This book is intended as a general introduction to modern physics for science and
engineering students. It is written at a level which presurnes a prior tull year’s
course in classical physics, and a knowledge of elementary differential and
The material discussed here includes probability, relativity, quantum mechanics,
atomic physics, statistical mechanics, nuclear physics and elementary
Unit Two PHYSICS
Physics is the major science dealing with the fundamental constituents of the universe, the forces they exert on one another, and the results produced by these forces. Sometimes in modern physics a more sophisticated approach is taken that incorporates elements of the three areas listed above; it relates to the laws of symmetry and conservation, such as those pertaining to energy, momentum, charge, and parity. Physics is closely related to the other natural sciences and, in a sense, encompasses them. ...
1. Definition. 2. Classifications of Machine Design. 3. General Considerations in Machine Design. 4. General Procedure in Machine Design. 5. Fundamental Units. 6. Derived Units. 7. System of Units. 8. S.I. Units (Inter national System of Units). 9. Metre. 10. Kilogram. 11. Second. 12. Presentation of Units and their values. 13. Rules for S.I. Units. 14. Mass and Weight. 15. Inertia. 16. Laws of Motion. 17. Force. 18. Absolute and Gravitational Units of Force. 19. Moment of a Force. 20. Couple. 21. Mass Density. 22. Mass Moment of Inertia. 23. Angular Momentum. 24. Torque. 25. Work. 26.