Advertisements
Advertisements
प्रश्न
State the energy changes which take place when:
A stone projected vertically upwards, returns back to the thrower.
Advertisements
उत्तर
The kinetic energy changes to potential energy when stone rises up. The potential energy then changes back to kinetic energy, when stone comes down.
संबंधित प्रश्न
What is nuclear energy?
Select the renewable and non-renewable sources of energy from the following:
Wind
Name three non-renewable sources of energy.
State two disadvantages of producing electricity from solar energy.
What is dissipation of energy?
Name a device in which solar energy is converted into electricity state its two uses.
State the energy changes which take place when:
Electricity obtained from nuclear energy.
A boy sits and stands repeatedly. Draw a graph showing the variation of potential energy with time.
Calculate the change in the Kinetic energy of a moving body if its velocity is reduced to 1/3rd of the initial velocity.
When and why do clothes smell of naphthalene?
