Implementing | OCR A-Level Physics B (Advancing Physics) (H557)
Implementing
- 46 questions
- 3 subtopics
- Practical and data analysis skills, examined on all three papers
- Component 01, Component 02 and Component 03
Implementing is examined in all three written papers — the specification states that Components 01, 02 and 03 each assess content from across all the teaching modules, so nothing is confined to one paper.
It covers using apparatus and techniques correctly, units for measurements and recording and presenting observations.
Sample questions from Implementing
Answer each one closed book first, then open the answer.
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Using apparatus and techniques correctly
What must be done before a thermometer reading is taken?
Show the answer
The bulb must be fully immersed in the substance and left long enough for the thermometer to reach the same temperature as it. -
Using apparatus and techniques correctly
Why should a circuit be switched on only while each reading is taken?
Show the answer
Current heats the components, and a rising temperature changes their resistance so the readings drift away from the value being measured. -
Units for measurements
What is the unit of resistivity?
Show the answer
Resistivity is measured in Ω m. -
Units for measurements
Express a wavelength of 500 nm in metres.
Show the answer
It is 5.00 × 10⁻⁷ m. -
Recording and presenting observations
What kinds of qualitative observation are worth recording in a physics experiment?
Show the answer
The colour change of a lamp filament as the current rises, or the fact that a wire became warm to the touch during a set of readings. -
Recording and presenting observations
Why should the rows of a table be arranged in order of increasing independent variable?
Show the answer
A trend and any reading that breaks it are then obvious at a glance, before the graph is even plotted.
The 3 subtopics
One subtopic is one session. Work down the list.
| Subtopic | What it covers | Questions |
|---|---|---|
| Using apparatus and techniques correctly | Recall questions on avoiding parallax, where meters go in a circuit and why their resistances differ, clamping and levelling apparatus, circuit care while reading, and zeroing a balance. | 15 |
| Units for measurements | Recall questions on the SI base units, expressing the newton, joule, volt and coulomb in base units, the units of the Young modulus and resistivity, converting cm³, g cm⁻³, cm², GHz and nm, checking v² = u² + 2as for consistent units, units in table headings, negative indices, and using units to catch a wrong equation. | 16 |
| Recording and presenting observations | Recall questions on setting out results tables and their headings, recording raw readings to the right precision, qualitative observations worth noting, bar charts versus line graphs, and the three parts of a properly quoted final result. | 15 |
How the guide is worked
Answering a question from memory stores it far better than reading the answer again. The guide runs that as a fixed procedure on one subtopic at a time, about twenty minutes a session.
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Step 1 · Closed book
Cover the answers. Work through one subtopic and write down what you can. Leave blanks where you have nothing.
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Step 2 · Open book
Go back to the top. Read each printed answer and write it out in full, including the ones you had right.
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Step 3 · Closed book again
Same questions, same order, from memory. The gap between pass one and pass three is the session result.
Read the full method, the return schedule and the research behind it.
Nearby topics
OCR A-Level Physics B (Advancing Physics) Active Recall Guide
Every topic, not just this one. 2,455 questions with their answers.