Sindh Class 9 Physics Notes All Chapters Pdf Download

Sindh Class 9 | Grade 9 Physics notes containing numerical, short questions, long questions, and multiple-choice questions.

Sindh Class 9 Physics Notes

Q.1 what is physics? Also, describe its important branches?

PHYSICS :> The branch of science which deals with the study of properties, energy, and their mutual relationship is called physics”

Some important branches of physics are given below:

Mechanics:-It deals with the motion of bodies under the action of force.
Heat and thermodynamics:-It deals with the study of nature, properties. and uses of heat energy. And also deals with transformation of heat energy from one for to another form.
Optics:- it deals with the prorogation, reflection, refraction, dispersion and wave properties of light.
Electricity and magnetism:- it deals with the study of charges at rest as well as in motion.
Atomic physics:-it deals with the structure and properties of individual atom.
Nucleus physics:- it deals with the structure and properties of nuclease of an atom.
Solid state physics:-it deals with the properties of matter in solid state.
Particle physics:- it deals with the study of elementary particles.
Plasma physics:-which is the fourth state of matter. And occurs in ionized state.
Quantum physics:-quanta is studied is this branch which is the discrete and individuals particle of energy.
Semiconductor physics:- whose properties lie b/w conductor and insulator.
Astro physics:- it deals with the study of heavenly bodies.
Bio physics:- study of biology based on the principle of physics is called bio physics.
Geo physics:- it deals with the study of earth and atmospheric.
Health physics:- it deals with the study of diseases and their treatment.