You have probably used units without thinking about them. For example, when usin

Question

You have probably used units without thinking about them. For example, when using a ruler, you may have used centimetres or millimetres for the unit of length. A unit is a quantity or an amount used as a standard of measurement. List some other units have you used: Symbols are used to represent units. For example the letter m represents the metre. Write down the symbols for the units that you listed above: The unit of length, the metre, is not built from other units. Units that are not built from other units are called base units. Some units are built up from other units. For example, the unit of area is built from the unit of length. Area = length times length Square metre = metre times metre

Explanation / Answer

1.

some other unit we have used are as follows

kilogram : for mass

Newton : for force

Joules : for energy

second : time

2.

kilogram : kg

Newton :N

Joules : J

second : s

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