Formulas Flashcards
memorise formulas
What is the formula for Moments?
Moments = F x d (Moments=Newton meters/Nm d=perpendicular distance/meters F=force/Newtons )
What is the formula for Velocity?
v = d/t (v=velocity/m/s d=displacement/meters t=time/seconds)
What is the formula for KPE (kinetic energy)
Ek = 1/2mv^2
What is the formula for GPE (gravity)
Egpe = mgh (Egpe=gravity/N/kj g=gravity h=height/meters m=mass/kg)
What is the formula for Power?
P = E/t (P=power/W,watts E=energy/C,coulomb t=time/seconds)
What is the formula of Work Done?
Work done = F x d (F=force/Newtons d=distance/ meters)
What is the formula for Weight?
W = mg (W/weight/Newtons m=mass/kg g=gravity=10N)
What is the 2 formulas for Energy?
E = V x I x t (V=voltage/W,watts I=current/A,ampere t=time/seconds)
E = P x t (P=power/W,watts t=time/seconds,s
What is the formula for Voltage?
V = R x I (V=voltage/W,watts R=resistance/ohms I=current/A,ampere)
What is the formula for Frequency?
f = 1/T (T=period)
What is the formula for Period?
T = t(avg)/c (t(avg)= average time for each oscillation c=number of oscillations)
What is the formula for Resultant Force?
Fr = m x a (Fr=resultant force/J,Joules m=mass/kg a=acceleration/ms^-2)
What is the formula to calculate Speed of Wave?
v = f x λ (f=frequency λ=wavelength)
What is the formula for Pressure?
P = F x A (P=pressure/pascals F=force/newtons,N A=area/m^2)
What is the formula for Density?
p = m/v (p=density/rho looks like a p but with a tail m=mass/kg v=volume/m^3)
What is the formula for Liquid Pressure?
P = h x p x g (P=pressure/pascals h=height/meters/m p=rho/density of liquid g=gravity)