KS3 Year 7 / Physics / Curriculum
Forces and motion: structured theory, worked examples, answered practice, and a mastery checklist for KS3 Year 7.
Розділ
Ключові ідеї глави у зрозумілій послідовності перед практикою.
Choose the body or system, define a positive direction, and mark every force or motion quantity before writing an equation.
A free-body or motion diagram comes before the law. Use resultant force to connect interaction and acceleration.
Vector quantities depend on direction. Keep signs consistent and check that the final unit matches the requested quantity.
For “Contact and non-contact 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.
For “Weight and mass”, 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 “Friction”, 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 “Air resistance”, 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 “Balanced and unbalanced 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.
Physics
Дотримуйтесь методу крок за кроком і перевіряйте обґрунтування.
Velocity changes from 5 m/s to 13 m/s in 4 s. Find the average acceleration.
a = 2 m/s²
Before calculating, explain the key idea from “Contact and non-contact forces” and which conditions must be checked.
The answer should show not only which rule is used for “Contact and non-contact forces”, but also why it is valid here.
Forces and motion
Вісім завдань від базових навичок до екзаменаційного рівня. Спочатку виконайте самостійно.
An object travels 90 m in 6 s. Find average speed.
v=s/t.
v = 15.0 m/s.
A 6 kg mass accelerates at 5 m/s². Find resultant force.
F=ma.
F=30 N.
Structure a solution for “Friction”: givens, SI units, law, substitution, and interpretation.
State the law before substituting numbers.
A full solution states symbols/units, selects a valid law for “Friction”, shows substitution and calculation, and interprets the result.
Identify three uncertainty sources in measuring “Air resistance” 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 “Balanced and unbalanced forces” 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 “Distance and time” 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 “Speed = distance / time” 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 “Simple distance-time graphs” 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.
Forces and motion
Шість різних завдань від базового рівня до складного з часом, підказками та відповідями.
Homework 1: An object travels 240 m in 8 s. Find average speed.
v=s/t.
v = 30.0 m/s.
Homework 2: A 9 kg mass accelerates at 6 m/s². Find resultant force.
F=ma.
F=54 N.
Homework 3: Structure a solution for “Friction”: givens, SI units, law, substitution, and interpretation.
State the law before substituting numbers.
A full solution states symbols/units, selects a valid law for “Friction”, shows substitution and calculation, and interprets the result.
Homework 4: Identify three uncertainty sources in measuring “Air resistance” 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 5: Plan a suitable graph for “Balanced and unbalanced forces” 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 6: Check whether a result for “Distance and time” 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.
50 хвилин / 40 балів
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. An object travels 160 m in 8 s. Find average speed.
2 балівv = 20.0 m/s.
2. A 7 kg mass accelerates at 6 m/s². Find resultant force.
3 балівF=42 N.
3. Structure a solution for “Friction”: givens, SI units, law, substitution, and interpretation.
3 балівA full solution states symbols/units, selects a valid law for “Friction”, shows substitution and calculation, and interprets the result.
4. Identify three uncertainty sources in measuring “Air resistance” and improve each one.
4 балівA full response links each specific error source to a targeted improvement and identifies random or systematic impact.
5. Plan a suitable graph for “Balanced and unbalanced forces” data and explain how to obtain a gradient or relationship.
4 балівA full response labels axes/units, uses a suitable scale and best fit; gradient uses a large triangle and is interpreted with units.
6. Check whether a result for “Distance and time” is sensible using units, order of magnitude, and a limiting case.
4 балівA full check confirms dimensions/units, compares expected magnitude, and tests behaviour when one variable becomes very small or large.
7. Connect “Speed = distance / time” to energy conservation or a force/field model and justify the choice.
5 балівA full response defines the system, describes transfer or interaction, applies the appropriate model, and states losses or limitations.
8. Write a multi-step exam response about “Simple distance-time graphs” with calculation and evaluation.
5 балівA full response includes an appropriate diagram/model, laws, algebraic rearrangement, SI substitution, suitably precise result, and evaluation of assumptions.
9. Compare two methods for investigating “Contact and non-contact forces” and select the more reliable using criteria.
5 балівThe choice must use at least three comparable criteria and acknowledge one trade-off or limitation.
10. Create an extension question about “Weight and mass”, a prediction, and a data-collection plan.
5 балівA full response gives a testable question, justified prediction, independent-variable range, repeats, and an analysis method.
Розділ
Джерела програми; порядок тем уточнюйте у школі та викладача.
Physics
KS3 Year 7: структурований маршрут з математики та фізики з розділами, практикою і наступними кроками.
Структура відповідає підручнику й допомагає організувати вивчення теми.
Теми, де найчастіше виникають помилки або потрібна додаткова практика.
З чого почати: підручник, daily material, PDFs, videos і worked examples.
Цільова практика перед full tests, щоб coverage було зрозумілим.
Як вимірювати прогрес у главі і коли додавати її до загального mock.
Що робити після глави і як вона пов'язана з наступним розділом.
Примітка: офіційну екзаменаційну програму кожного року завжди уточнюйте у школі, викладача та за поточними офіційними джерелами.
