Temperature
Temperature is a measure of the degree of hotness of an object. The higher the temperature, the more internal energy the object has. Temperature is measured on fixed scales such as the Celsius (centigrade), Fahrenheit and the absolute scale. The Celsius scale is defined by the ice point 0°C and the steam point 100°C. The Kelvin scale is defined by absolute zero (0K) and the triple point of water 273.16K.

Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz
BrainCake is free. Make an account in seconds and pick up where this page stops.
Key terms in this lesson
- internal energy
- The sum of the randomly distributed kinetic and potential energies of the particles, atoms or molecules, of a system.
More in Thermal Physics
All 4 lessons in Thermal Physics · All OCR A-level Physics topics