IGCSE Edexcel- Physics Equations Flashcards
average speed
distance moved/time taken
acceleration, a
change in velocity/time taken, (v-u)/t
(final speed)^2, V^2
(initial speed)^2 + (2 x acceleration x distance moved), u^2+(2as)
force, F
mass x acceleration, ma
weight, W
mass x gravitational field strength, mg
power, P
current x voltage, IV
energy transferred, E
current x voltage x time, IVt
Voltage, V
current x resistance, IR
charge, Q
current x time, It
energy transferred, E
charge x voltage, QV
wave speed, v
frequency x wavelength, fλ
frequency, f
1/time period, 1/T
refractive index, n
sin(angle of incidence)/sin(angle of refraction), sin i/sin r
sin(critical angle), sin c
1/refractive index, 1/n
efficiency
(useful energy output/total energy output) x 100
work done, W
force x distance moved, Fd
gravitational potential energy, GPE
mass x gravitational field strength x height, mgh
kinetic energy, KE
1/2 x mass x speed^2, 1/2mv^2
power, P
work done/time taken, W/t
density, ρ
mass/volume, m/V
pressure, p
force/area, F/A
pressure difference, p
height x density x gravitational field strength, hρg
constant
pressure/temperature, p1/T1=p2/T2
pressure x volume,
p1V1=p2V2
orbital speed, v
(2 x π x orbital radius)/time period, (2πr)/T
