There are a lot of things that we can benefit by studying physics, it enables us to understand logically as well as mathematically all natural phenomena. That’s why we introduced the Physical quantity and unit. All the laws of physics are generally expressed in terms of Physical Quantities. As an example, if you go to school or college from your home by walk, you need to know your speed and time. Using different units and measurements can give us better accuracy for what is being measured, we can understand magnitude more, and many measurements will get easier for us to calculate and to use. Whenever we go for buying anything, enquire the selling unit of measurement of that article prior to buying and then know the price from the seller. Every time we place an order, check the method of measurement carefully. If we notice anything wrong, we have every right to check the balance, weight pieces, meter sticks or measuring mugs and any of the accessories, which are used by the seller. It is now clear to us that proper measurement of articles and the application of correct units of measurement are very important in our daily life. Measurements play an important role in daily life because they are useful to do basic tasks, such as take a child's temperature with a thermometer, make time estimations, measure out medicine and find weights, areas and volumes of different materials or substances. For examples, people use measurements in simple home task like cooking where one may need to use a weighing scale or read the temperature of an oven when baking foods. Nearly all professions use measurements in one form or another. Nurses have to measure out doses of medicines, record blood pressure readings and take pulses. Similarly, engineers and architects have to read blueprints with precise dimensions and markings. Other professionals that use customary measurements are surveyors, actuaries, cartographers and accountants. We use measurement and physics from the day that we were born and until the day we lose our breath.
