A Level Year 13 / Physics / Curriculum
Electromagnetism: structured theory, worked examples, answered practice, and a mastery checklist for A Level Year 13.
Раздел
Ключевые идеи главы в понятной последовательности перед практикой.
Charge is a property, current is charge flow rate, and potential difference is energy per unit charge. Keep these definitions distinct.
Draw a closed circuit with correct symbols. Apply charge conservation at junctions and energy conservation around loops where required.
Field lines indicate direction and relative strength. In induction, changing magnetic flux is linked to induced potential difference.
For “Magnetic fields”, 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 “Force on currents”, 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 “Force on charges”, 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 “Electromagnetic induction”, 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 “Alternating currents”, 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 4 Ω resistor is connected across 16 V. Find current and power.
I = 4 A, P = 64 W
Before calculating, explain the key idea from “Magnetic fields” and which conditions must be checked.
The answer should show not only which rule is used for “Magnetic fields”, but also why it is valid here.
Electromagnetism
Восемь заданий от базовых навыков до экзаменационного уровня. Сначала решите самостоятельно.
A 3 Ω resistor carries 7 A. Find voltage and power.
V=IR and P=VI.
V=21 V, P=147 W.
Structure a solution for “Force on currents”: givens, SI units, law, substitution, and interpretation.
State the law before substituting numbers.
A full solution states symbols/units, selects a valid law for “Force on currents”, shows substitution and calculation, and interprets the result.
Identify three uncertainty sources in measuring “Force on charges” 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 “Electromagnetic induction” 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 “Alternating currents” 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 “Transformers where included” 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 “Magnetic fields” 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 “Force on currents” 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.
Electromagnetism
Шесть разных заданий от базового уровня до сложного с временем, подсказками и ответами.
Homework 1: A 4 Ω resistor carries 3 A. Find voltage and power.
V=IR and P=VI.
V=12 V, P=36 W.
Homework 2: Structure a solution for “Force on currents”: givens, SI units, law, substitution, and interpretation.
State the law before substituting numbers.
A full solution states symbols/units, selects a valid law for “Force on currents”, shows substitution and calculation, and interprets the result.
Homework 3: Identify three uncertainty sources in measuring “Force on charges” 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 “Electromagnetic induction” 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 “Alternating currents” 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 “Transformers where included” 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 4 Ω resistor carries 8 A. Find voltage and power.
2 балловV=32 V, P=256 W.
2. Structure a solution for “Force on currents”: givens, SI units, law, substitution, and interpretation.
3 балловA full solution states symbols/units, selects a valid law for “Force on currents”, shows substitution and calculation, and interprets the result.
3. Identify three uncertainty sources in measuring “Force on charges” 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 “Electromagnetic induction” 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 “Alternating currents” 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 “Transformers where included” 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 “Magnetic fields” 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 “Force on currents” 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 “Force on charges”, 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 2 Ω resistor carries 7 A. Find voltage and power.
5 балловV=14 V, P=98 W.
Раздел
Источники программы; порядок тем уточняйте в школе и у преподавателя.
Physics
A Level Year 13: 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.
