basic physical quantities involved in measurement

Introduction - The goal of physics is to provide an understanding of nature. The science of physics was developed to explain our physical environment. Great Physicists like Galileo, Newton, and Einstein etc. framed laws to explain the various phenomena in nature. These..

Suppose X = a - b Let D a and D b be absolute errors in measurements of quantities a and b, values of a and b and D X be maximum error in X. Maximum absolute error in X = Maximum absolute error in a + Maximum absolute error in b From equations (1) and (2) it is evident t..

Let D a and D b be absolute errors in measurement of quantities a and b and D X be maximum possible error in X. ..

Measurements - Everything that we use in our daily life is ultimately governed by principles of physics. All gadgets we use everyday at home, bicycles and cars, all different types of machinery and instruments, work on principles of physics. Hence to understand even th..

Most experiments in physics require the observations made to be quantitative rather than qualitative. If observations are only descriptive or qualitative, they are likely to be imprecise and could cause disagreements between experimenters. For example, scientists cannot merely say that a..

In 1960, the Eleventh General Conference of Weights and Measures recommended an International System of Units (abbreviated as SI) based on the metric system of measurement. When the recommendation was accepted in 1968, it marked the first time in world history that a single syst..

X is the sum of 2 observed quantities a and b. X = a + b Maximum absolute error in X = Maximum absolute error in a + Maximum absolute error i..

Basic physical quantity Unit Symbol Length metre m Mass kilogram kg Time Second s Temperature kelvin K Electric current ampere A Luminous intensity candela cd Quantity of matter mole mol Supplementary quanti..

Temperature is a physical quantity and hence, measurable. In fact in SI system, temperature is a fundamental physical quantity..

Temperature is a physical quantity and hence, measurable. In fact in SI system, temperature is a fundamental physical quantity. By our bodily sensation, we can say which object is hot and which is cold. But such a decision about temperature is not r..