ICSE Class IX Selina Solutions Concise Physics Class 9 ICSE

Selina Solutions Concise Physics Class 9 ICSE

Chapter 1: Measurements and Experimentation

This foundational chapter covers the principles of physical measurements, including SI units, significant figures, and error analysis. Students will learn to use vernier calipers, screw gauges, and other lab instruments while understanding the importance of precision and accuracy in scientific experiments. Key topics include measurement techniques, dimensional analysis, and the scientific method.

Chapter 2: Motion in One Dimension

Explore linear kinematics through concepts like displacement, velocity, and acceleration. This chapter introduces graphical analysis of motion (position-time and velocity-time graphs) and derives the three equations of uniformly accelerated motion. Real-world applications include free-fall problems and motion under gravity.

Chapter 3: Laws of Motion

Dive into Newton’s three laws of motion, inertia, momentum, and force. Learn to draw free-body diagrams, solve problems involving friction and tension, and apply conservation principles. Practical examples cover equilibrium conditions, rocket propulsion, and everyday phenomena like seatbelt safety.

Chapter 4: Pressure in Fluids and Atmospheric Pressure

Understand Pascal’s principle, hydrostatic pressure, and how depth affects fluid pressure. This chapter explains manometers, barometers, and hydraulic systems while linking atmospheric pressure to weather patterns. Applications include submarine design and blood pressure measurement.

Chapter 5: Upthrust in Fluids, Archimedes’ Principle, and Floatation

Discover why objects float or sink using Archimedes’ principle, buoyant force, and relative density. Solve problems involving floating bodies, ship design, and hydrometers. Real-world connections include hot-air balloons and the Dead Sea’s buoyancy effects.

Chapter 6: Heat and Energy

Study thermal energy transfer through conduction, convection, and radiation. Key topics include specific heat capacity, latent heat, and calorimetry. Applications range from household insulation to climate science, with emphasis on energy conservation.

Chapter 7: Reflection of Light

Master laws of reflection, image formation in plane/spherical mirrors, and uses of concave/convex mirrors. Learn ray diagrams, mirror formulas, and applications like periscopes, telescopes, and solar cookers.

Chapter 8: Propagation of Sound Waves

Analyze sound wave characteristics: frequency, wavelength, speed, and echo. Explore human hearing range, ultrasound applications (sonar, medical imaging), and factors affecting sound propagation in different media.

Chapter 9: Current Electricity

Build circuits using Ohm’s law, resistance, and Kirchhoff’s laws. Compare series/parallel circuits, study electrical power, and safety devices like fuses. Hands-on examples include household wiring and battery configurations.

Chapter 10: Magnetism

Investigate magnetic fields, electromagnets, and Faraday’s laws. Applications cover electric motors, generators, and MRI machines. Link magnetism to Earth’s geomagnetic field and compass navigation.