PHYSICAL QUANTITIES AND SI UNIT
PHYSICAL QUANTITIES SI UNIT
Velocity =displace /time m/s
Acceleration =velocity/time m/s^2
Force = mass* acceleration kg ----m/s^2 = newton or N
Work = force *displacement kg----m^2/S^2 = joule
Energy j
Momentum =mass * velocity kg--m/s
Impulse =force *time N--s
Angle =arc/radius radian
Torque = force * perpendicular distance N---m
Power =work/time j/s or watt
Angular velocity = angle /time rad/sec
Moment of inertia = mass * (distance)^2 kg--m^2
Surface tension = force /length N/m^2
Stress = force /area N/m^2
Pressure = force /area N/m^2
Modulus of elasticity = stress / strain N/m^2
Frequency = 1/ time period pre sec or hertz (Hz)
Angular momentum kg-- m^2/s
Coefficient of velocity N --s/m^2
Coefficient of viscosity N--s/m^2
Specific heat (s) j/kg--k
Coefficient of thermal conductivity (k) watt/m-k
Gas constant(R) J/mol--k
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