Temperature is a fundamental concept in physics, representing the degree of hotness or coldness of an object or substance. It's typically measured using a thermometer , and expressed in units such as Celsius, Fahrenheit, or Kelvin. Let's dive deeper into these units and understand how they're used and converted.
Understanding Units of Temperature: Celsius, Fahrenheit, Kelvin and More
Last Updated on Jul 31, 2023
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The Kelvin: The SI Unit of Temperature
The Kelvin, denoted as K, is the standard unit of temperature according to the International System of Units (SI). It's widely used in scientific and engineering contexts. However, for everyday measurements, most people use the Celsius or Fahrenheit scale.
Here's how you can convert between Celsius, Fahrenheit, and Kelvin:
Converting Between Temperature Scales
Since Celsius, Fahrenheit, and Kelvin are the most commonly used temperature scales, it's essential to know how to convert between them. The table below provides the conversion formulas for these units.
A Look at Other Temperature Units
Apart from the main three, there are several other units of temperature, including Rankine, Newton, Rømer, Réaumur, and Delisle. Let's see how these units relate to the Celsius scale.
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Frequently Asked Questions
What is the SI unit of temperature?
The SI unit of temperature as per the International System of Units is Kelvin which is represented by the symbol K.
What is heat transfer by conduction?
It is the method in which the transfer of heat takes place between atoms and molecules in direct contact.
Define heat.
Heat is defined as the total energy of an object that has molecular motion inside it. The SI unit of heat is Joule.
Define temperature.
Temperature is defined as the measure of the thermal energy of an object. The SI unit of temperature as per the International System of Units is Kelvin.
What is convection and radiation?
Convection: It is the method in which the transfer of heat happens by the movement of the heated substance. Radiation: It is the method in which the transfer of heat takes place by electromagnetic waves.
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