Advertisements
Advertisements
प्रश्न
Name five different forms of energy.
Advertisements
उत्तर
The different forms of energy are :
(i) Mechanical energy
(ii) Heat energy
(iii) Light energy
(iv) Chemical energy
(v) Sound energy
(vi) Magnetic energy
(vii) Electrical energy and
(viii) Atomic energy or nuclear energy.
APPEARS IN
संबंधित प्रश्न
Give one example to show the conversion of potential energy to kinetic energy when put in use.
Name the two groups in which various sources of energy are classified. State on what basis are they classified.
What is hydro energy?
Name two examples in which the mechanical energy of a system remains constant.
Show that the quantity 2K/v2 has the unit of mass, where K is the kinetic energy of the body.
Write five forms of energy.
Give one example when:
Sound energy changes to electric energy.
A girl of mass 35 kg climbs up from the first floor of a building at a height 4 m above the ground to the third floor at a height 12 m above the ground. What will be the increase in her gravitational potential energy? [g = 10 ms-2]
A body of mass m falls from a height h1 to a height h2, above the ground (h1 > h2). What is the loss of potential energy?
