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In physics, mass is defined as a quantity without dimensions that represents the amount of matter in an object or particle. It can also be defined as a property of a physical body which determines the strength of its mut... More »

Mass is the amount of matter in an object, and it is different from weight. Mass is also defined as the measure of an object's inertia. More »

A hypodense liver mass can be anything from a lesion to a benign cyst in the liver that appears on a non-contrast CT scan, says Radiopaedia. For a full diagnosis, doctors must order intravenous contrast CT scan to differ... More »

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As of 2014, leptons and quarks constitute the smallest particles of matter, based on contemporary evidence in the field of particle physics. Traditionally, the atom was considered as the indivisible form of matter. More »

A particle within physics is defined as an extremely small unit of matter. Despite the small size, a particle can still be assigned properties including volume and density. More »

Mass is the amount of matter in an object, and it is different from weight. Mass is also defined as the measure of an object's inertia. More »

A measure of the quantity of matter is called mass. The International System (SI), commonly known as the metric system, uses the kilogram as the base unit of mass, while the British imperial unit for the mass is the poun... More »