Class IX Physics Guess Paper 2026

Chapter 1: Physical Quantities and Measurement

• Define Physics. Name and define branches of Physics.
• Define fundamental and derived physical quantities with examples.
• What is density? Give its formula and unit.

Chapter 2: Kinematics

• Define types of motion with examples.
• What are the three types of translatory motion?
• Differentiate between distance & displacement, speed & velocity, scalar & vector.
• What is acceleration? Give formula and unit.
• Derive second equation of motion: S = Vit + ½at²
• Derive third equation of motion: 2as = Vf² – Vi²

Chapter 3: Dynamics

• Define momentum with formula and SI unit.
• State and explain Law of Conservation of Momentum.
• Prove F = Δp/t
• What is inertia? State Newton’s 1st and 3rd laws.
• State Newton’s 2nd law and show F = ma.
• Differentiate between mass & weight, centripetal & centrifugal force.
• What is friction? Advantages and disadvantages.
• Ways to reduce friction.

Chapter 4: Turning Effect of Forces

• Define resolution of vector and derive rectangular components.
• Define resultant of vectors and direction.
• Define torque with formula and unit.
• State condition of equilibrium.
• States of equilibrium.
• Types of equilibrium with examples.

Chapter 5: Forces and Matter

• Define pressure with SI unit and formula.
• Two factors affecting pressure.
• State and explain Hooke’s Law.
• State Pascal’s Law.
• Hydraulic machine and working of hydraulic press.

Chapter 6: Gravitation

• State and explain Newton’s law of gravitation.
• Characteristics of gravitational force.
• Differentiate between G & g, natural & artificial satellite.
• Derive mass of Earth using gravitational formula.
• Derive V² = GM/(R + h)

Chapter 7: Properties of Matter

• Discuss kinetic theory of gases.
• What is Brownian motion? State Boyle’s Law.

Chapter 8: Energy Sources and Transfer of Energy

• Define work with formula and unit.
• Define energy. Differentiate kinetic and potential energy.
• State law of conservation of energy.
• Differentiate renewable and non-renewable energy.
• Define wind energy with applications.
• Define power with formula and unit.
• Derive P.E = mgh
• Derive K.E = ½mv²

Chapter 9: Thermal Properties of Matter

• Differentiate heat and temperature.
• Differentiate boiling point and evaporation.
• Define evaporation and factors affecting it.
• Define thermal expansion and linear expansion.
• Define volumetric expansion.
• Short note on bimetallic thermostat and rivets.

Important Numericals

• Convert radius of hydrogen atom into km, mm, micrometer.
• Distance covered by train (36 km/h in 3 hours).
• Acceleration of car from rest.
• Final velocity of bus.
• Velocity before hitting ground.
• Maximum height of vertically thrown body.
• Recoil of gun.
• Acceleration using F = ma.
• Speed in circular motion.
• Momentum calculation.
• Force and acceleration problem.
• Weight on Earth, Moon and Mars.
• Centripetal force and acceleration.
• Horizontal and vertical components of force.
• Resultant force.
• Torque calculation.
• Spring extension using Hooke’s Law.
• Pressure in water.
• Pressure using force and area.
• Pressure under sea.
• Hydraulic lift calculation.
• Hydraulic press problem.
• Gravitational force between masses.
• Mass from weight.
• Gravity on another planet.
• Satellite speed.
• Boyle’s law problem.
• Work done calculation.
• Kinetic energy problems.
• Potential energy calculation.
• Power calculation.
• Efficiency calculation.
• Temperature conversions.
• Specific heat capacity.
• Heat required.
• Heat capacity.
• Linear expansion.