2.1 Wave Quantities and Behaviour
Transverse and longitudinal waves, amplitude, wavelength, frequency, period, wave speed, reflection, refraction and diffraction.
How to study for CCEA GCSE Physics
Link every equation to a physical model and unit, interpret graphs and evidence, and prepare each prescribed practical from method through evaluation.
Core concepts
Concept 1
Transverse oscillations are perpendicular to energy transfer, while longitudinal oscillations are parallel.
Exam cue: Confirm the CCEA unit, tier and whether the task tests a model, calculation, explanation or practical judgement.
Concept 2
Wave speed equals frequency multiplied by wavelength, with consistent hertz, metres and metres-per-second units.
Exam cue: Label one complete wavelength in the correct direction, convert frequency units and explain behaviour through speed, direction or gap size.
Concept 3
Reflection, refraction and diffraction change wave direction or spreading without transferring matter overall.
Exam cue: Show substitutions and units, connect evidence to the physical model and limit the conclusion to the stated conditions.
Risk pitfalls and guardrails
Measuring wavelength between non-equivalent points or saying wave particles travel with the energy.
Guardrail: Do not import an England board, Single Award or Double Award structure, and do not replace a causal physical explanation with an equation alone.
Importing an equation sheet, Higher-only boundary or paper convention from an England 9-1 board.
Guardrail: Use the current CCEA formatting to confirm Higher-only content and the correct paper duration; do not infer tier scope from another exam board.
Giving a calculator display or named law without the working, units, causal explanation or evidence the command word requires.
Guardrail: Do not import an England board, Single Award or Double Award structure, and do not replace a causal physical explanation with an equation alone.
Memory anchors
Amplitude
Maximum displacement from the equilibrium position.
Wavelength
Distance between adjacent points in phase on a wave.
Frequency
Number of complete oscillations per second, measured in hertz.
Period
Time for one complete oscillation.
Transverse wave
A wave whose oscillations are perpendicular to energy transfer.
Longitudinal wave
A wave whose oscillations are parallel to energy transfer.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
Which description identifies a transverse wave?
Compressions travel along a slinky while each coil oscillates along the slinky's length. Which description classifies this wave?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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