Advertisements
Advertisements
प्रश्न
State the energy changes which take place when:
A magnesium ribbon burns in air.
Advertisements
उत्तर
During the burning of magnesium, chemical energy changes to heat and light energy.
संबंधित प्रश्न
(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.
Name five different forms of energy.
Give one example of a body that has potential energy, due to its position at a height.
Give one relevant example for the following transformation of energy:
Electrical energy to mechanical energy.
Give one example to show that the sum of potential energy and kinetic energy remains constant if friction is ignored.
Name the two groups in which various sources of energy are classified. State on what basis are they classified.
Name the energy changes for the following
human body
Write the type of energy possessed in the following case:
A bent bow
Write the type of energy possessed in the following case:
A wound-up spring
Name a device in which solar energy is converted into electricity state its two uses.
