CHAPTER 1 PHYSICAL WORLD
Physics deals with the study of the basic laws of nature and their manifestation in different phenomenon. The basic laws of physics are universal and apply in widely different contexts and conditions.
There are two domains of interest in physics: macroscopic and microscopic. The macroscopic domain includes phenomena at the laboratory, terrestrial and astronomical scales. The microscopic domain includes atomic, molecular and nuclear phenomena.
FUNDAMENTAL TYPES OF FORCES
The physical quantities that remain unchanged in a process are called conserved quantities. Some of the general conservation laws in nature include the laws of conservation of mass, energy, linear momentum, angular momentum, charge, parity, etc.
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