AICE Physics Formuals

we're so cooked

s = d/t

speed (s), distance (d), time (t)

v = Δx/t

velocity (v), displacement (Δx), time (t)

a = Δv/t

acceleration (a), change in velocity (Δv), time (t)

vf = vo + at

final velocity (vf), initial velocity (vo), acceleration (a), time (t)

vf 2 = vo 2 + 2aΔx

final velocity (vf), initial velocity (vo), acceleration (a), displacement (Δx)

Δx = vot + ½ at2

displacement (Δx), initial velocity (vo), time (t), acceleration (a)

ΣF = ma

Sum of forces in one dimension (ΣF), mass (m), acceleration (a)

w = mg

weight (w), mass (m), gravity (g)

Ff = µFN

Friction force (Ff), coefficient of friction (µ), normal force (FN)

FN = mg ± sinƟ

Normal force (FN), mass (m), gravity (g), angle (Ɵ)

wx = sinθmg

component of weight parallel to incline (wx), angle of incline (θ), mass (m), gravity (g)

wy = FN = cosθmg

component of weight perpendicular to incline (wy or FN), angle of incline (θ), mass (m), gravity (g)

∑Fx = 0

sum of horizontal forces (∑Fx)

∑Fy = 0

sum of vertical forces (∑Fy)

∑τ = 0

sum of torques (∑τ)

τ = Fdsinθ

torque (τ), force (F), perpendicular distance from axis (d), angle (θ)

W = Fdcosθ

work (W), force (F), distance (d), angle (θ)

KE = ½ mv2

kinetic energy (KE), mass (m), velocity (v)

PEg = mgh

potential energy (PEg or U), mass (m), gravity (g), height (h)

PEs = ½ kx2

spring potential energy (PEs), spring constant (k), position from equilibrium (x)

WNC = FNCd

Work (WNC), non-conservative force (FNC), distance (d)

EMECH = PEg + PEs + KE

Total mechanical energy (EMECH), potential energy (PEg), spring potential energy (PEs), kinetic energy (KE)

ETi = ETf

initial total energy (ETi), final total energy (ETf)

ET = PEg + PEs + KE + WNC

total energy (ET), potential energy (PEg), spring potential energy (PEs), kinetic energy (KE), work done by non-conservative forces (WNC)

Fs = -kx

spring force (Fs), spring constant (k), position from equilibrium (x)

E=Stress/Strain

Young Modulus (E), Stress, Strain

Stress=F/a

Stress, Force (F), Area (a)

Strain=ΔL/L

Strain, Change in Length (ΔL), Original Length (L)

P = ΔET / t

power (P), total change in energy (ΔET), time (t)

P = Fv

power (P), force (F), velocity (v)

P = W/t = Fd/t

power (P), work (W), time (t), force (F), distance (d)

Wnet = ΔKE

work (Wnet), change in kinetic energy (ΔKE)

p = mv

momentum (p), mass (m), velocity (v)

ΣF = Δp /t

force (ΣF), change in momentum (Δp), time (t)

J = Ft = Δp

impulse (J), force (F), time (t), change in momentum (Δp)

m1v1 +m2v2 = m1v1’ + m2v2’

mass 1 (m1), velocity 1 (v1), mass 2 (m2), velocity 2 (v2), velocity 1 after collision (v1’), velocity 2 after collision (v2’)

v1 – v2 = v2’ – v1’

velocity 1 before collision (v1), velocity 2 before collision (v2), velocity 2 after collision (v2’), velocity 1 after collision (v1’)

m1v1 +m2v2 = (m1 + m2)vf

mass 1 (m1), velocity 1 (v1), mass 2 (m2), velocity 2 (v2), combined mass (m1 + m2), final velocity (vf)

ρ = m / V

density (ρ), mass (m), volume (V)

%sub = ρobject / ρfluid

percent submerged (%sub), density object (ρobject), density of fluid (ρfluid)

P = F / A

pressure (P), force (F), area (A)

PG = ρfluidgh

gauge pressure (PG), density of fluid (ρfluid), gravity (g), depth (h)

PTotal = PATM + PG

Total Pressure (PTotal), Atmospheric Pressure (PATM), Gauge Pressure (PG)

FB = ρfluidVg

Buoyant force/Upthrust (FB), density of fluid (ρfluid), volume of fluid displaced (V)

ρfVo = mmax

density of fluid (ρf), volume of object (Vo), maximum mass (mmax)

v = fλ OR λ = v/f

velocity (v), frequency (f), wavelength (λ)

c = fλ

speed of light in vacuum (c), frequency (f), wavelength (λ)

d sinӨ = mλ

slit separation (d), angle of diffraction (Ө), order of spot (m), wavelength (λ)

d (ymax/L) ≈ mλ

distance between slits (d), distance between spots (ymax), distance from slits to screen (L), order of spot (m), wavelength (λ)

I = Io cos2Ө

intensity (I), original intensity (Io), angle between polarizing filters (Ө)

I α Amplitude2

Intensity (I), Amplitude

I α Power

Intensity (I), Power

I = ∆Q / t

current (I), charge (∆Q), time (t)

I = ΔV / R

current (I), voltage (ΔV), resistance (R)

R = ρ (L / A)

resistance (R), resistivity constant (ρ), length of wire (L), area of wire (A)

P = IΔV

power (P), current (I), voltage (ΔV)

P = I2R

power (P), current (I), resistance (R)

P = V2 / R

power (P), voltage (V), resistance (R)

V=IR1+IR2

Voltage (V), Current (I), Resistor 1 (R1), Resistor 2 (R2)

I=Anvq

Current (I), Area (A), number of electrons (n), drift speed (v), Charge (q)