The aim of this activity is to reinforce the relationship between pitch and frequency, and to give some feeling for the...
To find the frequency you simply count the number of vibrations each second. An alternative way to do the counting is to find...
The two identical bottles vibrate at the same natural frequency. So when one vibrates and produces a note, this makes the...
What is light? This question might well be posed by an interested pupil. The approach taken in this topic starts on familiar...
A model of colour perception, proposed in 1872 by Ewald Hering, argued colour vision involves two opponent pairs of colours...
Stories from Physics
Recognising and celebrating outstanding contributions to the field of physics education.