Viva ICSE Physics, Class 10

Contents:

Chapter 1. Force, Turning Force, Centre of Gravity and Uniform Circular Motion • Force • Contact force • Some examples of the contact force • Noncontact force or action-at-a-distance force • Some examples of the noncontact (or action-at-a-distance) force • Units of force • Translational and rotational motions • Turning force • Clockwise and anticlockwise moments • Some applications of moment of force • Principle of moments • Verifying the principle of moments • Conditions for a body to be in equilibrium • Couple • Centre of gravity • Uniform circular motion • Centripetal and centrifugal force

Chapter 2. Machines as Force Multipliers • Some technical terms related to machines • Relationship between efficiency, mechanical advantage and velocity ratio for an ideal machine • Classification of machines • Levers • Pulleys • Combination of pulleys • Gear (Toothed Wheel) • Inclined plane

Chapter 3. Work, Energy and Power • Work • Work done when the force is not along the direction of motion • Energy • Different forms of energy • Kinetic energy • Potential energy • Are various forms of energy interconvertible: Transformation of energy • The simple pendulum: An example of the conservation of mechanical energy • Conservation of energy • Rate of doing work : Power

Chapter 4. Refraction of Light at Plane Surfaces • Refraction of light • Multiple images in thick glass plate/mirror • Refraction through a prism • Some optical phenomena due to refraction of light • Effects of refraction of light travelling from a rarer medium to a denser medium • Refractive index in terms of real and apparent depth • Critical angle and total internal reflection • Total internal reflection in prisms • Refraction of light through 30-, 60- and 90- prisms • Total internal reflection vs reflection from a plane mirror

Chapter 5. Refraction through Lenses and Dispersion of Light • Lenses • Converging and diverging action of lenses • Terminology for lenses • Formation of images by a convex lens • Experimental determination of focal length of a convex lens • Formation of images by a concave lens • Magnification by lenses • Power of a lens • Simple microscope • Dispersion of white light • Pure and impure spectrum • Light as electromagnetic radiation • Properties and uses of different radiations

Chapter 6. Sound • Speed of sound • Sound travels slower than lightning and thunder • Reflection of sound waves • Echo • Reverberation • Practical applications (or uses) of multiple reflection of sound • Audible range • Ultrasound • Applications of ultrasound • Vibrations • Resonance (or sympathetic vibrations) • Musical sound and noise • Characteristics of musical sound • Loudness or intensity of sound • Pitch or shrillness of sound • Quality of sound • Sound pollution

Chapter 7. Current Electricity • Electricity • Conductors and insulators • Potential due to a charge • Electric current • charges in motion • Electromotive force (emf) and terminal voltage of a cell • Internal resistance of a cell • Electric circuits and circuit diagrams • Ohm's law • Ohmic conductors, nonohmic conductors and super conductors • Resistance and resistivity of a conductor • Combination of resistances • Electrical energy and electrical power • Heating effect of current • Generation of electricity • Electricity used at home — domestic electric circuits • The electric fuse — a safety device • The electrical switches • Earthing of electrical appliances • Wiring of the household circuits • The tree system of wiring • The ring system of wiring • Hazards of electricity and safety in its use

Chapter 8. Magnetic Effects of Current-Electromagnetism • Magnetic effects of current -electro magnetism • Magnetic field due to a straight current—carrying conductor • Magnetic field due to a current-carrying circular coil (or circular wire) • Magnetic field produced by a current-carrying solenoid • Electromagnet • Electric bell • Force on a current-carrying conductor in a magnetic field • Electric motor • Electromagnetic induction—magnetism produces electricity • Electric generators (dynamos) • AC generator (or alternator) • Distinction between a dynamo and motor (DC) • Transformer

Chapter 9. Heat • Heat • Temperature • Thermometers • Temperature scales • Specific heat capacity • Heat capacity (or thermal capacity) • Principle of calorimetry • Measurement of specific heat capacity of a solid • Measurement of specific heat capacity of a liquid • Change of state (or phase) • Latent heat

Chapter 10. Modern Physics-1: Thermionic Emission • Emission of electrons from metals • Thermionic Emission • Hot cathode ray tube

Chapter 11. Modern Physics-2: Atomic Structure and Radioactivity • Structure of the atomic nucleus: A review • Radioactivity • Radiations from radioactive materials • Changes within the nucleus • Alpha emission • Beta emission (-emission) • Gamma emission • Uses of radioactivity • Harmful effects of radioactivity • Safety measures against radioactive pollution • Background radiations • What are X-rays • Nuclear Fission • Nuclear Fusion • Nuclear Hazards and Safety Measures

About the Authors:

Dr. S. K. Jain did his postgraduation from IIT Delhi and PhD from University of Delhi. He specializes in Physical Chemistry and takes special interest in Electrochemistry and Energy Conversion. He has published over fifty research papers in journals of international repute. Dr. Jain has visited several countries on research assignments as Research Associate and also as Visiting Scientist. He has written many textbooks for school and college students.

Dr. Shailesh K. Jain did his postgraduation from IIT Kanpur and PhD from United Kingdom. He specializes in the field of Heterogeneous Catalysis and has special interest in the field of Analytical Chemistry related to the metallurgical operations. He has published several research papers and co-authored many textbooks for school and college students. He is involved actively in the popularization of Science at School/undergraduate levels.