Exam-style question
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In AQA A-level Physics medical physics, which option best applies imaging principle to Describe how electrodes detect electrical signals from the heart.?.
- A.It links imaging principle to Describe how electrodes detect electrical signals from the he? in ECG machines and the normal ECG wavef?.
- B.It describes the equipment only, without applying Describe how electrodes detect electrical sig?.
- C.It gives a general medical claim without using the relevant physics evidence.
- D.It confuses the patient outcome with the physical quantity being measured.
Model answer
What a good answer should say
- The correct option is It links imaging principle to Describe how electrodes detect electrical signals from the he?
- in ECG machines and the normal ECG wavef?.
Explanation
Why this works
It is correct because it uses the learning objective and the ECG machines and the normal ECG waveform context to connect the medical situation to the underlying physics. The alternatives are weaker because they either omit the physics evidence, describe equipment without application, or confuse clinical outcome with the measured physical quantity.
Common mistake
No common mistake is linked to this question yet.