Selected Physics Formulas

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 (R,θ)  →  (X,Y)
X Component of R
Y Component of R
Combining Components
Sum of X
Sum of Y
 (X,Y)  →  (R,θ)
Magnitude of R
Direction of R








































Velocity
Average
Instantaneous
Acceleration
Average
Instantaneous
One Direction (Linear)
Given (vf vi a t): no d
Given (d vi a t): no vf
Given (d vi vf a): no t
Given (d vi vf t): no a
Two Directions (Trajectory)
X Component of Velocity
Y Component of Velocity
Magnitude
Direction
Displacement
Displacement in X Direction
Displacement in Y Direction
Magnitude
Direction
Time of Flight
Solve quadratic for two values for 't'
t = (− , −): no solution
t = (0 , +): use pos value
t = (+ , +): use larger pos value
↑   - or -   ↓
Maximum Height
Y Displacement at
Half of Time of Flight
Final Velocity
X Component of Velocity
Y Component of Velocity
Magnitude
Direction








































Forces
Force
Friction
Gravitational Force
Force (spring)
Torque
Momentum
Conservation of Momentum
Elastic Collision (2 → 2)

Splitting (2 → 1)

Combining (1 → 2)
Impulse
Energy, Work & Power
Kinetic Energy
Potential Energy
Potential Energy (spring)
Gravitational Potential Energy
Work
Power
Circular and Periodic Motion
Centripetal Acceleration
Period
Rotational Inertia
Radius
Speed (circular motion)
Angular Momentum
Angle (circular motion)
Angular Velocity









































Force
Electric Field
Electric Flux
Electric Potential
Capacitance
Capacitors

in Parallel

and Series
Parallel
Series
Potential Energy
Current
Potential Energy
Resistance
Resistors

in Parallel

and Series
Parallel
Series
Electric Field
Ohm's Law
Power









































Magnetic Force
Magnetic Field
Magnetic Flux
EMF
Potential Energy









































Density
Pressure (vs depth)
Buoyancy
Equation of Continuity
Bernoulli equation
Boyle's Law of Gases
(Constant Temperature)
Charles' Law of Gases
(Constant Pressure)
Gay-Lussac's Law of Gases
(Constant Volume)
Combined Gas Law
Ideal Gas Law
Van Der Waal's Equation
Density or Molar Mass of Gas
Dalton's Law of Partial Pressures
Graham's Law of Effusion'
Henry's Law
Pressure
Root Mean Square Velocity









































Specific Heat
Heat of Fusion
Heat of Vaporization
First Law of Thermodynamics
Work Done in Gas Expand/Compress
Definition of Enthalpy
Clasius-Clapeyron Equation
Thermal Expansion
Heat Transfer
Average Molecular KE
Work
Internal Energy
Efficiency









































Energy of Photon
Energy of an e- in the nth state
in a Hydrogen atom
Energy emitted as the e- transitions
from the nilevel to the nf level
Energy
Maximum Kinetic Energy
de Broglie Wavelength
Bragg Equation
Binding Energy









































Wavelength Frequency Relationship
Speed
Index of Refraction
Snell's Law'
Critical Angle
Interference
(Constructive)

(Destructive)
Double Slit Interference









































Magnification
Focal Length
Distance
Lensmaker Formula
(Thick Lens)

(Thin Lens)