IP Physics Notes (Upper Secondary, Year 3-4): 3) Forces
29 Sep 2025, 00:00 Z· Last updated 30 Nov 2025
Want small-group support? Browse our IP Physics Tuition hub. Not sure which level to start with? Visit Physics Tuition Singapore.
Practical course certificate note
For practical, lab, and experiment courses, Eclat Institute may issue an internal Certificate of Completion/Attendance based on participation and internal assessment.
- This is an internal centre-issued certificate, not an MOE/SEAB qualification or accreditation.
- Recognition (if any) is determined by the receiving school, institution, or employer.
- For SEAB private candidates taking science practical papers, SEAB states you should either have taken the subject before or complete a practical course before the practical exam date.
View our sample certificate template (Current sample layout (design may be refined over time))
Planning a revision session? Use our study places near me map to find libraries, community study rooms, and late-night spots.
Q: What does IP Physics Notes (Upper Secondary, Year 3-4): 3) Forces cover?
A: Distinguish mass from weight, handle friction and upthrust, draw clean free-body diagrams, and apply Newton's laws with vector resolution.
Quick recap -- Treat force as a vector, link weight to gravitational field strength, capture all pushes/pulls in a free-body diagram, and let Newton's laws plus vector resolution tell you whether motion changes.
Keep your practice loop tight via our IP Physics tuition hub-it links each topic here to quizzes, diagnostics, and WA-style problem sets.
New to the Integrated Programme? Start with What is IP? | Browse all free IP notes.
These notes align with SEAB GCE O-Level Physics (6091) content used in IP programmes (exams from 2026).
Status: SEAB O-Level Physics 6091 syllabus (exams from 2026) checked 2025-11-30 - scope unchanged; remains the reference for these notes.
Force Fundamentals
- A force is a push or pull arising from interaction between bodies. It can change an object's speed, direction, or shape.
- Forces are vectors: they need both magnitude and direction. The SI unit is the newton .
- Typical families you must recognise: weight (gravity), normal contact, friction, tension, upthrust, and applied pulls/pushes.
Mass, Weight & Gravitational Fields
- Mass measures the amount of matter and inertia an object has. It stays constant wherever you go.
- Weight is the gravitational force on that mass. Close to Earth,
