need phy notes and formulas

[IGCSE28]

please i need physics notes nd formulass plllllllZZ

 

[expectr0patr0num]

density=mass/volume
speed=distance/time
acceleration=change in velocity/time taken
resultant force=mass*acceleration
weight=mass*g
moment= force*perpendicular distance from pivot
spring constant=load/extension
pressure=force/area
pressure in liquid= density*g*depth
kelvin temp= temp in celsius + 273
for a fixed mass of gas at constant temperature: pressure1*volume1=pressure2*volume2
for a fixed mass of gas at constant volume: pressure1/temp1=pressure2/temp2
work=force*distance
gravitational potential energy=mass*height*g
kinetic energy=0.5*m*v^2
specific heat capacity= energy/(mass*temp change)
specific latent heat = energy/mass
power = work done/time
efficiency = energy output/energy input
wave speed = frequency*wavelength
frequency = 1/period
refractive index = speed of light in vacuum/speed of light in medium or (sin*i)/(sin*r)
(sin*critical angle) = 1/refractive index
charge = current*time
resistance=PD/current
total resistance in series: R=R1+R2+R3 (depending on the number of resistors in the series)
total resistance in a parallel circuit: (R1*R2)/(R1+R2)
power=PD*current
energy=PD*current*time
in transformers: output voltage/input voltage = output turns/input turns
in 100% efficient transformers: V1*I1=V2*I2 whereby I is the current!

hope this helps!!

 

[MarkBobbyChandy]

I found this file somewhere on xtremepapers. All regards goes to the author.