Class 9th ICSE

Physics ICSE Class 9th Syllabus:-

1. Measurements and Experimentation:-

(i) International System of Units, the required SI units with correct symbols are given at the end of this syllabus. Other commonly used system of units – fps and cgs.

(ii) Measurements using common instruments, Vernier callipers and micro-metre screw gauge for length, and simple pendulum for time.

2. Motion in One Dimension: Scalar and vector quantities, distance, speed, velocity, acceleration; graphs of distance-time and speed-time; equations of uniformly accelerated motion with derivations.

3. Laws of Motion:

(i) Contact and non-contact forces; c g s & SI units.

(ii) Newton’s First Law of Motion (qualitative discussion) introduction of the idea of inertia, mass and force (iii)Newton’s Second Law of Motion (including F=ma); weight and mass.

(iv) Newton’s Third Law of Motion (qualitative discussion only); simple examples.

(v) Gravitation.

4. Fluids:

(i) Change of pressure with depth (including the formula p=hρg); Transmission of pressure in liquids; atmospheric pressure.

(ii) Buoyancy, Archimedes’ Principle; floatation; relationship with density; relative density; determination of relative density of a solid.

5. Heat and Energy:

(i) Concepts of heat and temperature

(ii) Anomalous expansion of water; graphs showing variation of volume and density of water with temperature in the 0 to 10°C range. Hope’s experiment and consequences of Anomalous expansion.

(iii)Energy flow and its importance

(iv) Energy sources.

(v) Global warming and Green House effect.

6. Light:

(i) Reflection of light; images formed by a pair of parallel and perpendicular plane mirrors

(ii) Spherical mirrors; characteristics of image formed by these mirrors. Uses of concave and convex mirrors. (Only simple direct ray diagrams are required).

7. Sound:

(i) Nature of Sound waves. Requirement of a medium for sound waves to travel; propagation and speed in different media; comparison with speed of light.

(ii) Infrasonic, sonic, ultrasonic frequencies and their applications.

8. Electricity and Magnetism:

(i) Simple electric circuit using an electric cell and a bulb to introduce the idea of current (including its relationship to charge); potential difference; insulators and conductors; closed and open circuits; direction of current (electron flow and conventional)

(ii) Induced magnetism, Magnetic field of earth. Neutral points in magnetic fields.

(iii)Introduction of electromagnet and its uses.