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P3 Ex

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P3 Ex
Controlled Assessment – Additional Science / Physics ISA PU2.x
Friction (Specimen)
For use from May 20xx to April 20xx
Teachers’ Notes
This ISA relates to Additional Science / Physics Unit 2: P2.1.3 Forces and braking
A vehicle’s braking distance can be affected by adverse road and weather conditions and poor condition of the vehicle
Overview
Candidates should:
• develop hypotheses and plan practical ways to test them
• make risk assessments and manage risks when carrying out practical work
• collect, process, analyse and interpret primary and secondary data, including the use of appropriate technology to draw evidence-based conclusions
• review methodology to assess fitness for purpose, and review predictions in light of outcomes.
The teacher should describe the context in which the investigation is set and outline the problem that is to be investigated.
Candidates need to develop their own hypothesis. They should research two possible methods to investigate it, and develop a detailed plan for one of these methods.
Once the candidates have researched and written up their own plan in the first part of the ISA they should carry out their investigation providing that it is workable, safe and manageable in the laboratory. Candidates then take Section 1 of the ISA, which contains questions about their research and their plan. Candidates then carry out experimental work and process their results.
After this, candidates take Section 2 of the ISA, in which they analyse their results and use data selected from a data sheet of secondary data to comment on the outcomes of their experimental work. Risk Assessment
It is the responsibility of the centre to ensure that a risk assessment is carried out.

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