The International System of Units (SI)

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The International System of Units (SI): Overview

This topic covers concepts, such as, Base Physical Quantities and Their Symbols, Derived Physical Quantities and Their Symbols, Prefixes Used in SI System & The International System of Units etc.

Important Questions on The International System of Units (SI)

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What are derived physical quantities? Give any two examples of derived physical quantities.

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How do you calculate derived units?

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The basic fundamental units are _____ in number.

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Why do scientists use standard units to measure things?

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1 kilowatt hour (kWh) is equal to

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g cm s-2 stands for the unit of

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A speed of 14 metres per second is the same as:

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The concorde is the fastest airlines used for commercial service.It can cruise at 1450 mile per hour. What is it in m/s ?