WBBSE Solutions for Class 9 Physical Science and Environment May 30, 2023April 29, 2023 by Sainavle Chapter 1 Measurement Topic A Measurement And Units Topic B Dimension Topic C Measurement Of Different Physical Quantities And Errors In Measurement Chapter 2 Force and Motion Topic A Rest Motion And Equation Of Motion Topic B Newtons First And Second Laws Of Motion Topic C Newtons Third Law Of Motion And Law Of Conservation Of Linear Momentum Chapter 3 Matter: Structure and Properties Topic A Pressure Of Liquids And Air Archimedes Principle Topic B Surface Tension Topic C Viscosity And Bernoullis Theorem Topic D Elasticity Chapter 4 Matter: Atomic Structure, Physical and Chemical Properties of Matter Matter Concept Of Mole Matter Solution Matter Acids Bases And Salts Matter Nuclear Force Matter Separation Of The Components Of Mixture Matter Water Matter Concept Of Atom Matter Rutherfords Atomic Model And Discovery Of Neutron Matter Bohr Rutherfords Atomic Model Chapter 5 Work, Power and Energy Work Power Energy Chapter 6 Heat Equivalence Of Work And Heat Latent Heat Calorimetry Saturated Unsaturated Vapour And Anomalous Expansion Of Water Chapter 7 Sound Some Properties Of Sound And Characteristics Of Sound Sources Of Sound And Propagation Of Sound Human Ear And Sound Pollution
