CBSE Class 9 Biology -Study Notes Chapter Wise

Course Overview

CBSE Class 9 Physics Syllabus


  • Uniform motion and non uniform motion on along a straight line
  • Measuring the rate of motion
  • Rate of change of velocity
  • Graphical representation of motion
  • Equation of motion by graphical method
  • Uniform circular motion

Work and Energy

  • Work
  • Energy
  • Potential energy of an object at a hieght
  • Law of conservation of energy
  • Rate of doing work: power

Force and laws of motion

  • Force and motion
  • First law of motion
  • Second law of motion
  • Inertia and mass
  • Mathematical formulation of second law of motion
  • Third law of motion
  • Conservation of momentum


  • Gravitation
  • Universal law of gravitation
  • Free fall
  • Mass and weight
  • Thurst and pressure
  • Buoyancy
  • Archimedes principle
  • Relative density


  • Production of sound, Propagation of sound
  • Characteristics of sound wave
  • Speed of sound in different medium
  • Reflection of sound
  • Reverberation
  • Application of ultrasound
  • Range of hearing, Structure of human ear

Best Reference Books for CBSE Class 9 Science besides NCERT Textbooks:

  • NCERT Textbook for Class 9 Science
  • NCERT Exemplar for Class 9 Science
  • Science for Class 9: Physics (by Lakhmir Singh & Manjit Kaur)
  • Foundation Science Physics for Class – 9: by H.C. Verma (Author) [Refer this books if you are preparing for Olympiad or NTSE]
  • Science for Class 9: Chemistry (by Lakhmir Singh & Manjit Kaur)
  • Science for Class 9th Biology (By Lakhmir Singh & Manjit Kaur)
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