Notes

                                                                         Measurement is the comparison between unknown quantities with known standard quantities. Some of the importance of measurement are: Measurement is important for selling and buying goods in markets. It is essential for doing chemical experiments. It is necessary for doing new inventions. It is important for making laws and rules. Physical quantities are those quantities which can be measured and are countable. For example: height, weight, length, etc. Non-physical quantities are those quantities which cannot be measured and are not countable. For example: love, emotion, anger, ...