Class experiment: Something like a blade can oscillate on its own at a definite frequency. Here students investigate what...

Practical Activity 14-16

Demonstration and Class practical: To demonstrate S.H.M. of a mass on a spring and gather accurate data using a datalogger.

Practical Activity 14-16

Demonstration: A mass suspended on a spring will oscillate after being displaced. The period of oscillation is affected by the...

Practical Activity 14-16

Photons are all-or-nothing entities: you cannot emit or absorb half a photon. (Remember that to detect a photon you have to...

Physics Narrative 14-16

Simple harmonic oscillators show resonance if they are forced to vibrate at their natural frequency. This is a phenomenon of...

Lesson 16-19

The two identical bottles vibrate at the same natural frequency. So when one vibrates and produces a note, this makes the...

Enrichment Activity 5-11 11-14

Rubbing the glass makes it vibrate at its natural frequency. Because the other glass is identical it has the same natural...

Enrichment Activity 5-11 11-14