NAME THEE PHYSICAL QUANTITIES
Answers
Answer:
Explanation:
Quantities that can be measured are called physical quantities.
there are two types of it:scalar and vector
Scalars have only magnitude no direction. Eg: Mass,Length,Time
Vectors Have both magnitude and direction. Eg: Displacement,Velocity
Answer:
Explanation:
Note that neither the names nor the symbols used for the physical quantities are international standards. Physics is built on the basis of modern mathematical knowledge therefore evolve from time to time.Some quantities are known as several different names such as the magnetic B-field which known as the magnetic flux density, the magnetic induction or simply as the magnetic field depending on the context. Similarly, surface tension can be denoted by either σ, γ or T. The table usually lists only one name and symbol.
The final column lists some special properties that some of the quantities have, such as their scaling behavior (i.e. whether the quantity is intensive or extensive), their transformation properties (i.e. whether the quantity is a scalar, vector or tensor), and whether the quantity is conserved.
Base quantity Symbol Description SI base unit Dimension Comments
Length l The one-dimensional extent of an object metre (m) L
Mass m A measure of resistance to acceleration kilogram (kg) M extensive, scalar
Time t The duration of an event second (s) T scalar
Electric Current I Rate of flow of electrical charge per unit time ampere (A) I
Temperature T Average kinetic energy per degree of freedom of a system kelvin (K) Θ intensive, scalar
Amount of substance n
Number of particles compared to the number of atoms in 0.012 kg of 12C mole (mol) N extensive, scalar
Luminous intensity L Wavelength-weighted power of emitted light per unit solid angle candela (cd) J scalar