ass
a'=acceleration
d='d'istance
Thermodynamics
"Pure Virgins Never Really Tire":
PV='nRT
The equation PV = nRT represents the ideal gas law, where P' is the pressure of the gas, V is the volume, n is the number of moles, R is the universal gas constant, and T is the temperature.
"Good Honey Tastes Sweet":
G = H - T'S'.
Gibbs free energy is a thermodynamic state function that measures the energy available for a system to do work, and is given by the formula G = H – TS, where H is enthalpy, T is temperature, and S is entropy.
Electrodynamics
Ohm's law
"Virgins Are Rare":
Volts = Amps x Resistance
Relation between Resistance and Resistivity
REPLAY
Resistance = '''ρ'''
Inductive and Capacitive circuits
Once upon a time, the symbol E was used to designate voltages. Then, every student learned the phrase
ELI the ICE man
as a reminder that:
- For an inductive circuit, the EMF is ahead of the current
- While for a capactive circuit, the current is ahead of the EMF.
And then they all lived happily ever after.
"There are zero COVS grazing in the field!"
This is a mnemonic to remember the useful fact that:
- The Current through an Open circuit is always zero
- The Voltage across a Short circuit is always ''zero''
Order of rainbow colors
ROYGBIV is commonly used to remember the order of colors in the visible light spectrum, as seen in a rainbow.
Richard of York gave battle in vain"
Additionally, the fictitious name Roy G. Biv can be used as well.
Speed of light
The phrase "We guarantee certainty, clearly referring to this light mnemonic." represents the speed of light in meters per second through the number of letters in each word: 299,792,458.
Electromagnetic spectrum
In the order of increasing frequency or decreasing wavelength of electromagnetic waves;
Road M'en Invented Very Unique Xtra Gums
Ronald M'cDonald Invented Very Unusual & eXcellent Gherkins.Remember M'y Instructions Visible Under X-Ray GlassesRaging M'artians Invaded Venus Using X-ray Guns.Rahul's Mother I's Visiting Uncle Xavier's Garden.Ryann M'ay I 'Visit YoU'r eX-'Girlfriend?Rich Men In 'Vegas U'se eXpensive GadgetsRich M'en In Vegas Use X-ray GlassesRoyal M'agicians Interested Viewing Untied X-mas GiftsRetention of M'igrant & Immigrant data Varies Under eXternal GDPRIn the order of increasing wavelength;
- Good X'ylophones Use Very Interesting Musical Rhythms.
- Godzilla-X' Using Violence In Meeting Room.
- Granddad X'avier Unfortunately Vomited In My Room.
- Grandma's X'''-Large Underwear Visible In My Room.''
Microwave frequency bands ordered by increasing wavelengths :
King Xerxes Can Seduce Lovely
Other
To remember the decay chain of 238U, commonly called the "radium series". Beginning with naturally occurring uranium-238;
A 'Bitty B'itty Ant Asked Another Ant About Bitty Bitty Ants' Bitty Bitty Aunts
A = alpha decay
B = beta decay