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  1. Главная
  2. ›STUDY GUIDE
  3. ›UK, Cambridge, A Level и IB
  4. ›IB Diploma DP1
  5. ›Physics
  6. ›Theme A: Space, time and motion

IB Diploma DP1 / Physics / Curriculum

Theme A: Space, time and motion

Theme A: Space, time and motion: structured theory, worked examples, answered practice, and a mastery checklist for IB Diploma DP1.

Цели обучения

  • ✓Describe “Kinematics” using evidence from observation, measurement, or a model.
  • ✓Describe “Forces” using evidence from observation, measurement, or a model.
  • ✓Describe “Momentum” using evidence from observation, measurement, or a model.
  • ✓Describe “Work, energy and power” using evidence from observation, measurement, or a model.
  • ✓Describe “Rigid body mechanics in HL scope” using evidence from observation, measurement, or a model.

Ключевые идеи и проверки

  • I connect a model with experimental evidence.
  • I apply half-life or an energy relation correctly.
  • Every solution or explanation for “Theme A: Space, time and motion” should include a method, justification, and final check.

Раздел

Основная теория

Ключевые идеи главы в понятной последовательности перед практикой.

01

Model and experimental evidence

Modern physics uses models tested by spectra, scattering, decays, and detectors. Distinguish an observation from its interpretation.

02

Probability and scale

A single nuclear decay is random, but large samples follow predictable laws. Use half-life or an exponential relation with the correct scale.

03

Energy and conservation

In atomic and nuclear processes, check energy, momentum, charge, and particle numbers where applicable. Do not mix eV and J without conversion.

04

Kinematics

For “Kinematics”, 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.

05

Forces

For “Forces”, 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.

06

Momentum

For “Momentum”, 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.

07

Work, energy and power

For “Work, energy and power”, 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.

08

Rigid body mechanics in HL scope

For “Rigid body mechanics in HL 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.

Physics

Разобранные примеры

Следуйте методу шаг за шагом и проверяйте обоснование каждого шага.

Worked half-life example

A sample starts with 640 active nuclei and 3 half-lives pass. How many are expected?

  1. 1The expected count halves each half-life.
  2. 2Use N = 640·(1/2)^3.
  3. 3This is a statistical expectation, not a prediction for each nucleus.

N = 80

Reasoning example

Before calculating, explain the key idea from “Kinematics” and which conditions must be checked.

  1. 1Define the idea in one clear sentence.
  2. 2Connect it to a representation, law, or formula.
  3. 3State a restriction, unit, or final check that makes the solution valid.

The answer should show not only which rule is used for “Kinematics”, but also why it is valid here.

Theme A: Space, time and motion

Практика с ответами

Восемь заданий от базовых навыков до экзаменационного уровня. Сначала решите самостоятельно.

Базовый навык4 минут

A sample starts with 280 nuclei. How many are expected after three half-lives?

Подсказка

Halve three times.

Ответ

35.

Базовый навык5 минут

Structure a solution for “Forces”: givens, SI units, law, substitution, and interpretation.

Подсказка

State the law before substituting numbers.

Ответ

A full solution states symbols/units, selects a valid law for “Forces”, shows substitution and calculation, and interprets the result.

Применение6 минут

Identify three uncertainty sources in measuring “Momentum” and improve each one.

Подсказка

Consider instrument resolution, reaction time, repeats, and controls.

Ответ

A full response links each specific error source to a targeted improvement and identifies random or systematic impact.

Применение7 минут

Plan a suitable graph for “Work, energy and power” data and explain how to obtain a gradient or relationship.

Подсказка

Put the independent variable on x and dependent variable on y.

Ответ

A full response labels axes/units, uses a suitable scale and best fit; gradient uses a large triangle and is interpreted with units.

Обоснование8 минут

Check whether a result for “Rigid body mechanics in HL scope” is sensible using units, order of magnitude, and a limiting case.

Подсказка

A check should not merely repeat the same calculation.

Ответ

A full check confirms dimensions/units, compares expected magnitude, and tests behaviour when one variable becomes very small or large.

Обоснование9 минут

Connect “Relativity in HL scope where scheduled” to energy conservation or a force/field model and justify the choice.

Подсказка

Define the system and interactions.

Ответ

A full response defines the system, describes transfer or interaction, applies the appropriate model, and states losses or limitations.

Экзаменационный10 минут

Write a multi-step exam response about “Kinematics” with calculation and evaluation.

Подсказка

Separate givens, model, calculation, result, and evaluation.

Ответ

A full response includes an appropriate diagram/model, laws, algebraic rearrangement, SI substitution, suitably precise result, and evaluation of assumptions.

Экзаменационный12 минут

Compare two methods for investigating “Forces” and select the more reliable using criteria.

Подсказка

Use accuracy, repeatability, control, and safety.

Ответ

The choice must use at least three comparable criteria and acknowledge one trade-off or limitation.

Частые ошибки

  • Treating half-life as a linear decrease.
  • Confusing radiation with radioactive material.
  • Using a model without connecting it to experimental evidence.

Проверка понимания

  • ✓I connect a model with experimental evidence.
  • ✓I apply half-life or an energy relation correctly.
  • ✓I check conservation, units, and order of magnitude.

Theme A: Space, time and motion

Домашняя работа по главе

Шесть разных заданий от базового уровня до сложного с временем, подсказками и ответами.

Базовый8 минут

Homework 1: A sample starts with 144 nuclei. How many are expected after three half-lives?

Подсказка

Halve three times.

Ответ

18.

Базовый10 минут

Homework 2: Structure a solution for “Forces”: givens, SI units, law, substitution, and interpretation.

Подсказка

State the law before substituting numbers.

Ответ

A full solution states symbols/units, selects a valid law for “Forces”, shows substitution and calculation, and interprets the result.

Углубленный12 минут

Homework 3: Identify three uncertainty sources in measuring “Momentum” and improve each one.

Подсказка

Consider instrument resolution, reaction time, repeats, and controls.

Ответ

A full response links each specific error source to a targeted improvement and identifies random or systematic impact.

Углубленный15 минут

Homework 4: Plan a suitable graph for “Work, energy and power” data and explain how to obtain a gradient or relationship.

Подсказка

Put the independent variable on x and dependent variable on y.

Ответ

A full response labels axes/units, uses a suitable scale and best fit; gradient uses a large triangle and is interpreted with units.

Сложный18 минут

Homework 5: Check whether a result for “Rigid body mechanics in HL scope” is sensible using units, order of magnitude, and a limiting case.

Подсказка

A check should not merely repeat the same calculation.

Ответ

A full check confirms dimensions/units, compares expected magnitude, and tests behaviour when one variable becomes very small or large.

Сложный20 минут

Homework 6: Connect “Relativity in HL scope where scheduled” to energy conservation or a force/field model and justify the choice.

Подсказка

Define the system and interactions.

Ответ

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 по главе

Полный тест с таймером, баллами и образцами ответов.

Таймер теста

Готов к запуску

Осталось времени: 50:00

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 баллов
Ответ

48.

2. Structure a solution for “Forces”: givens, SI units, law, substitution, and interpretation.

3 баллов
Ответ

A full solution states symbols/units, selects a valid law for “Forces”, shows substitution and calculation, and interprets the result.

3. Identify three uncertainty sources in measuring “Momentum” and improve each one.

3 баллов
Ответ

A full response links each specific error source to a targeted improvement and identifies random or systematic impact.

4. Plan a suitable graph for “Work, energy and power” data and explain how to obtain a gradient or relationship.

4 баллов
Ответ

A 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 “Rigid body mechanics in HL scope” is sensible using units, order of magnitude, and a limiting case.

4 баллов
Ответ

A full check confirms dimensions/units, compares expected magnitude, and tests behaviour when one variable becomes very small or large.

6. Connect “Relativity in HL scope where scheduled” to energy conservation or a force/field model and justify the choice.

4 баллов
Ответ

A 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 “Kinematics” with calculation and evaluation.

5 баллов
Ответ

A 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 “Forces” and select the more reliable using criteria.

5 баллов
Ответ

The choice must use at least three comparable criteria and acknowledge one trade-off or limitation.

9. Create an extension question about “Momentum”, a prediction, and a data-collection plan.

5 баллов
Ответ

A 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 баллов
Ответ

28.

Раздел

Официальные источники

Источники программы; порядок тем уточняйте в школе и у преподавателя.

UK Department for Education - ScienceOfficial national curriculum progression and attainment guidance.International Baccalaureate - DP curriculumOfficial DP subject structure and current subject briefs.

Physics

IB Diploma DP1: структурированный маршрут по математике и физике с главами, практикой и следующими шагами.

Назад к предмету

Что покрывает глава

Структура следует учебнику и помогает организовать изучение темы.

Kinematics
Forces
Momentum
Work, energy and power
Rigid body mechanics in HL scope
Relativity in HL scope where scheduled

Где сфокусироваться

Темы, где чаще возникают ошибки или нужна дополнительная практика.

I connect a model with experimental evidence.
I apply half-life or an energy relation correctly.
I check conservation, units, and order of magnitude.

Источники, ежедневные материалы и ресурсы

С чего начать: учебник, daily material, PDFs, videos и 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 по подтемам

Целевая практика перед full tests, чтобы coverage было понятным.

A sample starts with 280 nuclei. How many are expected after three half-lives?
Structure a solution for “Forces”: givens, SI units, law, substitution, and interpretation.
Identify three uncertainty sources in measuring “Momentum” and improve each one.
Plan a suitable graph for “Work, energy and power” data and explain how to obtain a gradient or relationship.
Check whether a result for “Rigid body mechanics in HL scope” is sensible using units, order of magnitude, and a limiting case.
Connect “Relativity in HL scope where scheduled” to energy conservation or a force/field model and justify the choice.
Write a multi-step exam response about “Kinematics” with calculation and evaluation.
Compare two methods for investigating “Forces” and select the more reliable using criteria.

Mocks и проверка прогресса

Как измерять прогресс по главе и когда включать ее в общий 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.

Следующий шаг

Что делать после главы и как она связана со следующим разделом.

Complete the practice without support.
Explain the core method aloud in under two minutes.
Continue to the next chapter or request targeted tutor support.

Примечание: официальную экзаменационную программу каждого года всегда уточняйте в школе, у преподавателя и по текущим официальным источникам.

Глава 1 из 4

Следующая глава →Theme B: Particulate nature of matter
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