ICSE Class 9 Physics Syllabus 2026-27 — Complete Guide with 9 Chapters & Tips

What's New in 2026-27?

The ICSE Class 9 Physics syllabus for 2026-27 covers 9 chapters that build the conceptual foundation for Class 10 board-level Physics. The syllabus introduces students to fundamental concepts in mechanics, heat, light, sound, electricity, and magnetism. CISCE emphasises conceptual clarity and numerical problem-solving — students should focus on understanding principles and their applications rather than rote memorisation of definitions.

Physics carries 80 marks for the theory examination and 20 marks for Internal Assessment (practical work). Duration: 2 hours.

Syllabus Overview

Chapter No.	Chapter Name	Key Topics
1	Measurements and Experimentation	SI units, vernier callipers, pendulum, graphs
2	Motion in One Dimension	Distance, displacement, speed, velocity, acceleration, equations of motion
3	Laws of Motion	Newton's three laws, inertia, momentum, F=ma, action-reaction
4	Fluids	Pressure, Pascal's law, Archimedes' principle, buoyancy, floatation
5	Heat and Energy	Temperature, thermometers, calorimetry, specific heat, latent heat, change of state
6	Light	Reflection, laws of reflection, plane mirrors, image formation
7	Sound	Production, propagation, speed of sound, characteristics, reflection
8	Current Electricity	Electric current, potential difference, Ohm's law, resistance, circuits
9	Magnetism	Natural/artificial magnets, magnetic field, earth's magnetism

Chapter-wise Detailed Syllabus

1. Measurements and Experimentation

SI System: Fundamental and derived quantities. SI units — metre, kilogram, second, ampere, kelvin, candela, mole. Conversion between CGS and SI units.

Measuring Instruments: Vernier callipers — least count, zero error, reading measurements. Screw gauge (basic understanding).

Simple Pendulum: Time period, oscillation, frequency. Relationship between length and time period. Graphical analysis — L vs T² graph.

2. Motion in One Dimension

Scalar and vector quantities. Distance and displacement — difference. Speed and velocity — average and instantaneous. Acceleration — uniform and non-uniform. Equations of motion: v = u + at, s = ut + ½at², v² = u² + 2as. Distance-time and velocity-time graphs — interpreting slopes and areas. Free fall under gravity (g = 9.8 m/s²).

3. Laws of Motion

Newton's First Law (Inertia): Definition, types of inertia (rest, motion, direction). Examples from daily life.

Newton's Second Law: Force = mass × acceleration (F = ma). Unit of force — Newton. Momentum (p = mv) and its relation to force (F = Δp/Δt).

Newton's Third Law: Action and reaction — equal and opposite. Examples: recoil of gun, rocket propulsion, walking.

Concept of balanced and unbalanced forces. Friction — types, advantages, disadvantages, methods to reduce friction.

4. Fluids

Pressure: Definition (P = F/A), SI unit (Pascal). Pressure in liquids — increases with depth. Atmospheric pressure — barometer, manometer.

Pascal's Law: Pressure applied to an enclosed fluid is transmitted equally. Applications — hydraulic press, hydraulic brakes.

Archimedes' Principle: Upthrust/buoyant force equals weight of fluid displaced. Applications — ships, hydrometers, submarines.

Floatation: Conditions for floating, sinking, and neutral buoyancy. Laws of floatation. Density and relative density.

5. Heat and Energy

Temperature and Heat: Difference between heat and temperature. Thermometers — clinical, laboratory. Scales — Celsius, Fahrenheit, Kelvin. Conversion between scales.

Calorimetry: Specific heat capacity. Heat equation Q = mcΔT. Principle of calorimetry (heat lost = heat gained). Numerical problems on mixtures.

Change of State: Melting, freezing, boiling, condensation, evaporation, sublimation. Latent heat of fusion and vaporisation. Heating curve of water. Effect of pressure on melting and boiling points.

6. Light

Rectilinear propagation of light. Reflection — regular and diffuse. Laws of reflection. Image formation by plane mirrors — characteristics (virtual, erect, laterally inverted, same size). Multiple reflections — two plane mirrors at an angle. Periscope. Kaleidoscope.

7. Sound

Production of sound — vibration. Propagation — medium required (cannot travel in vacuum). Speed of sound in different media (solid > liquid > gas). Characteristics — pitch (frequency), loudness (amplitude), quality (timbre). Musical instruments and noise. Reflection of sound — echo, conditions for echo (minimum distance 17.2 m). Audible range (20 Hz - 20 kHz), ultrasound, infrasound.

8. Current Electricity

Electric current — flow of charges. Conventional current vs. electron flow. Potential difference — definition, unit (Volt). Ohm's Law — V = IR, graphical representation (V-I graph). Resistance — factors affecting (length, area, material, temperature). Ohmic and non-ohmic conductors. Simple electric circuits — series and parallel (basic).

9. Magnetism

Natural and artificial magnets. Properties of magnets — attractive, directive, poles always exist in pairs. Magnetic field — definition, field lines, plotting using compass. Magnetic field around a bar magnet. Earth's magnetism — geographic and magnetic poles, magnetic meridian, geographic meridian.

Exam Pattern 2026-27

Component	Details	Marks
Section I	Compulsory short-answer questions from all chapters	40 marks
Section II	Answer 4 out of 6 structured/long-answer questions	40 marks
Internal Assessment	Practical work, project, periodic tests	20 marks
Total		100 marks

Prescribed Textbooks

• Concise Physics Class 9 — Selina Publishers
• ICSE Physics for Class 9 — S. Chand Publishers
• Nootan ICSE Physics — Nageen Prakashan

Preparation Tips

1. Master the equations of motion — These three equations are the foundation of mechanics. Practise 20+ problems involving u, v, a, s, and t until you can select the right equation instantly.
2. Understand, don't memorise laws — Newton's laws, Archimedes' principle, and Ohm's law should be understood conceptually. Use real-world examples to cement understanding.
3. Draw clear diagrams — Ray diagrams for reflection, circuit diagrams, and force diagrams must be neat and labelled. Use a ruler and pencil.
4. Practise numerical problems daily — Solve 3-5 numericals per chapter per day. Show complete working with units. Physics numericals require practice, not just formula knowledge.
5. Learn unit conversions — Converting between CGS and SI units is frequently tested. Create a conversion reference card and practise until it's automatic.
6. Focus on Heat and Calorimetry — Calorimetry numericals (mixing hot and cold water/substances) are common. Master the heat equation and the principle of calorimetry.
7. Keep a formula notebook — Write every formula with its variables, units, and one example. Review this notebook before every test and exam.