H1 Physics 8867 · Topic 6
Collisions
A reviewed 8867 repair guide for Collisions.
Before you begin
Use the diagnostic first. Complete the assigned explanation, worked transfer, guided practice and independent practice in order before the assessment and delayed re-test.
How the ideas connect
- Impulse and force–time area
- Momentum conservation and elastic interactions
- Kinetic-energy change in collisions
Learn in order
Lesson route
Objective clusters
- 01Impulse and force–time areaImpulse is the signed area under the force–time graph and equals the momentum change.
- 02Momentum conservation and elastic interactionsMomentum is conserved for a closed system; kinetic energy and relative-speed conditions distinguish a perfectly elastic interaction.
- 03Kinetic-energy change in collisionsThe system momentum can stay constant while kinetic energy transfers to deformation, internal energy or sound.
Prove your understanding
Practice and repair
Key ideas and reference
Use these Collisions checkpoints to choose the objective cluster that needs attention.
- A reviewed 8867 repair guide for Collisions.
- Impulse is the signed area under the force–time graph and equals the momentum change.
- Momentum is conserved for a closed system; kinetic energy and relative-speed conditions distinguish a perfectly elastic interaction.
- The system momentum can stay constant while kinetic energy transfers to deformation, internal energy or sound.
Course coverage and review details
Restricted to 8867 topic 6(a)–(e), PDF page 14; H2-only depth and omitted H2 topics do not contribute to this profile.
Recorded selected-response work supports formative repair. It does not by itself prove constructed, diagrammatic or practical performance.
Reviewed 2026-08-01