Physic equations Flashcards
What links SUVT?
s = (u+v)t/2
What links UVAT?
V = u +at
What links SUAT?
S = ut +1/2at^2
What links SUVA?
V^2 = u^2 + 2as
What equations link force, mass and acceleration
F = ma
What links gravitational strength, force and mass?
g = F/m
What links weight, mass and gravitational strength?
W =mg
What links moments, force and distance?
Moment of force = Force x perp. distance from pivot
What links momentum, mass and velocity/
Momentum = mv
What links work done, force and displacment?
W = Fs
What links Ke, mass and velocity?
Ke = 1/2 mv^2
What links GPE, mass, gravitational strength and height?
GPE = mgh
What links power, energy and time?
P = E/t
What links power, work and time?
P = W/t
What links voltage, energy and charge?
V = E/Q - definition of voltage
What links resistance, voltage and current?
R = V/I - definition of resistance
What links power, voltage and current?
P = IV
What links power, current and resistance?
P = I^2R
What links power, voltage and resistance?
P = V^2/R
What links energy and work/
E = W
What links energy, current, time and voltage?
E = ItV
What links resistance, resistivity, current and area?
R = ρL/A
What links current, charge and time?
I = Q/t - definition of current
What links current, charge density, charge, drift velocity and area?
I = nAve
What links density, mass and volume?
ρ = m/v
What links force, viscosity, radius and velocity
F = 6πηrv - Stoke’s law
What links force, spring constant and extension?
F = kx - Hooke’s law
What links efficiency and energy?
Efficiency = useful E output/total E input x 100
What links efficiency and power?
Efficiency = useful Power output/total Power input x 100
What links pressure, force and area?
P = F/A
What links young modulus, stress and strain?
E = σ/ε
What links stress, force and area?
σ = F/A
What links strain, extension and length?
ε = x/L
What links elastic strain energy, force and extension?
E = 1/2Fx
What links elastic strain energy, spring constant and extension?
E = 1/2kx^2
What links wave speed, wavelength and frequency?
v = f λ
What links speed of wave of transverse wave on a string, tension and unit length?
v = √(T/μ)
What intensity, power and area?
I = P/A
What links power and focal length?
P = 1/f
What links power of multiple lens’?
PT= P1 + P2 + P3
What links object distance, image distance and focal length/
1/u + 1/v = 1/f
What links magnification, image height and object height?
magnification = Image height/Object height m =v/u
What links the distance between slits, wavelength and the angle from the normal?
nλ = dsinθ
What links refractive index of two substnaces?
n1sinθ1 = n2sinθ2
What links refractive index, speed of light and speed in substance?
n = c/v
What links critical angle and refractive index?
n = 1/sinC
What links energy, planck’s constant and frequency?
E = hf
What links planck’s constant, frequency, work function and Ke
hf = Φ + Ke_max
What links de broglie wavelength, planck’s constant and momentum
λ = h/p
What links impulse, force, time and momentum?
Impulse = FΔt = Δp
What links Ke, momentum and mass?
Ke = p^2/2m
What links velocity, angular velocity and radius?
v = ωr
What links time period and angular velocity?
ω = 2π/T
What links force, mass, velocity and radius?
F = mv^2/r = ma
What links acceleration, velocity and radius?
a = v^2/r
What links acceleration, radius and angular velocity?
a = rω^2
What links force, mass, radius and angular velocity?
F = mrω^2
What links force, charges in the field and radius?
F = k QQ/r^2 - coloumb’s law
What links Electric field strength, force and charge?
E = F/Q
What links Electric field strength, charge and radius?
E = k Q/r^2
What links electric potential, charge and radius?
V = k Q/r
What links capacitance, voltage and charge?
Q = VC
What links energy stored in a capacitor, charge and voltage?
W = 1/2QV
What links energy stored in a capacitor, capacitance and voltage?
W = 1/2CV^2
What links energy stored in a capacitor, charge and capacitance?
W = 1/2Q^2/C
What links charge on a capacitor, initial charge, time, resistance and capacitance? Graphical rearrangement?
Q = Q0 e^-t/RC - capacitor discharge. lnQ = lnQ0 - t/RC
What links current on a capacitor, initial current, time, resistance and capacitance? Graphical rearrangement?
I = I0 e^-t/RC. ln I = ln I0 - t/RC
What links voltage on a capacitor, initial voltage, time, resistance and capacitance? Graphical rearrangement?
V =V0 e^-t/RC. ln V = ln V0 - t/RC
What links force, magnetic flux density, current and length?
F = BiL sinθ
What links force, magnetic flux density, charge and velocity?
F = Bqv sinθ
What links magnetic flux, magnetic flux density and area?
Φ = BA cosθ
What equation links emf, flux linkage and time?
ℰ = -d(NΦ)/dt
What equation links energy, mass, specific heat capacity and temp change?
E = mcΔt
What equation links energy, specific latent heat and mass?
E = LΔm
What links Ke, mass, velocity
Ke = 1/2mv^2
What links root mean squared voltage, peak voltage?
Vrms = Vpeak/√2
What links root mean squared current and peak current
I rms = I peak/√2
What links power, peak current, peak voltage?
Power = Vpeak/√2 x I peak/√2 = (Vpeak I peak)/2
What links force, masses in a field, radius and gravitational constant?
F =Gmm/r^2
What links gravitational field strength, gravitational constant, mass and radius?
g = Gm/r^2
What links gravitational potential, gravitational constant, mass and radius?
Vgrav = -GM/r
What links force, spring constant and distance?
F = -kx
What links acceleration, angular velocity, displacement?
a = -ω^2x
What links displacement, amplitude, angular velocity and time?
x = Acos ωt
What links velocity, amplitude, angular velocity and time?
v = -Aω sin ωt
What links acceleration, angular velocity, amplitude and time?
a = -Aω^2 cos ωt
What links time period and frequency?
T = 1/f
What links angular velocity, frequency?
ω = 2πf
What links time period, mass and spring constant?
T = 2π √m/k
What links Time period, length and g
T = 2π √l/g
What links Amplitude, Wavelength and time?
A = A0 e^-λt
