Question

What is a derived quantity? Explain giving two examples.​

Answer 1

Answer:

Derived quantities are quantities that are calculated from two or more measurements. Derived quantities cannot be measured directly. They can only be computed. Many derived quantities are calculated in physical science. Three examples are area, volume, and density.

Answer 2

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A derived quantity is a physical quantity whose measurement or determination involves the direct measurement of one or more fundamental quantities. A derived quantity is measured and expressed in terms of one or more basic quantities using the respective defining equation

Examples : Area, speed. Area of a rectangle, for example, is equal to length x breadth. As breadth is also a length measure, determination of area depends upon two length measures. Speed is equal to the distance covered divided by the time taken to cover that distance. Thus, determination of speed depends upon measurement of distance, essentially, length, and time.

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