physical science class 10 short answer questions: what is a unit? explain the importance of unit in the measurements, what do you mean by the fundamental and the derived unit ?
unit is the quantity of a constant magnitude which is used to measure the magnitudes of other quantities of the same nature
unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.
The units which can neither be derived from other units nor they can be further resolved into simpler units are called fundamental units. Examples: Mass, length etc. Those units which can be expressed in terms of the fundamental units are called derived units.
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unit is the quantity of a constant magnitude which is used to measure the magnitudes of other quantities of the same nature
unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.
The units which can neither be derived from other units nor they can be further resolved into simpler units are called fundamental units. Examples: Mass, length etc. Those units which can be expressed in terms of the fundamental units are called derived units.
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