Concept	Equation or Symbol	SI Unit(s)
Distance	d	m
Mass	m	kg
Time	t	s
Displacement	Dd = d2 - d1	m
Angular Displacement	Δθ = θ2 - θ1	rad
Distance		m
Distance		m
Time	t	s
Time Interval	Dt = t2 - t1	m
Time Period	T = 1/f	s
Frequency	f = 1/T	1/s or Hz
Velocity	v = Dd/Dt	m/s
Velocity (wave)	v = lf	m/s
Final Velocity (t)	vf = vi + at	m/s
Final Velocity (d)	vf2 = vi2 + 2ad	m/s
Speed (circular)	v = 2pr/T	m/s
Angular Speed	ω = Δθ/Δt	rad/s
Angular Accel.	α = Δω/Δt	rad/s2
Acceleration	a = Dv/Dt	m/s2
Acceleration (cent.)	ac = v2/r	m/s2
Acceleration (gravity)	g = F/m	m/s2
Force	F = ma	N or kgm/s2
Weight	Fwt = mg	N or kgm/s2
Force (gravity)		N or kgm/s2
Force (Coulomb)	F = k q1q2/(d2)	N or kgm/s2
Force (magnetic)	Fm = Bqv	N or kgm/s2
Force (magnetic)	Fm = BIL	N or kgm/s2
Force (friction)	Ff = mFN	N or kgm/s2
Torque	Τ = Fl	Nm
Momentum	p = mv	kgm/s
Impulse Momentum	Dp = FDt	kgm/s
Momentum Conservation	p1 + p2= p'1 + p'2	kgm/s
Work	W = Fd	J or Nm
Power	P = W/t	J/s or W
Power	P = Fv	J/s or W
Power	P = Τω	J/s or W
Kinetic Energy	KE = (1/2)mv2	J
Potential Energy	PE = mgh	J
Pressure	p = F/A	Pa
Pressure (fluid)	p = rhg	Pa
Pascal's Principal	F1/A1 = F2/A2
Thermal Energy	Q = mCDT	J
Thermal Energy	Q = mHf	J
Thermal Energy	Q = mHv	J
Mirror & Lens	1/f = 1/di + 1/do	m
Magnification	m = hi/ho	no units
Magnification	m = -di/do	no units
Diffraction	l =xd/L = d sini	J
Charge	q	C (coulomb)
Electric Field	E = Fq/q	N/C
Capacitance	C = q/V	farads, F
Resistance (series)	Rtotal = R1 + R2 + R3 +...	Ohms
Resistance (parallel)	1/Rtotal = 1/R1 + 1/R2 + 1/R3	Ohms
Electric Current	I	A
Electric Current	I =Dq/t	A
Electric Current	I = V/R	A
Voltage	V	Volt
Electric Power	P = VI	W
Electric Power	P = I2R	W
Electric Power	P = V2/R	W
Nuclear Energy	E = mc2	J
Quantum Energy	DE = hf	J

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