Greek Lyceum Grade 3 / Physics / Curriculum
Κρούσεις και ορμή: structured theory, worked examples, answered practice, and a mastery checklist for Greek Lyceum Grade 3.
Раздел
Ключевые идеи главы в понятной последовательности перед практикой.
Define the system and identify how energy or momentum is transferred. Conservation applies to the correct system and time interval.
Write initial and final quantities before substituting numbers. This exposes losses, external work, and direction.
Energy describes an amount, while power describes its transfer rate. Do not compare systems using work alone when time matters.
For “Ελαστική κρούση”, 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 “Πλαστική κρούση”, 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 “Κεντρικές κρούσεις”, 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 “Σχετική κίνηση”, 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 “Διατήρηση ορμής”, 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.
In a safe test about “Ελαστική κρούση”, the first condition gives 12 units and the second 9. Which is greater, and what should be kept the same?
The first value is greater by 3 units. A fair test changes only one factor.
Explain “Ελαστική κρούση” in your own words and use a picture, objects, a table, or a simple measurement to support it.
A complete explanation connects the correct idea, a clear representation, and a sensible check.
Κρούσεις και ορμή
Восемь заданий от базовых навыков до экзаменационного уровня. Сначала решите самостоятельно.
Record 7 safe observations about “Ελαστική κρούση” without writing a conclusion yet.
An observation is something seen, heard, or measured.
The response needs 7 specific observable or measurable statements, not guesses about cause.
Design a fair test for “Πλαστική κρούση”: what changes, what is measured, and which 6 things stay the same?
Change one factor only.
Full response: one changed factor, one measurable outcome, and 6 controlled conditions.
Measurements are 6, 3, and 9 units. Put them in a table, find the greatest, and the difference from the least.
Use condition and measurement headings.
Greatest 9, least 3, difference 6 units.
Sort examples of “Σχετική κίνηση” into two groups and state the sorting rule.
Each item should clearly match one group.
A full response gives two named groups, at least two examples in each, and an observable sorting rule.
Choose a suitable tool and unit to measure something connected with “Διατήρηση ορμής”.
Decide whether you measure length, time, mass, temperature, or volume.
The quantity, instrument, and unit must match, e.g. time-stopwatch-s or length-ruler-cm.
From data 8, 12, 16, predict the next value and explain the pattern.
Look for the constant change +4.
20; +4.
Write 6 safety rules for a simple activity about “Ελαστική κρούση” and explain the risk each reduces.
Link each rule to a reason.
A full response gives 6 specific rules, each linked to a risk, and requires supervision where appropriate.
Data A=7 and B=10. Write a conclusion, evidence, and one limitation about “Πλαστική κρούση”.
Do not claim more than the two values show.
B is 3 greater than A. The values support this, but two measurements alone do not prove a general rule.
Κρούσεις και ορμή
Шесть разных заданий от базового уровня до сложного с временем, подсказками и ответами.
Homework 1: Record 3 safe observations about “Ελαστική κρούση” without writing a conclusion yet.
An observation is something seen, heard, or measured.
The response needs 3 specific observable or measurable statements, not guesses about cause.
Homework 2: Design a fair test for “Πλαστική κρούση”: what changes, what is measured, and which 2 things stay the same?
Change one factor only.
Full response: one changed factor, one measurable outcome, and 2 controlled conditions.
Homework 3: Measurements are 9, 4, and 13 units. Put them in a table, find the greatest, and the difference from the least.
Use condition and measurement headings.
Greatest 13, least 4, difference 9 units.
Homework 4: Sort examples of “Σχετική κίνηση” into two groups and state the sorting rule.
Each item should clearly match one group.
A full response gives two named groups, at least two examples in each, and an observable sorting rule.
Homework 5: Choose a suitable tool and unit to measure something connected with “Διατήρηση ορμής”.
Decide whether you measure length, time, mass, temperature, or volume.
The quantity, instrument, and unit must match, e.g. time-stopwatch-s or length-ruler-cm.
Homework 6: From data 4, 9, 14, predict the next value and explain the pattern.
Look for the constant change +5.
19; +5.
35 минут / 30 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. Record 8 safe observations about “Ελαστική κρούση” without writing a conclusion yet.
2 балловThe response needs 8 specific observable or measurable statements, not guesses about cause.
2. Design a fair test for “Πλαστική κρούση”: what changes, what is measured, and which 2 things stay the same?
3 балловFull response: one changed factor, one measurable outcome, and 2 controlled conditions.
3. Measurements are 7, 4, and 11 units. Put them in a table, find the greatest, and the difference from the least.
3 балловGreatest 11, least 4, difference 7 units.
4. Sort examples of “Σχετική κίνηση” into two groups and state the sorting rule.
4 балловA 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 “Διατήρηση ορμής”.
4 балловThe quantity, instrument, and unit must match, e.g. time-stopwatch-s or length-ruler-cm.
6. From data 9, 14, 19, predict the next value and explain the pattern.
4 баллов24; +5.
7. Write 2 safety rules for a simple activity about “Ελαστική κρούση” and explain the risk each reduces.
5 балловA full response gives 2 specific rules, each linked to a risk, and requires supervision where appropriate.
8. Data A=8 and B=12. Write a conclusion, evidence, and one limitation about “Πλαστική κρούση”.
5 балловB is 4 greater than A. The values support this, but two measurements alone do not prove a general rule.
Раздел
Источники программы; порядок тем уточняйте в школе и у преподавателя.
Physics
Greek Lyceum Grade 3: 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.
