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AS 9702 · 3.1 · Dynamics · Lesson bundle

Momentum and impulse, force over time

Momentum and impulse, made lesson-ready: linear momentum p = m v, the second law as the rate of change of momentum, and impulse as the area under a force-time graph. Plan, worksheet with answers, slides, and a Round Table activity on impact time, built around the same-change-in-momentum-over-a-longer-time model and the site simulation Conservation of Momentum.

Syllabus
9702, 3.1
Level
AS
Duration
60 minutes
Activity
Round Table
Core visual
Longer time, smaller force
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Every part, two ways

Each part of the bundle opens right here on the site, projectable in any browser, and downloads as an editable file, never a locked PDF. Adapt them to your set, your timing and your school's calendar.

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Lesson plan

The 60-minute plan, with momentum p = m v, the second law in momentum form, impulse, the force-time graph, impact-time safety, three worked examples, examiner traps and differentiation.

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Worksheet and answers

Original AS questions across recall, momentum, force from a change in momentum, impulse from a graph and a safety application, with a full worked answer key.

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Slides

Your actual slides, presented right in the browser, with the live simulation linked beneath; the download is fully editable.

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21st century skills activity

A Round Table on impulse in everyday life with a group recording sheet and a teacher example bank, plus the PIES rationale and a facilitation guide, so it runs faithfully.

The matching topic page and simulation

Send learners to the lesson online

This bundle pairs with the student topic page Newton's laws and momentum, whose momentum section carries the interactive explanation, and with the site simulation Conservation of Momentum, which lets learners watch momentum before and after a collision and see the change in momentum directly.

Open the topic page   Open the simulation

How it is built

The same Δp, a different force

Most momentum errors come from dropping the vector nature of it, or from thinking a longer impact means a bigger force. The lesson holds a sign convention through every rebound and uses the longer-time-smaller-force model so impulse feels concrete, not algebraic.

The Round Table then has every learner add one everyday example of impact time at work, in turn, building a shared bank that the group sorts into reduce-the-force and increase-the-force. It ships with the recording sheet and a teacher example bank, so it can be run faithfully.

Original work by the TheLucidSTEM team. Questions are written in the style of the papers; no past paper question is reproduced. Supplied in editable formats so you can adapt them freely.
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