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Quantities

Physical quantities, their definitions, symbols, and measurement units across Parts 3–13.

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Electromagnetism

Light and Radiation

Physical Chemistry

Atomic and Nuclear

Characteristic Numbers

Condensed Matter

Information Science

765 entries

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765

l

L

m

b

B

m

h

H

m

d

δ

m

d

D

m

r

R

m

s

m

d

r

m

radial distance|

r_{Q}

ρ

m

position vector|

r

m

Δ r

m

radius of curvature|

ρ

m

κ

m^{- 1}

A

S

m^{2}

V

(S)

m^{3}

angular measure|

α

β

γ

r a d

1

rotational displacement|

ϑ

ϕ

r a d

1

φ

ϕ

r a d

1

solid angular measure|

Ω

s r

1

t

s

v

(v)

u, v, w

(u, v, w)

m \cdot s^{-} 1

v

(v)

m \cdot s^{-} 1

a

m \cdot s^{-} 2

angular velocity|

ω

r a d \cdot s^{- 1}

s^{- 1}

angular acceleration|

α

r a d \cdot s^{- 2}

s^{- 2}

period duration|

T

s

τ

T

s

N

1

f

ν

H z

s^{- 1}

rotational frequency|

n

s^{- 1}

angular frequency|

ω

r a d \cdot s^{- 1}

s^{- 1}

λ

m

σ

\tilde{v}

m^{- 1}

k

m^{- 1}

angular repetency|

k

m^{- 1}

phase velocity|

c, v, (v)

c_{φ}, v_{φ}, (v_{φ})

m \cdot s^{-} 1

group velocity|

c_{g}, v_{g}, (v_{g})

m \cdot s^{-} 1

damping coefficient|

δ

s^{-} 1

logarithmic decrement|

Λ

1

α

m^{- 1}

phase coefficient|

β

r a d \cdot m^{- 1}

m^{- 1}

propagation coefficient|

γ

m^{- 1}

m

k g

ρ

ρ_{m}

k g \cdot m^{- 3}

specific volume|

v

k g^{- 1} \cdot m^{3}

relative mass density|

d

1

surface mass density|

ρ_{A}

k g \cdot m^{- 2}

linear mass density|

ρ_{l}

k g \cdot m^{- 1}

moment of inertia|

J

k g \cdot m^{2}

p

k g \cdot m \cdot s^{- 1}

F

N

k g \cdot m \cdot s^{- 2}

F_{g}

N

k g \cdot m \cdot s^{- 2}

static friction force|

F_{s}

N

k g \cdot m \cdot s^{- 2}

kinetic friction force|

F_{μ}

N

k g \cdot m \cdot s^{- 2}

rolling resistance|

F_{rr}

N

k g \cdot m \cdot s^{- 2}

F_{D}

N

k g \cdot m \cdot s^{- 2}

I

N \cdot s

k g \cdot m \cdot s^{- 1}

angular momentum|

L

k g \cdot m^{2} \cdot s^{- 1}

moment of force|

M

N \cdot m

k g \cdot m^{2} \cdot s^{- 2}

T

M_{Q}

N \cdot m

k g \cdot m^{2} \cdot s^{- 2}