Advertisements
Advertisements
प्रश्न
Give one example when:
Mechanical energy to heat energy.
उत्तर
Rubbing of palms.
APPEARS IN
संबंधित प्रश्न
State the energy change in the following device while in use:
A loudspeaker
(i) The conversion of part of the energy into an undesirable form is called ______________.
(ii) For a given height h, __________________ the length l of the inclined plane, lesser will be the effort required.
Give one example of a body that has potential energy, in due to its state.
State the energy changes in the following case while in use:
a ceiling fan
What is the main source of energy for earth?
What is hydro energy?
What is the main energy transformation that occur in:
Charging of a battery.
Name the two groups in which various sources of energy are classified?
State the energy changes which take place when:
Photographic film is exposed to sunlight.
For the same kinetic energy of a body, what should be the change in its velocity if its mass is increased nine times?
