Eduqas GCSE Combined Sciences Revision
Explore Eduqas GCSE Combined Sciences revision topics. Check the official specification for complete requirements for your exam year and route.
Course details
Assessment For assessment details, see the official specification.
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Reviewed course guidance
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Paper tier
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Topic group
Reviewed requirements
- Core
Scope: Core · Topic 5, Waves in matter, point (a): wave speed = frequency × wavelength; period = 1/frequency
Open revision guidance
What to know
- Describe wave motion using amplitude (maximum displacement), wavelength (length of one cycle), frequency (cycles per second) and period (time for one cycle).
- Apply v = fλ for wave speed and T = 1/f for period and frequency. Use compatible units: f in hertz, λ in metres, v in m s⁻¹ and T in seconds.
What to do in an assessment
- Identify the requested quantity, rearrange the correct relationship and check units. Convert wavelength to metres before using v = fλ.
In plain language
Amplitude describes the size of the oscillation; wavelength and period describe the cycle in distance and time. Frequency and wavelength together determine wave speed.
Self-check
A wave has frequency 200 Hz and wavelength 1.5 m. What are its speed and period?
Show the answer
v = 200 × 1.5 = 300 m s⁻¹; T = 1/200 = 0.0050 s.
Earlier topic checklist
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Combined Sciences topic list
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Foundation tier topics
Higher tier topics
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