ALL THE FORMULAS Flashcards
absolute refractive index formula
n = c/v
Relative refractive index formula
nba = nb/na
absolute over an absolute
Snell’s Law
na sin θa = nb sin θb
sin i sin r
Thin Lens Equation:
1/f = 1/u + 1/v
f = focal length
Refractive index with regard to perception of depth
real depth / apparent depth
Magnification Equation
image size/object size
vuat
v = u + at
suvt
s = ½ (u + v) t
sutat
s = ut + ½ at2
svtat
s = vt - ½ at2
vuas
v2 = u2 + 2as
force formula
F =ma
force = mass x accel
Work done formula
W = f x s
force x distance
Efficiency
[(useful energy output) ÷ (energy input)] x 100%
Power
P = w / t
(work done by force) ÷ (time taken)
Or
P = Fv
(Force) x (velocity)
kinetic energy formula
½ m v^2
Gravitational potential energy formula
mgh
Hydrostatic pressure:
P = ρhg
density x height x gravity
pressure
P = F / Area
Heat capacity:
Q = C Δθ
Q = hewat energy
C = heat capacity
Δθ = change in temp
Latent heat for fusion:
Latent heat for vaporisation:
Qf = m lf
Qv = m lv
Specific heat capacity:
Q = m c Δθ
Q = hewat energy
C = heat capacity
Δθ = change in temp
m = mass
pvt relation
PV = T
