A blog covering and explaining the OCR A2 (and AS) Physics A specification for the 2018 summer exams (examinations from 2015 onwards). GOOD LUCK! I have separated the sections to make fees easier to find. Hope it helps:)
Showing posts with label 1.1 Practical skills assessed in a written examination. Show all posts
Showing posts with label 1.1 Practical skills assessed in a written examination. Show all posts
Wednesday, 18 April 2018
1.1.2 Implementing
Basically, we need to know how to use practical apparatus. We all already know how to do this from our practical endorsement experiments.
1.1.4 Evaluation
Following on from an experiment we need to be able to:
- Evaluate results and draw conclusions
- Evaluate how the scientific community use results to validate new knowledge and ensure integrity
- Refine experimental design by suggestion of improvements to the procedures and apparatus.
- Precisely and accurately measure data of measurements and data, including margins of error, percentage errors and uncertainties in apparatus
- Identify:
- anomalies in experimental measurements
- limitations in experimental procedures
1.1.3 Analysis
Following on from an experiment we need to be able to:
- Process, analyse, and interpret qualitative and quantitative experimental results
- Reach valid conclusions (where appropriate)
- Use appropriate mathematical skills for analysis of quantitative data
- Use appropriate significant figures
- Plot and interpret suitable graphs from experimental results
- Select and label axes with appropriate scales, quantities and units
- Measure gradients and intercepts.
1.1.1 Planning
Basically, in an exam they might ask us to design/explain an experiment. We need to be able to do the following:
- Design experiments
- Include a selection of suitable apparatus, equipment and techniques for the proposed experiment
- Apply scientific knowledge based on the content of the spec (this spec lol)
- Identification of variables that must be controlled (if applicable)
- Evaluate whether an experimental method is appropriate to meet the expected outcomes
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