Physics Formulas and Units Flashcards
SI unit of Force and its measure
SI Unit: N (Newton)
F=MV
Where, F =Force |M = Mass of the Object | V = Velocity
SI unit of Moment and its measure
SI Unit: Nm (Newton-Meter) (TORQUE)
Moment (T) = Force (F) x Distance (d)
Where, T = Tau or the Moment or Torque | F = Force | d = Distance
SI Unit of Momentum and its measure
SI Unit: Kg.m/s (Kilogram.Meter per second)
Momentum (p) = Mass (m) x Velocity (v)
Where, p = Momentum | m = Mass of the object | v = Velocity the object is traveling
SI unit of Work and its measure
SI Unit: J (Joule)
Work (W) = Force (F) x Distance (d) x Cos (0)
Where, W = Work in Joules | F = Force over the Object | d = Distance over which the force is applied | Cos (0) = Cos Theta at an angle
SI unit of Energy and its measure
SI Unit: J (Joule)
Kinetic Energy (K.E)
KE = 1/2 mv^2
Where, KE = Kinetic Energy |m = Mass of the object | v = Velocity of the object
Potential Energy (P.E)
PE = mgh
Where, PE = Potential Energy | m = Mass of the object | g = Acceleration due to gravity | h = Height
SI unit of Power and its measure
SI Unit: W (Watt)
Power (P) = W (Work) / T (Time)
Where, P = Power | W = Work Done | T = Time
SI unit of Speed and its measure
SI Unit: m/s or Km/s (Meters per second or Kilometres per Second)
Speed (S) = Distance (d) / Time (t)
Where, S = Speed of the object | d = Distance | t = Time
SI unit of Current and its measure
SI Unit: Ampere
SI unit of Velocity and its measure
SI Unit: m/s (Meter per Second)
Velocity (v) = Displacement (d) / Time (t)
Where, v = Velocity of the object | d = Displacement | t = Time
SI unit of Displacement and its measure
SI Unit: Km or m (Kilometers or Meters)
SI unit of Distance and its measure
SI Unit: Km or m (Kilometers or Meters)
SI unit of Acceleration and its measure
SI Unit: m/s^2 (Meters per second Squared)
Acceleration (a) = v (Change in Velocity) / t (Change in Time)
SI unit of Potential Difference and its measure
SI Unit: Volts
SI unit of Capacitance and its measure
SI Unit: Farrad
Give the 5 formulas for Equations of Motion
- v = u + at
- s = ut + 1/2 at^2 (Half AT Squared)
- v^2= u^2 + 2as
- s = u + a/2 (2a-1)
- s = (u+a)/2 x t
SI unit of Resistance
SI Unit: Ohms
SI unit of Density and its measure
SI Unit: Kg/m^3 (Kilogram per meter cube)
p = m / v
Where, p = Density | m = Mass | v = Velocity
SI unit of Magnitism
SI Unit of magnetic Field: Tesla
SI Unit of Magnetic Flux: Weber
Give the 3 formulas for Free Fall
- v = u + at
- h = ut + 1/2 at^2 (Half AT Squared)
- v^2= u^2 + 2as
The equation to find the nth second in motion.
h = u + a/2 (2n-1)
Where, h = height of the object | a = Acceleration due to gravity | n - the Nth second
1 Joule equals?
1 Nm of torque or moment
Volume is best given by ___________
a) Product of mass and density
b) Ratio of mass to density
c) Addition of mass and density
d) Subtraction of mass and density
b) Ratio of mass to density
