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MYP Physics · 19 · extended response

An electrostatic particle collector

Physics in society · Original GioPhysics question with a detailed, mark-by-mark answer guide.

Demand
discriminating
Marks
8
Topics
1
Answer
Complete
Question8 marks

A facility proposes an electrostatic particle collector to reduce particles leaving a controlled industrial process. Supplied pilot evidence: In one test the particle reading fell from 200 to 40 instrument units, but the test did not measure gases or long-term plate fouling. Collected material still requires disposal, equipment uses energy, and some designs can generate unwanted by-products. Evaluate the proposal for workers, nearby residents and waste handlers. Explain the relevant physics, distinguish evidence from an assumption, discuss a benefit and a cost or ethical issue, and make a conditional recommendation with one further evidence requirement. Treat the supplied figures as a fictional classroom case, not as current product or safety guidance.

Task interpretation

What a complete response should do

Organise the response into a logical argument, linking the physics principle to the evidence and conclusion.

Make assumptions explicit, connect several ideas, and test whether the final result is physically reasonable.

Response type
extended response
Allocation
8 marks
Demand
discriminating
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