UHA Physics Notes 9th Class
UHA Physics Notes 9th Class Chapter-1 Important short Question: 1. Define Physics? Ans: The study of matter, energy and their interaction is called physics. The law and principals of physics help us to understand nature. 2. What is plasma physics? Ans: It is study of production, properties of the ionic state of matter - the fourth state of matter. 3.What is physical quantities? write the name of its types. Ans: All measurable quantities are called physical quantities such as length, mass, time and temperature. Name of its type are given bellow Base quantities Derived quantities 4.Define Geophysics? Ans: It is the study of the internal structure of the Earth. 5. Define base quantity and derived quantity? OR Difference between base quantity and derived quantity? Ans: Base quantities: Base quantity are the quantities on the basis of which other...
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