# Units And Measurement

## What unit of measurement is used for mass?

We measure objects not only in physics or chemistry labs but in our day-to-day life. Whenever we are measuring any object we must measure it according to some predefined units which are standards for the industry and the scientific community. Let’s learn about some standard units of measurement for measuring mass.  What unit of measurement …

## Order of magnitude Physics

In physics, we come across quantities that vary over a wide range. For example, we deal with both massive planetary objects like planets and galaxies, as well as very microscopic particles like the nucleus of an atom.No matter how massive or small a physical quantity is, we need magnitude to describe it.For a physical quantity, …

## Which symbol and unit of measurement are used for voltage?

The voltage or electric potential difference isthe difference in electric potential between two points. Voltage is defined as the work done per unit of charge to move a test charge between the two points in an electric field. Mathematically, V = φ2 – φ1 V is the voltage between point 2 and 1 in volts …

## What is the unit of measurement used for atomic particles?

An atom is the smallest unit that makes up an element, but it is not the smallest or fundamental particle of matter. Atoms itself are made up of various particles like electrons, neutrons and protons. Like larger masses which we study in Newtonian mechanics we are required to measure mass, charge, radius etc of various …

## How are the base unit and derived units related?

Do you ever wonder how tall Mount Everest is? Or how far is San Francisco from New Delhi? Well, Mount Everest is 8,849 meters tall, and San Francisco is 12,349 kilometers away from New Delhi. But to derive a precise answer to such a question, we need to find a way to measure physical quantities. …

## CFM (Cubic Feet per Minutes) unit and its practical application

CFM? You must have noticed this term mentioned frequently in the HVAC industry (heating, ventilation, and air conditioning). The term CFM is an abbreviation for Cubic Feet per Minutes. It is a volumetric flow unit that defines the volume of air (in cubic feet) that can be moved or exchanged each minute.  The CFM unit …

## Why is Volume Measured by a Derived Unit?

Space occupied by an object is called volume and is equal to length times width times height. Since volume depends on measurement of length, width and height, units of volume are measured by a derived unit with units of length as their base unit. Units are very important when it comes to measuring anything. They …

## What is the unit of measurement for light in photography?

Light Measurement in Photography Light plays a very important role in photography. It is an enhancement that anyone can optimize setting the site of photography properly or sometimes with additional equipment. Overall, it is not just about bright or dark but a lot more than that. The theme, mood, tone, vibrancy, etc. all depend on …

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