Edexcel IGCSE 2009 Science (Double Award) - 4SC0

Edexcel IGCSE Physics Revision Guide 20. Section 3: Waves. a) Units. b) Properties of waves. Students will be assessed on their ability to: 3.1 use the following units: degree (o), hertz (Hz), metre (m), metre/second (m/s), second (s). 3.2 describe longitudinal and transverse waves in ropes, springs and water where appropriate ................
................