Advertisements
Advertisements
प्रश्न
State the energy transformation on the following:
Electricity obtained from hydro energy.
Advertisements
उत्तर
The Kinetic energy changes into electricity.
संबंधित प्रश्न
Give one relevant example for the following transformations of energy:
Chemical energy to heat energy.
A light mass and a heavy mass have equal momentum. Which will have more kinetic energy?
(Hint : Kinetic energy K = P2/2m where P is the momentum.)
What kind of energy is possessed in a situation when?
A stone lying on the top of roof.
State the energy changes which take place when:
A car moves up a hill.
State the energy changes which take place when:
Photographic film is exposed to sunlight.
Give one example when:
Electric energy changes to sound energy.
Calculate the kinetic energy of a body of mass 0.1 kg. and momentum 40kg m/s.
Match the pairs.
| Group 'A' | Group 'B' | ||
| (1) | Rolling object | (a) | Heat energy |
| (2) | Food | (b) | Atomic energy |
| (3) | Stretched bow | (c) | Kinetic energy |
| (4) | Sunlight | (d) | Potential energy |
| (5) | Uranium |
(e)
|
Chemical energy
|
