A digital hydrophone records the low-frequency acoustic pressure waves of blue whales. The continuous analogue sound signal is converted into a digital format by measuring the signal's amplitude at regular intervals.
Define the term 'sampling rate' in this context.
40 exam-style questions on Edexcel GCSE Computer Science Data representation, covering Encoding characters with 7-bit ASCII, Representing bitmap images in binary, Representing analogue sound in binary, and Limitations of binary representation. Each one has a worked solution and a mark scheme showing where the marks go.