Advertisements
Advertisements
प्रश्न
Give one relevant example for the following transformation of energy :
Chemical energy to light energy.
उत्तर
Fire crackers burst
APPEARS IN
संबंधित प्रश्न
How many MeV are equivalent to 1 atomic mass unit (u)?
Name the type of energy (kinetic energy K or potential energy U) possessed in the given case:
An arrow shot out of a bow.
State different forms of potential energy and give one example of each.
Write an expression for the potential energy of a body of mass m placed at a height h above the earth's surface. State the assumptions made, if any.
State two disadvantages of producing electricity from solar energy.
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?
State the energy changes which take place when:
An air gun is loaded and then fired.
Give one example when:
Heat energy changes to kinetic energy.
A ball of mass 50 g falls from a height of 2m and rebounds from the ground to 1.6 m. Find:
(i) The potential energy possessed by the ball when initially at rest.
(ii) The kinetic energy of the ball before it hits the ground.
(iii) The final potential energy of the ball.
(iv) The loss in kinetic energy of the ball on collision. (Take: g = 10N kg−1)
