Units & Measurements – Hub of related Posts

Here goes the list of our posts on Units & Measurements and related topics and subtopics.

SI Conversion | Conversion of popular units

In this post, we listed data required for the conversion of units of different physical quantities. These may be used while solving numerical problems in Physics (for educational purposes). Kilometer ...
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Dimensions & Dimensional formulas of physical quantities

In this post, we are going to list the formulas, dimensions, and dimensional formulas of important physical quantities in a tabular format. In these formulas, M stands for mass, L ...
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Converting L atm to Joule | Litre Atm to Joule

Here in this post, we will convert L atm to Joule. L atm is also known as Litre Atmosphere. L atm to Joule L atm is the product of 2 ...
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Measuring the resistance of a component – different ways

In this post, we are going to discuss different ways of measuring the resistance of a component. Resistance is defined as R = V/I. This obviously gives ways of measuring ...
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How to find resistance using Resistor Colour Codes

Small resistors use coloured or painted bands which represent their resistive value and tolerance. These coloured painted bands produce a system of identification generally known as a Resistors Colour Code ...
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Dimensional Analysis & its uses with examples

This topic covers Dimensional Analysis & its uses. The term dimension is used to refer to the physical nature of a quantity and the type of unit used to specify ...
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Measuring frequency & voltage of an Alternating Current (AC) with CRO

An oscilloscope can be used to measure the frequency and voltage of an alternating current. There are two types of oscilloscopes. The traditional cathode-ray oscilloscope (CRO) uses an electron beam ...
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Different types of Pressure gauges & how they operate

Pressure gauges measure the pressure exerted by a fluid, in other words by a liquid or a gas. We will cover 3 types of pressure gauges here, and these are ...
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The oscilloscope & its signal attribute, AC and DC graph

An oscilloscope is an instrument used to investigate electrical signals. The screen of the oscilloscope displays a trace of the electrical signal and in almost all cases this is a ...
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Estimation of physical quantities with Significant Figures and Order of Magnitude

Estimation of physical quantities brings in the concepts of Significant Figures and Order of Magnitude. It is always a good idea to be able to estimate the size of a ...
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Random and systematic errors in physical measurements or physics experiments | Precision and accuracy & Uncertainty

Here we will briefly define and explain the common terms related to Random errors and systematic errors in physical measurements (also in Physics experiments). We will talk about terms like ...
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[pdf notes] Unit Systems in Physics – grade 10 Notes download | class 11 physics notes on Unit System

This Unit Systems in Physics Notes [PDF] is primarily for the grade 10 (10th grade) physics syllabus of different international boards. This also covers the class 10 physics syllabus on ...
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Determination of Density of a solid and a liquid

Determination of Density of a Solid by Using a Measuring Cylinder Dividing the mass of a solid by its volume gives its density. The mass of a solid can be ...
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electronvolt – what is electronvolt(eV) and how is eV related to Joule?

The SI unit of energy joule is too large a unit of energy for the microscopic world. A more convenient unit of energy for the microscopic world is the electronvolt, ...
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How to convert between degrees and radians -degree and radian conversion formulas

Angular displacement is often expressed in one of three units. The first is the degree, and it is well known that there are 360 degrees in a circle. The second ...
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What is the difference between fundamental quantity and derived quantity?

Length, Mass, and Time – Each of these 3 physical quantities doesn’t depend on any other quantity for its measurement. So these 3 are called Fundamental quantities. Other quantities like ...
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Conversions of Volume units – litre to m3 or litre to cm3 | liter to m3 or liter to cm3

Very often while solving numerical problems of physics we need to take the help of Conversions of Volume units - litre to m3 or litre to cm3 or vice versa ...
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km/h to m/s – unit conversion from kilometer/hour to meter/second

figure 1: km/h to m/s - unit conversion from kilometer/hour to meter/second and vice versa Km/h to m/s or km/hr to m/s conversion: To convert km/hr value to m/s value ...
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Any Difference between mole and molecule? |Any difference between mol or mole?

While studying the chapter on gas laws you must have come across the term 'mole' or 'mol'. You may have seen gram-mol as well in that chapter. I find many ...
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How does Density differ from Relative Density? | Density & Relative density FAQs

Density is the mass per unit volume. The unit of density in SI is Kg/meter3. The relative density or specific gravity of a substance is the ratio of its own ...
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