GK
PHYSICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
physical quantities
|
|
|
base quantities
|
|
|
derived quantities
|
|
|
scalar quantities
|
Detailed explanation-1: -Derived quantities are physical quantities derived from combinations of base quantities through multiplication.
Detailed explanation-2: -Area, speed, volume, force, etc are examples of derived quantities.
Detailed explanation-3: -These are called derived units.
Detailed explanation-4: -The present SI has seven base quantities: time, length, mass, electric current, thermodynamic temperature, amount of substance, and luminous intensity.
Detailed explanation-5: -Base units are defined by a particular process of measuring a base quantity whereas derived units are defined as algebraic combinations of base units. b. A base quantity is chosen by convention and practical considerations. Derived quantities are expressed as algebraic combinations of base quantities.