Equations Flashcards
Force, mass and acceleration
F = ma
Weight, mass and gravitational field strength (g)
W = mg
Pressure, force and area
p = F / A
Pressure of a gas and temperature
P1 / T1 = P2 / T2
Pressure of a gas and volume
P1V1 = P2V2
Density, mass and volume
ρ = m / V
Energy transferred, current, voltage and time
E = IVt
Energy transferred, mass, specific heat capacity and change in temperature
Q = mcΔT
Power, current and voltage
P = IV
Charge, current and time
Q = It
Pressure difference, density, gravitational field strength (g) and height
p = ρgh
Voltage, current and resistance
V = IR
Wave speed, wavelength and frequency
v = fλ
Orbital speed, orbital circumference and time period
v = 2πr / T
Frequency and time period
f = 1 / T
Refractive index, angle of incidence and angle of refraction
n = sin i / sin r
Critical angle and refractive index
sin C = 1 / n
Average speed, distance and time
s = d / t
Acceleration, final velocity, initial velocity and time
a = (v-u) / t
Final velocity, initial velocity, acceleration and distance
v^2 = u^2 + 2as
Momentum, mass and velocity
p = mv
Impulse, force and time
Δp = Ft
Moment, force and perpendicular distance from the pivot
Moment = Fd
Work done, force and distance moved
W = Fd
Work done and energy transferred
W = E
GPE, mass, gravitational field strength and height
GPE = mgh
KE, mass and velocity
KE = 1/2 m v^2
Stopping distance, braking distance and thinking distance
ds = db + dt
