Understanding Mass in Physics

Mass is part and parcel of any physical body. The resistance of movement by an object's change in state of motion with the application of a net force is the measure of mass. The strength of an objects gravitational attraction towards other bodies is also determined by mass. The unit for measurement of mass is kilogram. Check out  http://www.acalculator.com/density-mass-volume-calculator.html to get started.


The mass of an object is normally found by weighing it on a spring scale instead of directly comparing it with masses that are known. It should however be noted that mass is not similar to weight. Because earth has a lower gravitational force, an object on earth would weigh less on the moon but would still be of the same mass. Reason being, mass is a property that in conjunction with gravity determines the strength of weight. Since weight is a force.

Mass can be defined as the amount of matter in an object according to Newtonian physics. Special relativity however suggests that energy becomes an important source of mass at very high speeds. Therefore, any non-moving body that contains mass has an equal amount of energy, and all types of energy don't agree to acceleration by a force and have gravitational attraction. Matter cannot be measured with precision as it is not clearly defined in science. Visit  http://www.acalculator.com/density-mass-volume-calculator.html for more info.

There are a number of specific phenomena that could be used to find out mass. Some theorists have however, contended that some of these phenomena are sovereign from one another. Experiments that have been conducted lately have shown no difference in the findings, whichever way mass is measured. An object's resistance to acceleration by a force is known as inertial mass. The gravitational force placed on an object is called active gravitational force and the gravitational force put on an object in a common gravitational field is passive gravitational mass. The acceleration of an object is determined by its mass with the application of force.

Quantitatively, inertia is described by mass. The extent to which a body generates is determined by its mass. Research has shown that gravitational mass and inertial mass are one and the same. The existence of mass can also be proved by the curvature of space and time. The difference between an object's wave number and quantum frequency is another way that mass proves its existence. Mass is one of the labels in the Poincare group that's cannot be reduced in relativistic quantum mechanics.