms−2]
