Цілі навчання
- Describe “poles” using evidence from observation, measurement, or a model.
- Describe “attraction” using evidence from observation, measurement, or a model.
- Describe “repulsion” using evidence from observation, measurement, or a model.
Year 3 / Primary Science / Physics foundations / Forces and magnets
Magnetic forces
Magnetic forces: structured theory, worked examples, answered practice, and a mastery checklist for Year 3.
Ключові ідеї та перевірки
- I draw and analyse a circuit with correct instruments.
- I connect charge, current, voltage, resistance, and power.
- Every solution or explanation for “Magnetic forces” should include a method, justification, and final check.
Розділ
Основна теорія
Ключові ідеї глави у зрозумілій послідовності перед практикою.
Charge, current, and potential difference
Charge is a property, current is charge flow rate, and potential difference is energy per unit charge. Keep these definitions distinct.
Circuit and conservation
Draw a closed circuit with correct symbols. Apply charge conservation at junctions and energy conservation around loops where required.
Fields and induction
Field lines indicate direction and relative strength. In induction, changing magnetic flux is linked to induced potential difference.
poles
For “poles”, 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.
attraction
For “attraction”, 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.
repulsion
For “repulsion”, 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.
Primary Science / Physics foundations
Розв'язані приклади
Дотримуйтесь методу крок за кроком і перевіряйте обґрунтування.
Worked enquiry example
In a safe test about “poles”, the first condition gives 14 units and the second 11. Which is greater, and what should be kept the same?
- 1Compare the two measurements.
- 2State the changed factor and the conditions that must stay the same.
- 3Write a conclusion supported only by the data.
The first value is greater by 3 units. A fair test changes only one factor.
Thinking and explanation example
Explain “poles” in your own words and use a picture, objects, a table, or a simple measurement to support it.
- 1State what is known and what is being found.
- 2Choose one clear representation.
- 3Explain what it shows and check that the answer is sensible.
A complete explanation connects the correct idea, a clear representation, and a sensible check.
Magnetic forces
Практика з відповідями
Вісім завдань від базових навичок до екзаменаційного рівня. Спочатку виконайте самостійно.
Базова навичка3 хвилин
Record 9 safe observations about “poles” without writing a conclusion yet.
Підказка
An observation is something seen, heard, or measured.
Відповідь
The response needs 9 specific observable or measurable statements, not guesses about cause.
Базова навичка4 хвилин
Design a fair test for “attraction”: what changes, what is measured, and which 3 things stay the same?
Підказка
Change one factor only.
Відповідь
Full response: one changed factor, one measurable outcome, and 3 controlled conditions.
Застосування4 хвилин
Measurements are 8, 5, and 13 units. Put them in a table, find the greatest, and the difference from the least.
Підказка
Use condition and measurement headings.
Відповідь
Greatest 13, least 5, difference 8 units.
Застосування5 хвилин
Sort examples of “poles” into two groups and state the sorting rule.
Підказка
Each item should clearly match one group.
Відповідь
A full response gives two named groups, at least two examples in each, and an observable sorting rule.
Обґрунтування5 хвилин
Choose a suitable tool and unit to measure something connected with “attraction”.
Підказка
Decide whether you measure length, time, mass, temperature, or volume.
Відповідь
The quantity, instrument, and unit must match, e.g. time-stopwatch-s or length-ruler-cm.
Обґрунтування6 хвилин
From data 3, 9, 15, predict the next value and explain the pattern.
Підказка
Look for the constant change +6.
Відповідь
21; +6.
Екзаменаційний7 хвилин
Write 3 safety rules for a simple activity about “poles” and explain the risk each reduces.
Підказка
Link each rule to a reason.
Відповідь
A full response gives 3 specific rules, each linked to a risk, and requires supervision where appropriate.
Екзаменаційний8 хвилин
Data A=9 and B=14. Write a conclusion, evidence, and one limitation about “attraction”.
Підказка
Do not claim more than the two values show.
Відповідь
B is 5 greater than A. The values support this, but two measurements alone do not prove a general rule.
Типові помилки
- Connecting an ammeter in parallel or a voltmeter in series.
- Confusing current with voltage or saying current is consumed.
- Ignoring direction in force, field, or induction.
Перевірка розуміння
- I draw and analyse a circuit with correct instruments.
- I connect charge, current, voltage, resistance, and power.
- I interpret fields and induction with direction.
Magnetic forces
Домашня робота до розділу
Шість різних завдань від базового рівня до складного з часом, підказками та відповідями.
Базовий5 хвилин
Homework 1: Record 5 safe observations about “poles” without writing a conclusion yet.
Підказка
An observation is something seen, heard, or measured.
Відповідь
The response needs 5 specific observable or measurable statements, not guesses about cause.
Базовий6 хвилин
Homework 2: Design a fair test for “attraction”: what changes, what is measured, and which 4 things stay the same?
Підказка
Change one factor only.
Відповідь
Full response: one changed factor, one measurable outcome, and 4 controlled conditions.
Поглиблений7 хвилин
Homework 3: Measurements are 4, 6, and 10 units. Put them in a table, find the greatest, and the difference from the least.
Підказка
Use condition and measurement headings.
Відповідь
Greatest 10, least 4, difference 6 units.
Поглиблений8 хвилин
Homework 4: Sort examples of “poles” into two groups and state the sorting rule.
Підказка
Each item should clearly match one group.
Відповідь
A full response gives two named groups, at least two examples in each, and an observable sorting rule.
Складний10 хвилин
Homework 5: Choose a suitable tool and unit to measure something connected with “attraction”.
Підказка
Decide whether you measure length, time, mass, temperature, or volume.
Відповідь
The quantity, instrument, and unit must match, e.g. time-stopwatch-s or length-ruler-cm.
Складний12 хвилин
Homework 6: From data 6, 8, 10, predict the next value and explain the pattern.
Підказка
Look for the constant change +2.
Відповідь
12; +2.
35 хвилин / 30 балів
Повний тест розділу
Повний тест із таймером, балами та зразками відповідей.
Start the timer when ready, work without notes, show every step, and open model answers only after finishing.
1. Record 3 safe observations about “poles” without writing a conclusion yet.
2 балівВідповідь
The response needs 3 specific observable or measurable statements, not guesses about cause.
2. Design a fair test for “attraction”: what changes, what is measured, and which 4 things stay the same?
3 балівВідповідь
Full response: one changed factor, one measurable outcome, and 4 controlled conditions.
3. Measurements are 9, 6, and 15 units. Put them in a table, find the greatest, and the difference from the least.
3 балівВідповідь
Greatest 15, least 6, difference 9 units.
4. Sort examples of “poles” into two groups and state the sorting rule.
4 балівВідповідь
A full response gives two named groups, at least two examples in each, and an observable sorting rule.
5. Choose a suitable tool and unit to measure something connected with “attraction”.
4 балівВідповідь
The quantity, instrument, and unit must match, e.g. time-stopwatch-s or length-ruler-cm.
6. From data 4, 6, 8, predict the next value and explain the pattern.
4 балівВідповідь
10; +2.
7. Write 4 safety rules for a simple activity about “poles” and explain the risk each reduces.
5 балівВідповідь
A full response gives 4 specific rules, each linked to a risk, and requires supervision where appropriate.
8. Data A=3 and B=9. Write a conclusion, evidence, and one limitation about “attraction”.
5 балівВідповідь
B is 6 greater than A. The values support this, but two measurements alone do not prove a general rule.
Розділ
Офіційні джерела
Джерела програми; порядок тем уточнюйте у школі та викладача.
Primary Science / Physics foundations
Year 3: структурований маршрут з математики та фізики з розділами, практикою і наступними кроками.
Що покриває глава
Структура відповідає підручнику й допомагає організувати вивчення теми.
poles
attraction
repulsion
На чому сфокусуватися
Теми, де найчастіше виникають помилки або потрібна додаткова практика.
I draw and analyse a circuit with correct instruments.
I connect charge, current, voltage, resistance, and power.
I interpret fields and induction with direction.
Джерела, щоденні матеріали та ресурси
З чого почати: підручник, daily material, PDFs, videos і worked examples.
Start from the official textbook or specification referenced on the subject page.
Use the notes and examples as support, not as a replacement for the official syllabus.
Check the current syllabus version before exam preparation.
Практика за підтемами
Цільова практика перед full tests, щоб coverage було зрозумілим.
Record 9 safe observations about “poles” without writing a conclusion yet.
Design a fair test for “attraction”: what changes, what is measured, and which 3 things stay the same?
Measurements are 8, 5, and 13 units. Put them in a table, find the greatest, and the difference from the least.
Sort examples of “poles” into two groups and state the sorting rule.
Choose a suitable tool and unit to measure something connected with “attraction”.
From data 3, 9, 15, predict the next value and explain the pattern.
Write 3 safety rules for a simple activity about “poles” and explain the risk each reduces.
Data A=9 and B=14. Write a conclusion, evidence, and one limitation about “attraction”.
Mocks і перевірка прогресу
Як вимірювати прогрес у главі і коли додавати її до загального mock.
Start with untimed practice by subtopic.
Move to a short timed checkpoint only after completing the mastery checklist.
Record each error with the correct method and revisit it after 48 hours.
Наступний крок
Що робити після глави і як вона пов'язана з наступним розділом.
Complete the practice without support.
Explain the core method aloud in under two minutes.
Continue to the next chapter or request targeted tutor support.
Примітка: офіційну екзаменаційну програму кожного року завжди уточнюйте у школі, викладача та за поточними офіційними джерелами.