Waves required practicals for AQA GCSE Combined Science Trilogy 5thingstodotoday AQA GCSE Physics Combined Triilogy September 9, 2022 Required practical activity 20: make observations to identify the suitability of apparatus to measure the frequency, wavelength and speed of waves in a ripple tank and waves in a solid and take appropriate measurements. Share this:TwitterFacebookLike this:Like Loading... Related Published September 9, 2022