9702 · 14.2
Temperature scales
In A-Level Physics, understanding how we measure **temperature** is fundamental. We'll explore two crucial scales: the everyday **Celsius scale** and the scientifically vital **Kelvin scale**. Get ready to grasp concepts like **absolute zero** and learn why Kelvin is indispensable for thermal physics calculations. This pilot aligns with **Senpai Corner** A Level notes (2025–2027) for topic **14.2**.
Need to know
What you need to know
- A thermometer is any device that is used to measure temperature.
- There are many types of thermometer e.g. liquid-in-glass. thermocouple, bimetal thermocouple, etc.
- You will need to be able to give an example for each of the above types and explain how it works.
- The Kelvin scale is also called the thermo dynamic scale.
- Absolute zero is defined as the temperature at which atoms and molecules in all substances have zero kinetic and potential energy.
Explanation
Temperature scales
- A thermometer is any device that is used to measure temperature.
- There are many types of thermometer e.g. liquid-in-glass. thermocouple, bimetal thermocouple, etc.
- You will need to be able to give an example for each of the above types and explain how it works.
- The Kelvin scale is also called the thermo dynamic scale.