เสียงที่ใช้ร่วมกัน

Here are **detailed Form 2 Physics notes on Waves** (commonly taught in many secondary school syllabuses). You can copy these into an AI exam generator or AI lecturer to test it. --- # WAVES – FORM 2 PHYSICS NOTES ## 1. Definition of Waves A **wave** is a **disturbance that transfers energy from one point to another without permanent transfer of matter**. When a wave moves through a medium: * Energy moves forward * The particles of the medium **only vibrate about their fixed positions** E