SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A value
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A unit
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A value and a unit
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A unit and direction
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Detailed explanation-1: -A physical quantity can be expressed as a value, which is the algebraic multiplication of a numerical value and a unit. Examples of physical quantities are mass, amount of substance, length, time, temperature, electric current, light intensity, force, velocity, density, and many others.
Detailed explanation-2: -All physical quantities in the International System of Units (SI) are expressed in terms of combinations of seven fundamental physical units, which are units for: length, mass, time, electric current, temperature, amount of a substance, and luminous intensity.
Detailed explanation-3: -Physical quantities are those quantities which can be quantified by measurement and are also known as base quantities. e.g. length, weight, time etc.