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Is ACTION Physics Most Fundamental Property?

Definition of Fundamental Properties

To explain the universe, there are main four fundamental properties are available. With the help of these fundamental properties we can know measure surroundings.

The four fundamental properties are

▪ Length

▪ Mass

▪ Time

▪ Charge


Length can be defined as the travelled distance by the light in a certain time. The unit of the measured length is meter. The meter is the length of the path travelled by the light in vacuum during a time interval of  of a second.


The amount of substance containing in an object, is known as mass of that object. Everywhere the mass of the object is constant. Like, if one object has a mass of 1 kg on Earth’s surface, the mass will be same on sun’s surface, Moon surface. Mass is a scalar quantity.

The expression for mass of an object is W=mg

Where, W is the weight of the object, M is the mass of the object, and G is the gravitational acceleration.

Kilogram (Kg) is used to measure of mass, i.e. kilogram is equal to the mass of the international prototype of the kilogram


Time is the  of mean solar day.

Second (s) is the measurement of time, i.e. the second is duration of 192631770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom.


Charge can be defined as the amount of transfer of 6.24×1018 number of electrons. The unit of charge is coulomb. There are two types of electric charges, i.e. positive charge and negative charge. Charge is a fundamental property of matter. Because of charge matter can experience a force when the matter is placed in a electromagnetic field.

It’s about time we discussed an obscure concept in physics that may be more fundamental than energy and entropy and perhaps time itself. That’s right – the time has come for Action.

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