Science > Physics > Units and Measurements > Form of Physical Equation In this article, we shall study the use of principle of homogeneity to derive the form of the physical equation. Example – 01: The hydrostatic pressure P of a liquid column depends upon density (d) and height of liquid (h) and acceleration due […]
Science > Physics > Units and Measurements > More Problems on Dimensional Analysis Example – 01: Check the correctness of physical equation, s = ut +1/2at2, Where u is the initial velocity, v is the final velocity, a is the acceleration, s is the displacement and t is the time in which the change occurs. […]
Science > Physics > Units and Measurements > Applications of Dimensional Analysis In this article, we shall study the applications of dimensional analysis. Applications of Dimensional Analysis: To check the correctness of physical equation: To Find Dimensions of New Physical Quantity: To derive the form of a physical equation: To derive the relation between different […]
Science > Physics > Units and Measurements > Dimensions of Physical Quantities In this article, we shall study the concept of dimensions of physical quantities and to find dimensions of given physical quantity. Dimensions of Physical Quantity: The power to which fundamental units are raised in order to obtain the unit of a physical quantity […]
Science > Physics > Units and Measurement > Measurement of Length, Area, and Volume > Use of Metre Scale Physics is a science of measurement. In science and engineering, we perform experiments. During experiments, we have to take readings. Thus all these experiments require some measurements to be made. During the production of mechanical products, […]
Science > Physics > Introduction to Measurements > Other Important Units The quantity to be measured may be very large so that the SI unit of that quantity may be smaller to use or the quantity to be measured is so small that the SI unit of that quantity is very large to use. Hence […]
Science > Physics > Introduction to Measurements > System of Units There are as many units as there are independent quantities. We consider length, mass, and time three quantities which are independent of each other. Hence they have three separate units for their measurements. Hence it is required to define systems of units. LIST OF […]
Science > Physics > Introduction to Measurements > Measurement and its Need Physics is a science of measurement. In this article, we shall study the meaning of the term ‘measurement’ and its importance in the field of science and engineering. “When you can measure what you are speaking about and express it in numbers, you […]