make a list of physical quantities with direction and without direction
Answers
Explanation:
The first table lists the base quantities used in the International System of Units to define the physical dimension of physical quantities for [|dimensional analysis|]. The second table lists the [|derived physical quantities|]. [Derived quantities] can be mentioned in terms of the base quantities.
Answer:
This is a list of physical quantities.
The first table lists the base quantities used in the International System of Units to define the physical dimension of physical quantities for [|dimensional analysis|]. The second table lists the [|derived physical quantities|]. [Derived quantities] can be mentioned in terms of the base quantities.
Note that neither the names nor the symbols used for the physical quantities are international standards. 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 extensive
Mass m ration 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 extensive
Temperature T Average kinetic energy per degree of freedom of a system kelvin (K) Θ intensive, scalar
Amount of substance n The quantity proportional to the number of particles in a sample, with the Avogadro constant as the proportionality constant mole (mol) N extensive, scalar
Luminous intensity Iv Wavelength-weighted power of emitted light per unit solid angle candela (cd) J scalar
This list is incomplete; you can help by adding missing items with reliable sources.
Derived quantity Symbol Description SI derived unit Dimension Comments
Absement A Measure of sustained displacement: the first integral with respect to time of displacement m⋅s L T vector
Absorbed dose rate Absorbed dose received per unit of time Gy/s L2 T−3
Acceleration a→ Rate of change of velocity per unit time: the second time derivative of position m/s2 L T−2 vector
Angular acceleration ωa Change in angular velocity per unit time rad/s2 T−2
Angular momentum L Measure of the extent and direction of an object rotates about a reference point kg⋅m2/s M L2 T−1 conserved, bivector
Angular velocity ω The angle incremented in a plane by a segment connecting an object and a reference point per unit time rad/s T−1 bivector
Area A Extent of a surface m2 L2 extensive, bivector or scalar
Area density ρA Mass per unit area kg⋅m−2 M L−2 intensive
Capacitance C Stored charge per unit electric potential farad (F = C/V) M−1 L−2 T4 I2 scalar
Catalytic activity concentration Change in reaction rate due to presence of a catalyst per unit volume of the system kat⋅m−3 L−3 T−1 N intensive
Centrifugal force Fc Inertial force that appears to act on all objects when viewed in a rotating frame of reference N⋅rad = kg⋅m⋅rad⋅s−2 M L T−2 bivector
Chemical potential μ Energy per unit change in amount of substance J/mol M L2 T−2 N−1 intensive
Coldness β Inverse thermodynamics temperature 1/kB⋅T Θ intensive, scalar
Crackle c→ Change of jounce per unit time: the fifth time derivative of position m/s5 L T−5 vector
Current density J → Electric current per unit cross-section area A/m2 L−2 I conserved, intensive, vector
Dose equivalent H Received radiation adjusted for the effect on biological tissue sievert (Sv = m2/s2) L2 T−2 intensive
Dynamic viscosity v Measure for the resistance of an incompressible fluid to stress Pa⋅s M L−1 T−1 intensive
Electric charge Q The force per unit electric field strength coulomb (C = A⋅s) T I extensive, conserved
Electric charge density ρQ Electric charge per unit volume C/m3 L−3 T I intensive
Electric displacement field D→ Strength of the electric displacement C/m2 L−2 T I vector field
Electric field strength E→ Strength of the electric field V/m M L T−3 I−1 vector field
Electrical conductance G Measure for how easily current flows through a material siemens (S = Ω−1) M−1 L−2 T3 I2 scalar
Electrical conductivity σ Measure of a material's ability to conduct an electric current S/m M−1 L−3 T3 I2 scalar
Electric potential φ Energy required to move a unit charge through an electric field from a reference point volt (V = J/C) M L2 T−3 I−1 extensive, scalar