Exam-style question
Try this first
Explain how hearing aids improve hearing by amplifying sound. Include the role of the microphone and speaker in your answer.
Model answer
What a good answer should say
- Hearing aids improve hearing by using a microphone to pick up sound waves, which are then converted into electrical signals.
- These signals are amplified and sent to a speaker, which converts them back into sound waves at a higher volume, making it easier for the user to hear.
Explanation
Why this works
This answer effectively describes the process of sound amplification in hearing aids, demonstrating an understanding of the components involved. It tests the student's ability to connect the function of hearing aids to their physical components.
Common mistake
No common mistake is linked to this question yet.