Assignment 1 BASED ON UNITS 1 What is a physical quantity? ANS Any quantity which can be measured is called a physical quantity. 2. What is a unit? ANS A certain basic, arbitrarily chosen, internationally accepted standard of reference for making measurements of a physical quantity is called a unit. 3. Which are fundamental or basic units? ANS The unit of fundamental quantities is called fundamental units 4. What are derived units? ANS The units of derived quantities that can be expressed as combination of basic units are called derived units. 5. What is meant by SI system? ANS SI system means the international system of units, containing seven basic units. 6. Name the system of units accepted internationally. ANS SI system 7. Give the basic units of length in CGS / MKS / FPS / SI system. ANS Centimeter / meter / foot / meter respectively. 8. Given the base units of mass in CGS / MKS / FPS / SI system. ANS gram / kilogram / pound / kilogram respectively. 9. Name t
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