Physics IX Notes Chapter 6 Work Power and Energy
Q.2 Define energy? Also, give its different types?
Ans.
energy:- The ability of a body to do work is known as the energy it’s unit the same as
work that is jouled.
forms
of energy:- different types of energy are given below.
(1)
Chemical energy:- energy which is obtained
during chemical reaction and burning of substances is called chemical energy eg
burning of wood coal and petroleum etc.
(2)
Nuclear energy:-
that type of energy which produced during nuclear reaction is known as nuclear
energy for an example process of nuclear fission.
(3)
Radicand energy:=the energy of electromagnetic waves is called
radiant energy. for example radio waves microwaves x – rays etc have radiant energy.
(4)
Electrical energy:-that type of energy with the help of which we can operate different electrical equipment is called
electrical energy.
(5)
Internal energy:-the the energy of atoms and molecules which is usually in the formula kinetic energy
and potential energy is called internal energy.
(6)
Mechanical energy:-the the energy produced by moving parts of a machine is called mechanical energy.
(7)
Kinetic energy:-
the energy produced in a body during motion is called kinetic energy.
(8)
Potential energy:-energy
possessed by a body by virtue of its position is called potential energy
(9)
Heat energy: -a
form of energy which travellers from one body to another body due difference of
their temperature is called heat energy.
(10)Sound
energy:-the energy that gives the sensation of hearing is called sound energy.