A Level Year 12 / Physics / Curriculum
Particle and nuclear physics: structured theory, worked examples, answered practice, and a mastery checklist for A Level Year 12.
Раздел
Ключевые идеи главы в понятной последовательности перед практикой.
Modern physics uses models tested by spectra, scattering, decays, and detectors. Distinguish an observation from its interpretation.
A single nuclear decay is random, but large samples follow predictable laws. Use half-life or an exponential relation with the correct scale.
In atomic and nuclear processes, check energy, momentum, charge, and particle numbers where applicable. Do not mix eV and J without conversion.
For “Atomic structure”, start from an observation or model, define quantities and units where relevant, and separate the changed factor from the measured outcome. Support the conclusion with data and state the test's limitations.
For “Nuclei and isotopes”, start from an observation or model, define quantities and units where relevant, and separate the changed factor from the measured outcome. Support the conclusion with data and state the test's limitations.
For “Fundamental particles in AS scope”, start from an observation or model, define quantities and units where relevant, and separate the changed factor from the measured outcome. Support the conclusion with data and state the test's limitations.
For “Radioactive decay basics”, start from an observation or model, define quantities and units where relevant, and separate the changed factor from the measured outcome. Support the conclusion with data and state the test's limitations.
Physics
Следуйте методу шаг за шагом и проверяйте обоснование каждого шага.
A sample starts with 80 active nuclei and 4 half-lives pass. How many are expected?
N = 5
Before calculating, explain the key idea from “Atomic structure” and which conditions must be checked.
The answer should show not only which rule is used for “Atomic structure”, but also why it is valid here.
Particle and nuclear physics
Восемь заданий от базовых навыков до экзаменационного уровня. Сначала решите самостоятельно.
A sample starts with 280 nuclei. How many are expected after three half-lives?
Halve three times.
35.
Structure a solution for “Nuclei and isotopes”: givens, SI units, law, substitution, and interpretation.
State the law before substituting numbers.
A full solution states symbols/units, selects a valid law for “Nuclei and isotopes”, shows substitution and calculation, and interprets the result.
Identify three uncertainty sources in measuring “Fundamental particles in AS scope” and improve each one.
Consider instrument resolution, reaction time, repeats, and controls.
A full response links each specific error source to a targeted improvement and identifies random or systematic impact.
Plan a suitable graph for “Radioactive decay basics” data and explain how to obtain a gradient or relationship.
Put the independent variable on x and dependent variable on y.
A full response labels axes/units, uses a suitable scale and best fit; gradient uses a large triangle and is interpreted with units.
Check whether a result for “Atomic structure” is sensible using units, order of magnitude, and a limiting case.
A check should not merely repeat the same calculation.
A full check confirms dimensions/units, compares expected magnitude, and tests behaviour when one variable becomes very small or large.
Connect “Nuclei and isotopes” to energy conservation or a force/field model and justify the choice.
Define the system and interactions.
A full response defines the system, describes transfer or interaction, applies the appropriate model, and states losses or limitations.
Write a multi-step exam response about “Fundamental particles in AS scope” with calculation and evaluation.
Separate givens, model, calculation, result, and evaluation.
A full response includes an appropriate diagram/model, laws, algebraic rearrangement, SI substitution, suitably precise result, and evaluation of assumptions.
Compare two methods for investigating “Radioactive decay basics” and select the more reliable using criteria.
Use accuracy, repeatability, control, and safety.
The choice must use at least three comparable criteria and acknowledge one trade-off or limitation.
Particle and nuclear physics
Шесть разных заданий от базового уровня до сложного с временем, подсказками и ответами.
Homework 1: A sample starts with 144 nuclei. How many are expected after three half-lives?
Halve three times.
18.
Homework 2: Structure a solution for “Nuclei and isotopes”: givens, SI units, law, substitution, and interpretation.
State the law before substituting numbers.
A full solution states symbols/units, selects a valid law for “Nuclei and isotopes”, shows substitution and calculation, and interprets the result.
Homework 3: Identify three uncertainty sources in measuring “Fundamental particles in AS scope” and improve each one.
Consider instrument resolution, reaction time, repeats, and controls.
A full response links each specific error source to a targeted improvement and identifies random or systematic impact.
Homework 4: Plan a suitable graph for “Radioactive decay basics” data and explain how to obtain a gradient or relationship.
Put the independent variable on x and dependent variable on y.
A full response labels axes/units, uses a suitable scale and best fit; gradient uses a large triangle and is interpreted with units.
Homework 5: Check whether a result for “Atomic structure” is sensible using units, order of magnitude, and a limiting case.
A check should not merely repeat the same calculation.
A full check confirms dimensions/units, compares expected magnitude, and tests behaviour when one variable becomes very small or large.
Homework 6: Connect “Nuclei and isotopes” to energy conservation or a force/field model and justify the choice.
Define the system and interactions.
A full response defines the system, describes transfer or interaction, applies the appropriate model, and states losses or limitations.
50 минут / 40 баллов
Полный тест с таймером, баллами и образцами ответов.
Start the timer when ready, work without notes, show every step, and open model answers only after finishing.
1. A sample starts with 384 nuclei. How many are expected after three half-lives?
2 баллов48.
2. Structure a solution for “Nuclei and isotopes”: givens, SI units, law, substitution, and interpretation.
3 балловA full solution states symbols/units, selects a valid law for “Nuclei and isotopes”, shows substitution and calculation, and interprets the result.
3. Identify three uncertainty sources in measuring “Fundamental particles in AS scope” and improve each one.
3 балловA full response links each specific error source to a targeted improvement and identifies random or systematic impact.
4. Plan a suitable graph for “Radioactive decay basics” data and explain how to obtain a gradient or relationship.
4 балловA full response labels axes/units, uses a suitable scale and best fit; gradient uses a large triangle and is interpreted with units.
5. Check whether a result for “Atomic structure” is sensible using units, order of magnitude, and a limiting case.
4 балловA full check confirms dimensions/units, compares expected magnitude, and tests behaviour when one variable becomes very small or large.
6. Connect “Nuclei and isotopes” to energy conservation or a force/field model and justify the choice.
4 балловA full response defines the system, describes transfer or interaction, applies the appropriate model, and states losses or limitations.
7. Write a multi-step exam response about “Fundamental particles in AS scope” with calculation and evaluation.
5 балловA full response includes an appropriate diagram/model, laws, algebraic rearrangement, SI substitution, suitably precise result, and evaluation of assumptions.
8. Compare two methods for investigating “Radioactive decay basics” and select the more reliable using criteria.
5 балловThe choice must use at least three comparable criteria and acknowledge one trade-off or limitation.
9. Create an extension question about “Atomic structure”, a prediction, and a data-collection plan.
5 балловA full response gives a testable question, justified prediction, independent-variable range, repeats, and an analysis method.
10. A sample starts with 224 nuclei. How many are expected after three half-lives?
5 баллов28.
Раздел
Источники программы; порядок тем уточняйте в школе и у преподавателя.
Physics
A Level Year 12: структурированный маршрут по математике и физике с главами, практикой и следующими шагами.
Структура следует учебнику и помогает организовать изучение темы.
Темы, где чаще возникают ошибки или нужна дополнительная практика.
С чего начать: учебник, daily material, PDFs, videos и worked examples.
Целевая практика перед full tests, чтобы coverage было понятным.
Как измерять прогресс по главе и когда включать ее в общий mock.
Что делать после главы и как она связана со следующим разделом.
Примечание: официальную экзаменационную программу каждого года всегда уточняйте в школе, у преподавателя и по текущим официальным источникам.
