4.6.2.3 Waves 1

Spec reference: 4.6.2 (subtopic).

What you need to know

• (KO snippet not found yet — we can map this manually.)

Self-assessment (checklist)

• I can construct ray diagrams to illustrate the
• I can describe a method to investigate how the

Key steps (method)

• Identify what the question is testing and use the correct equation/definition.
• Show substitutions and units clearly.

Common mistakes

• Unit conversions, rearranging errors, or quoting a law without applying it.