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Home Physics 9th

Physics IX Notes Chapter 6 Work Power and Energy

December 25, 2020
in Physics 9th
0

 Physics IX Notes Chapter 6 Work Power and Energy

Physics


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.



PDF Full Chapter 6 Conceptual question and numerical problems.



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