Equations Flashcards
Change in velocity acceleration and time
Vat
Velocity = acceleration x time
Weight mass gravitational field strength
W = mg
Force mass acceleration
F = Ma
Momentum mass velocity
Momentum = mass x velocity
Force acting, change in moment and time taken for change
Force acting = change in momentum / time taken for change
Force moment perpendicular distance
Moment = force x perpendicular distance
Electrical power, current and voltage
Electrical power = current x voltage
PIV
Energy transferred current voltage and time
Energy transferred = current x voltage x time
Voltage current resistance
Voltage = current and resistance
VIR
Charge current and time
Charge = current x time
Qit
Frequency time period
Frequency = 1/period
Speed frequency wavelength
Speed = frequency x wavelength
Refractive index, speed of light in vacuum, speed of light in that material
Refractive index (n) = speed of light in vacuum / speed of light in that material
N, sin i, sin r
N = sin i / sin r
Sin c, n, 1
Sin c = 1/n
Workdone, force, distance
Workdone = force x distance
Work done power time taken
Work done = power x time taken
KE gained, gpe lost
Ke gained = gpe lost
Mass density volume
Mass = density x volume
Force pressure area
Pressure = force / area
Pressure difference
Height density g
Pressure and volume
P1v1=p2v2
Give the equation for distance speed and time
Speed = distance / time
