Physics formula

Moment of inertia, also called mass moment of inertia or the angular mass or MOI, Moment of inertia is the rotational analogue to mass, is a property of physics that indicates the relative difference in how easy or difficult it will be to set any object in motion about a defined axis of rotation, The moment of inertia plays much the same role in rotational dynamics as mass does in basic dynamics, determining the relationship between angular momentum and angular velocity, torque and angular acceleration.

picture below show object type and moment of inertia formula list


a brief picture with 3 D illustration see picture below, picture below is moment inertia for circular based types


rectangle type of moment inertia formula, you can see at picture below, click the picture to enlarge


remember that those formula list is for homogeneous object.

In classical mechanics the coordinates and of a point in the two frames are related by the standard Galileo transformation.
The Galilean transformation is used to transform between two reference frames of coordinates which differ only by constant relative motion within the constructs of Newtonian physics.



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Below is picture of a chart illustrating the Greek letters, their sounds, and their names in English. Greek alphabet is commonly use as symbol in physical , engineering, mathematic, chemistry and other science.



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in engineering, educational and science International System of Units well known as SI unit ,abbreviated SI from the French Le Système international d'unités,
By convention physical quantities are organized in a system of dimensions.
Each of the seven base quantities used in the SI is regarded as having its own dimension, which is symbolically represented by a single sans serif roman capital letter. look at picture below, picture below shown SI base unit with the dimension


Dimensionless derived units
The following SI units are actually dimensionless ratios, formed by dividing two identical SI units.



Derived units with special names
Base units can be put together to derive units of measurement for other quantities, picture follow shown derived unit with special names in SI



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physical constant is a physical quantity that is generally believed to be both universal in nature and constant in time.
table at picture below shown a complete of universal physical constant,begin with phi constant then electrical constant, atom & particle constant, chemistry constant, nuclear constant and astronomical constant.


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