A focused three-component revision and exam practice pack for SP4b Wave Speeds, covering the complete Edexcel Separate Science Physics specification for wave speed measurement and calculation (P4.6, P4.7, P4.17 - including the core practical).

Topic Mastery Sheet covers both wave speed equations with the quantities, units and how to choose between them; the echo method for measuring speed of sound including a key source of systematic error that produces approximately half the correct value; and methods for measuring wave speed in water and solids as required by the core practical specification point. Improvements to experimental method and sources of error are included.

Student Exam Practice Sheet includes a multi-step frequency and wave speed calculation, a multi-part echo method question including a calculation, identifying and explaining an error made by a second student, and suggesting improvements, plus a question on wave measurement at a harbour. Question format matches Edexcel test style.

Teacher Answer Key provides a complete mark scheme with step-by-step calculation marking and specific guidance on what the error-identification question requires for each mark.

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