Identify the term for what is measured each time a sound wave is sampled.
Mark scheme
- A Amplitude (1)
- The only correct answer is A. The correct answer is amplitude (the height of the sound wave).
- B is not correct because bit depth is the number of bits used to store each sample
- C is not correct because sample interval is the time between samples
- D is not correct because sample rate is the number of samples taken each second
Example answers and how they were marked
Full marks1/1
A Amplitude
Why: Selects the only correct option (1).
No marks0/1
C Sample interval
Why: Near miss: sample interval is the time between samples, not what is measured at each sample (0).
No marks0/1
D Sample rate
Why: Typical confusion: sample rate is how often samples are taken, not the measurement taken at each sample (0).