Physics Formulas

Error and Deviation

EA = | A - O| / A

ER = EA/ A x 100%

DA = |O - M|

DR = DA/M x 100%

Linear Motion

vavg = Dd / Dt	aavg = DV / Dt	vf = vi + at
vf^2-vi^2 = 2ad	d = vi t + 1/2 at^2	F = ma	F = ma

Trigonometric Functions

sin q = opp / hyp

cos q = adj / hyp

tan q = opp / adj

c^2 = a^2 + b^2

Gravitation

F = G (m1m2 / d^2)	W = mg
G = 6.67 x 10^-11	Radius of Earth = 6.37x 10^6 m	Mass of Earth = 5.99 X 10^24kg

Circular Motion

V = 2pr / T	ac = v^2/r	Fc = mac	Fc = mv^2/r
	vmin = (rg)^1/2	vmin = (2GM/r)^1/2

Angular Motion

wavg = Dq / Dt

a = Dw / Dt

wf = wi + at

Pendulums & Springs

T = 2p (L/g)^1/2

F = kx

Work

W = Fd

W = Fd cosq

W = DE

Linear Power

P = W / t

P = Fd / t

P = Fv

Potential Energy    &   Kinetic Energy

U = mgh	K = 1/2 mv^2
E = U + K	DU = -(DK)

Momentum    &    Impulse

P = mv

Ft = D P

Ft = mvf - mvi

Static Electricity

F = k(q1q2 / d^2)	E = F/qo	E = kq / d^2	U = k(q1q2 / d)
V = W/q	V = D U/q	V = DE / q	k=9.0 x 10^9 Nm^2/C^2

Simple Circuits

V = IR	1/Req (par) = 1/R1 + 1/R2	R eq (ser) = R1 + R2
P = IV	P = I^2R	P = V^2 / R

Waves and Sound

v = fl

T = 1 / f

Vsound = 331 + (0.6 x T) m/s

dB = 10Log (1 / 1x10^-12)

F_i = f (1 + v_o / v)

F_i = f (1 + v_s / v)