Define the system
Choose the body or system, define a positive direction, and mark every force or motion quantity before writing an equation.
KS3 Year 9 / Physics / Curriculum
Space: structured theory, worked examples, answered practice, and a mastery checklist for KS3 Year 9.
Unit
The essential chapter ideas in a clear sequence before practice.
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.
Physics
Follow the method step by step and check why every step is valid.
Velocity changes from 2 m/s to 14 m/s in 6 s. Find the average acceleration.
Physics
Link each topic to equations, units, data handling, and required practical thinking.
The structure follows the official textbook layout and is used to organise study.
The areas that usually create mistakes or need extra revision.
a = 2 m/s²
Before calculating, explain the key idea from “Gravity and orbits” and which conditions must be checked.
The answer should show not only which rule is used for “Gravity and orbits”, but also why it is valid here.
Space
Try independently, use the hint if needed, then open the answer guide.
1. Explain the idea and give one correct foundation example for “Gravity and orbits”.
Write known quantities in SI units, draw a diagram where useful, and state the law before substitution.
A complete answer links “Gravity and orbits” to a physical law or model, correct units, and an interpretation.
2. Solve an application and show every intermediate step for “Stars and galaxies”.
Write known quantities in SI units, draw a diagram where useful, and state the law before substitution.
A complete answer links “Stars and galaxies” to a physical law or model, correct units, and an interpretation.
3. Compare a correct and an incorrect approach and justify the difference for “Solar system models”.
Write known quantities in SI units, draw a diagram where useful, and state the law before substitution.
A complete answer links “Solar system models” to a physical law or model, correct units, and an interpretation.
4. Create a short exam-style question and check your answer for “The universe introduction”.
Write known quantities in SI units, draw a diagram where useful, and state the law before substitution.
A complete answer links “The universe introduction” to a physical law or model, correct units, and an interpretation.
Where to start: textbook, daily material, PDFs, videos, and worked examples.
Targeted practice before full tests so coverage is clear.
How to measure progress in this chapter and when it enters a cumulative mock.
What to do after finishing the chapter and how it connects to the next unit.
Note: for the official examinable syllabus of each school year, always confirm with the school, tutor, and current Ministry/IEP announcements.