Khaemenes High · Physics & Engineering 12

Grade 12 · Week 15 · U4

Conservation of Momentum

Essential question: When is momentum conserved, and what system must be defined?

Standards: HS-PS2-280% mastery + correctionsPortfolio evidence

Open Monday Deep Lesson

Monday

Phenomenon / Launch

Two carts interact and total momentum remains nearly constant despite individual changes.

Learning target

Build an initial model and explanation for: When is momentum conserved, and what system must be defined?

Evidence task

Record observations, questions, an initial model, and one claim that could be tested. Use these concepts where relevant: system; internal force; external impulse; conservation.

Open Tuesday Deep Lesson

Tuesday

Concept & Model Revision

Study and explain the week's core ideas: system; internal force; external impulse; conservation

Reading

Open collision text.

Evidence task

Revise Monday's model. Add two evidence-backed annotations and explain one limitation or uncertainty.

Open Wednesday Deep Lesson

Wednesday

Data & Quantitative Reasoning

One-dimensional momentum calculations.

Evidence task

Show units, setup, calculation or graph reasoning, then write what the quantitative evidence can and cannot establish about: When is momentum conserved, and what system must be defined?

Open Thursday Deep Lesson

Thursday

Investigation / Engineering

Virtual cart collision or supervised low-energy carts.

Safety boundary

Use the course safety charter. If supervision, facilities, materials, or conditions are not appropriate, use the supplied-data/simulation alternative rather than improvising hazardous procedures.

Evidence task

Record variables or design constraints, procedure/model, observations/data, and one revision you would make after reviewing the evidence.

Open Friday Deep Lesson

Friday

CER / Synthesis

Answer the essential question: When is momentum conserved, and what system must be defined?

Mastery evidence

Submit a claim, at least two specific pieces of evidence, reasoning that connects them, one limitation/counterclaim, and a correction note for any essential concept below 80%.

Portfolio

Select one artifact from this week and explain why it is trustworthy evidence of growth.