Physquantities
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Length or Distance Time Mass Volume Density Velocity Acceleration Momentum Force Weight Pressure or Stress Energy or Work Kinetic Energy Potential Energy Power Impulse Action Angle Cycles Frequency Angular Velocity Angular Acceleration Moment of Inertia Angular Momentum Torque or Moment Temperature Heat Entropy Electric Charge +/− Current Voltage or Potential Resistance Capacitance Inductance Electric Field Electric Flux Magnetic Field Magnetic Flux fundamental fundamental fundamental distance 3 Area distance 2 mass / volume distance / time velocity / time mass × velocity mass × acceleration mass × acceleration of gravity force / area force × distance mass × velocity 2 / 2 mass × acceleration of gravity × height energy / time force × time energy × time momentum × distance fundamental fundamental cycles / time angle / time angular velocity / time mass × radius 2 radius × momentum moment of inertia radius × force moment of inertia fundamental heat energy heat / temperature fundamental charge / time energy / charge voltage / current charge / voltage voltage / (current / time) voltage / distance force / charge electric field × area force / (charge × velocity) magnetic field × area V = d 3 A = d 2 d = m/V v = d/t a = v/t p = m·v F = m·a W = m·g p = F/A E = F·d KE = m·v 2 /2 PE = m·g·h P = E/t I = F·t S = E·t S = p·d θ n f = n/t ω = θ/t α = ω/t I = m·r 2 L = r·p L = I·ω τ = r·F τ = I·α T Q S = Q/T q i = q/t V = E/q R = V/i C = q/V L = V/(i/t) E = V/d E = F/q Φ E = E·A B = F/(q·v) Φ M = B·A m 3 m 2 kg/m 3 m/s c (speed of light) m/s 2 kg·m/s N (newton) = kg·m/s 2 Pa (pascal) = N/m 2 = kg/(m·s 2 ) J (joule) = N·m = kg·m 2 /s 2 W (watt) = J/s = kg·m 2 /s 3 N·s = kg·m/s J·s = kg·m 2 /s ° (degree), rad (radian), rev 360° = 2π rad = 1 rev cyc (cycles) Hz (hertz) = cyc/s = 1/s rad/s = 1/s rad/s 2 = 1/s 2 kg·m 2 J·s = kg·m 2 /s ħ (quantum of angular momentum) N·m = kg·m 2 /s 2 °C (celsius), K (kelvin) J (joule) = kg·m 2 /s 2 J/K C (coulomb) e (elementary charge) A (amp) = C/s V (volt) = J/C Ω (ohm) = V/A F (farad) = C/V H (henry) = V·s/A V/m = N/C V·m = N·m 2 /C T (tesla) = Wb/m 2 = N·s/(C·m) Wb (weber) = V·s = J·s/C L 3 L 2 M/L 3 L/T L/T 2 ML/T ML/T 2 M/LT 2 ML 2 /T 2 ML 2 /T 3 ML/T ML 2 /T dimensionless dimensionless 1/T 1/T 1/T 2 ML 2 ML 2 /T ML 2 /T 2 K (Temp.) ML 2 /T 2 ML 2 /T 2 K Q (Charge) Q/T ML 2 /QT 2 ML 2 /Q 2 T Q 2 T 2 /ML 2 ML 2 /Q 2 ML/QT 2 ML 3 /QT 2 M/QT ML 2 /QT d t m m (meter) s (second) kg (kilogram) L (Length) T (Time) M (Mass) × angular acceleration × angular velocity Basic Mechanical Rotational Mechanical Electromagnetic Thermal Quantity Formula Units Dimensions Definition Mass, energy, momentum, angular momentum, and charge are conserved, which means the total amount does not change in an isolated system. Note: Other conventions define different quantities to be fundamental. h (quantum of action) Physical Quantities thinkzone.wlonk.com
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VIII Factors . Physics
Transcript of Physquantities
Length or DistanceTimeMass
VolumeDensityVelocity
AccelerationMomentumForce
WeightPressure or StressEnergy or Work
Kinetic EnergyPotential Energy
PowerImpulseAction
Angle
CyclesFrequencyAngular VelocityAngular AccelerationMoment of InertiaAngular Momentum
Torque or Moment
TemperatureHeatEntropy
Electric Charge +/−
CurrentVoltage or PotentialResistanceCapacitanceInductanceElectric Field
Electric FluxMagnetic FieldMagnetic Flux
fundamentalfundamentalfundamental
distance3Area distance2
mass / volumedistance / time
velocity / timemass × velocitymass × accelerationmass × acceleration of gravityforce / areaforce × distancemass × velocity2 / 2mass × acceleration of gravity
× heightenergy / timeforce × timeenergy × timemomentum × distancefundamental
fundamentalcycles / timeangle / timeangular velocity / timemass × radius2
radius × momentummoment of inertia
radius × forcemoment of inertia
fundamentalheat energyheat / temperature
fundamental
charge / timeenergy / chargevoltage / currentcharge / voltagevoltage / (current / time)voltage / distanceforce / chargeelectric field × areaforce / (charge × velocity)magnetic field × area
V = d3A = d2
d = m/Vv = d/t
a = v/tp = m·vF = m·aW = m·gp = F/AE = F·dKE = m·v2/2PE = m·g·h
P = E/tI = F·tS = E·tS = p·dθ
nf = n/tω = θ/tα = ω/tI = m·r2
L = r·pL = I·ω
τ = r·Fτ = I·α
TQS = Q/T
q
i = q/tV = E/qR = V/iC = q/VL = V/(i/t)E = V/dE = F/qΦE = E·AB = F/(q·v)ΦM = B·A
m3m2
kg/m3
m/sc (speed of light)m/s2
kg·m/sN (newton) = kg·m/s2
Pa (pascal) = N/m2 = kg/(m·s2)J (joule) = N·m = kg·m2/s2
W (watt) = J/s = kg·m2/s3
N·s = kg·m/sJ·s = kg·m2/s
° (degree), rad (radian), rev360° = 2π rad = 1 revcyc (cycles)Hz (hertz) = cyc/s = 1/srad/s = 1/srad/s2 = 1/s2
kg·m2
J·s = kg·m2/sħ (quantum of angular momentum)
N·m = kg·m2/s2
°C (celsius), K (kelvin)J (joule) = kg·m2/s2
J/K
C (coulomb)e (elementary charge)A (amp) = C/sV (volt) = J/CΩ (ohm) = V/AF (farad) = C/VH (henry) = V·s/AV/m = N/C
V·m = N·m2/CT (tesla) = Wb/m2 = N·s/(C·m)Wb (weber) = V·s = J·s/C
L3L2
M/L3
L/T
L/T2
ML/TML/T2
M/LT2
ML2/T2
ML2/T3
ML/TML2/T
dimensionless
dimensionless1/T1/T1/T2
ML2
ML2/T
ML2/T2
K (Temp.)ML2/T2
ML2/T2K
Q (Charge)
Q/TML2/QT2
ML2/Q2TQ2T2/ML2
ML2/Q2
ML/QT2
ML3/QT2
M/QTML2/QT
dtm
m (meter)s (second)kg (kilogram)
L (Length)T (Time)M (Mass)
× angular acceleration
× angular velocity
Bas
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ech
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al M
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alEl
ectr
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net
icTh
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alQuantity Formula Units DimensionsDefinition
Mass, energy, momentum, angular momentum, and charge are conserved, which means the total amount does not change in an isolated system.Note: Other conventions define different quantities to be fundamental.
h (quantum of action)
Physical Quantities
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