Physics 0.0 / 5 ? ScienceFormulaeIGCSEEdexcel Created by: SomcweymesCreated on: 21-03-14 22:21 F=m x a Force=mass x acceleration 1 of 18 v=(2 x pi x r) / T Orbital Speed= (2 x pi x orbital speed) / time period 2 of 18 v= f x lamda wave speed=frequency x wavelength 3 of 18 f= 1 / T Frequency= 1 / time period 4 of 18 P=I x V Power= current x voltage 5 of 18 E= I x V x t Energy transferred= current x voltage x time 6 of 18 V= I x R Voltage= current x resistance 7 of 18 Q= I x t Charge= current x time 8 of 18 n= sin(i) / sin(r) Refractive index= sin(angle of incidence) / sin(angle of refraction) 9 of 18 sin(c)= 1 / n Sin(critical angle)=1 / refractive index 10 of 18 KE= 1/2 x m x v2 Kinetic Energy= 1/2 x mass x velocity squared 11 of 18 W= F x d Watts (energy)= Force x distance moved 12 of 18 P= W / t Power= Work done / time taken 13 of 18 efficiency= useful energy output / total energy input efficiency= useful energy output / total energy input 14 of 18 p= m / V Pressure= mass / volume 15 of 18 p= F / A Pressure= Force / Area 16 of 18 p= h x p x g Pressure difference= height x pressure x gravity 17 of 18 p1v1=p2v2 Pressure 1 x volume 1= pressure 2 x volume 2 18 of 18
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