Space physics

Scope and route

Shared: Physics and Trilogy, both tiers unless a Higher branch is named.
Separate Physics: Outside the Trilogy physics requirements.
Higher: Higher-only objectives, examples or assessments are labelled.
Ratings: Difficulty 1–4 and duration are proposed design choices; mastery means independently meeting exit criteria.

Area page →

SP-U1 · Solar system and orbits

Unit page →

SP-01 · SP-U1 · Planned

Solar system and cosmic scale

ScopeSeparate Physics
Difficulty2 / 4 · proposed
Time25–30 min · estimated
StatusPlanned

Learning objectives

Distinguish star, planet, dwarf planet, moon and artificial satellite; locate solar system within Milky Way.

8463 §§4.8.1.1,4.8.1.3 / No Trilogy counterpart

DfE single-science pp.44–45 · no Combined Space section. Evidence checked 30 September–1 October 2026. Skills: WS1.2,4.4; MS1b,2h,5b.

Needs firstFM-02,AT-09

Explanation

The solar system contains the Sun and bodies bound in its gravitational system, including planets, dwarf planets and satellites. It is a small part of the Milky Way. Navigable game models cannot simultaneously preserve realistic size and distance scales without carefully labelled separate views.

Concepts, equations and units: Sun, eight planets, dwarf planets, natural satellites; scale distances in m and standard form; no orbital-period equation required.

Prediction, demonstration and game exercise

Predict, observe, explain

Show nested scale views and flag all compressed distances/oversized planet depictions.

Planned learner game exercise

Place object/category cards and navigate a scale slider; compare orders of magnitude from supplied data.

Independent practice

Classify six objects and calculate two scale ratios; distinguish scale model from navigable scene.

Original practice example · Separate Physics

Is the Moon a planet, a natural satellite, an artificial satellite or a star?

Show working and model answer

Working / reasoning

It orbits Earth and was not built by humans.

Answer

A natural satellite.

Exit check and success criteria

Five classifications and one ratio correct; hierarchy system→galaxy clear.

During practice, compare the prediction with evidence and give an error-specific prompt. The exit item uses a fresh context or fresh values, answered independently.

Misconceptions, practical links and mastery

Check these misconceptions

Solar system equals galaxy; every orbiting object is a planet; rendered distance is physical astronomical distance.

Practical preparation

No RP; observational/model data.

Virtual preparation and revision only. Required hands-on activities and school records remain separate.

Proposed mastery

0: not yet evidenced. 1: supported. 2: independent exit criteria met. 3: successful changed-context transfer. Advance at 2; revisit with fresh retrieval. These are not GCSE grades.

Full lecture page →

SP-02 · SP-U1 · Planned

Gravity and stable orbits

ScopeSeparate Physics + Separate Physics Higher explanations
Difficulty3 / 4 · proposed
Time30–35 min · estimated
StatusPlanned

Learning objectives

Describe gravity-maintained planetary/satellite orbits; H explain changing velocity at constant speed and radius change for a different stable speed.

8463 §§4.8.1.3 / No Trilogy counterpart

DfE single-science pp.44–45 · no Combined Space section. Evidence checked 30 September–1 October 2026. Skills: WS1.2,3.6; MS5b.

Needs firstSP-01,FM-07,FM-11

Explanation

In the circular-orbit approximation, gravity supplies inward force while instantaneous velocity is tangent to the orbit. Higher explanations separate unchanged speed from changing velocity direction and require radius change for a different stable orbital speed in the same system.

Concepts, equations and units: Gravitational force directed inward; circular orbit approximation; H constant speed/changing direction; no centripetal-force/orbital-speed formula requirement.

Prediction, demonstration and game exercise

Predict, observe, explain

Freeze orbit positions and annotate inward force and tangential velocity; H compare two consistent stable orbits.

Planned learner game exercise

Predict motion if inward force removed; H choose model radius consistent with a supplied changed stable speed.

Independent practice

Annotated orbit explanation; H compare radius/speed cases qualitatively using model evidence.

Original practice example · Separate Physics Higher

A satellite moves at constant speed in a circular orbit. Is its velocity constant?

Show working and model answer

Working / reasoning

Its direction changes continuously even when speed stays fixed.

Answer

No; velocity changes direction, requiring inward acceleration/force.

Exit check and success criteria

Force points toward centre, velocity tangent; H changing direction and stable-radius condition correct.

During practice, compare the prediction with evidence and give an error-specific prompt. The exit item uses a fresh context or fresh values, answered independently.

Misconceptions, practical links and mastery

Check these misconceptions

Gravity absent in orbit; inward force points along velocity; any chosen speed remains stable at fixed radius.

Practical preparation

No RP; analytical orbit model required, not Roblox engine default.

Virtual preparation and revision only. Required hands-on activities and school records remain separate.

Proposed mastery

0: not yet evidenced. 1: supported. 2: independent exit criteria met. 3: successful changed-context transfer. Advance at 2; revisit with fresh retrieval. These are not GCSE grades.

Full lecture page →

SP-U2 · Stars and elements

Unit page →

SP-03 · SP-U2 · Planned

Star formation and life cycles

ScopeSeparate Physics
Difficulty3 / 4 · proposed
Time30–35 min · estimated
StatusPlanned

Learning objectives

Explain gravitational formation and main-sequence balance; sequence Sun-like and much more massive star life cycles.

8463 §§4.8.1.1–4.8.1.2 / No Trilogy counterpart

DfE single-science pp.44–45 · no Combined Space section. Evidence checked 30 September–1 October 2026. Skills: WS1.2,3.6; MS2h.

Needs firstAT-09,SP-01

Explanation

Stars form when gravity draws gas and dust together, allowing conditions for fusion. During the main sequence, outward pressure sustained by fusion balances gravitational collapse. Later evolution depends on mass: Sun-like and much more massive stars do not have the same final outcomes.

Concepts, equations and units: Nebula→protostar→main sequence; Sun-like red giant→white dwarf→black dwarf theoretical future stage; massive red supergiant→supernova→neutron star/black hole.

Prediction, demonstration and game exercise

Predict, observe, explain

Compare two labelled timelines with time-scale disclaimers; explain gravity inward balanced by outward pressure sustained by fusion.

Planned learner game exercise

Choose stellar mass branch and order stages; repair a model falsely showing Sun as supernova.

Independent practice

Two life-cycle diagrams and a main-sequence stability explanation.

Original practice example · Separate Physics

Does a Sun-like star follow the red-supergiant → supernova → black-hole route in this GCSE model?

Show working and model answer

Working / reasoning

That is a much more massive-star branch. The Sun-like branch goes through red giant and white dwarf.

Answer

No; a Sun-like star becomes a red giant then white dwarf in the mapped model.

Exit check and success criteria

Both branches correct and equilibrium linked to fusion-supported pressure; black dwarfs labelled not observed within current cosmic age.

During practice, compare the prediction with evidence and give an error-specific prompt. The exit item uses a fresh context or fresh values, answered independently.

Misconceptions, practical links and mastery

Check these misconceptions

Every star ends as black hole; Sun will explode as supernova; star stages happen over game-time seconds.

Practical preparation

No RP; observational/model evidence.

Virtual preparation and revision only. Required hands-on activities and school records remain separate.

Proposed mastery

0: not yet evidenced. 1: supported. 2: independent exit criteria met. 3: successful changed-context transfer. Advance at 2; revisit with fresh retrieval. These are not GCSE grades.

Full lecture page →

SP-04 · SP-U2 · Planned

Elements from stars

ScopeSeparate Physics
Difficulty3 / 4 · proposed
Time25–30 min · estimated
StatusPlanned

Learning objectives

Explain formation/dispersal of elements through stellar processes at GCSE level; distinguish a syllabus model from modern refinements.

8463 §§4.8.1.2 / No Trilogy counterpart

DfE single-science pp.44–45 · no Combined Space section. Evidence checked 30 September–1 October 2026. Skills: WS1.2,1.3,3.6.

Needs firstSP-03,AT-09

Explanation

Stellar nuclear processes change elemental identities and enrich later material. AQA’s simplified account links supernovae with heavy-element production and dispersal. Modern observations also show heavy elements from neutron-star mergers, so the GCSE diagram must not claim a complete account of every element’s origin.

Concepts, equations and units: Fusion builds heavier nuclei; AQA model links elements heavier than iron to supernovae; enrichment and dispersal; no quantitative nucleosynthesis.

Prediction, demonstration and game exercise

Predict, observe, explain

Trace labelled nuclei through a simplified massive-star history; state that the full astrophysics includes other formation sites/processes.

Planned learner game exercise

Assemble an evidence-based origin/dispersal narrative for material forming later stars and planets.

Independent practice

Explain new element formation and supernova dispersal in four ordered statements.

Original practice example · Separate Physics

Why does supernova dispersal matter for later planets and stars?

Show working and model answer

Working / reasoning

It spreads enriched material into the surrounding medium, which can become part of later systems.

Answer

It supplies dispersed enriched material for later systems; this is not the only heavy-element formation channel.

Exit check and success criteria

Fusion changes nuclear identity, heavy-element/dispersal account matches GCSE model, and limitation is explicit.

During practice, compare the prediction with evidence and give an error-specific prompt. The exit item uses a fresh context or fresh values, answered independently.

Misconceptions, practical links and mastery

Check these misconceptions

All elements form by ordinary combustion; every naturally occurring element formed by fusion in a present-day Sun-like star.

Practical preparation

No RP; models and supplied astronomical evidence.

Virtual preparation and revision only. Required hands-on activities and school records remain separate.

Proposed mastery

0: not yet evidenced. 1: supported. 2: independent exit criteria met. 3: successful changed-context transfer. Advance at 2; revisit with fresh retrieval. These are not GCSE grades.

Full lecture page →

SP-U3 · Expanding universe

Unit page →

SP-05 · SP-U3 · Planned

Red-shift, expansion and evidence limits

ScopeSeparate Physics
Difficulty3 / 4 · proposed
Time35–40 min · estimated
StatusPlanned

Learning objectives

Explain wavelength red-shift and distance/recession evidence; relate it to Big Bang model; acknowledge dark matter/energy and observational uncertainty.

8463 §§4.8.2 / No Trilogy counterpart

DfE single-science pp.44–45 · no Combined Space section. Evidence checked 30 September–1 October 2026. Skills: WS1.1–1.3,1.6,3.5,3.7; MS2g,4a.

Needs firstWA-08,SP-01,SP-03

Explanation

Red-shift means spectral features are observed at longer wavelengths. The relation between galaxy distance and recession supports expansion and the hot dense early-universe model. Dark matter and dark energy describe different unresolved issues; evidence-led uncertainty is part of science, not proof that nothing is known.

Concepts, equations and units: Red-shift means longer observed wavelength; expansion from hot dense early state; qualitative recession–distance relation, no Hubble-law formula required.

Prediction, demonstration and game exercise

Predict, observe, explain

Compare emitted/observed line spectra and a distance–red-shift scatter plot; separate observations from interpretations.

Planned learner game exercise

Match shifted spectral lines, order galaxies by recession evidence and write a model-evaluation memo.

Independent practice

Interpret three spectra/graph cases; critique one unsupported claim and distinguish dark matter from dark energy.

Original practice example · Separate Physics

A spectral line emitted at 500 nm is observed from a distant galaxy at 550 nm. Is it red-shifted or blue-shifted?

Show working and model answer

Working / reasoning

Observed wavelength is greater: 550 > 500 nm.

Answer

Red-shifted; the example alone is not a complete proof of every cosmological model detail.

Exit check and success criteria

Two spectral comparisons correct plus a supported expansion argument and a substantive unresolved question.

During practice, compare the prediction with evidence and give an error-specific prompt. The exit item uses a fresh context or fresh values, answered independently.

Misconceptions, practical links and mastery

Check these misconceptions

Red-shift means galaxies are red coloured; Big Bang was an explosion into pre-existing empty space; uncertainty invalidates every observation.

Practical preparation

No RP; supplied astronomical datasets.

Virtual preparation and revision only. Required hands-on activities and school records remain separate.

Proposed mastery

0: not yet evidenced. 1: supported. 2: independent exit criteria met. 3: successful changed-context transfer. Advance at 2; revisit with fresh retrieval. These are not GCSE grades.

Full lecture page →

Sources and full programme

Sources checked 30 September–1 October 2026. Specifications govern content; textbooks supplement it. England has no single prescribed Physics course book. The full planning document includes sourced comparisons of Collins separate Physics and Trilogy books, Hodder/Hachette Physics and Oxford Physics listings, with access/approval limitations.

Download the complete Markdown programme and coverage matrix

A subsection map is proposed coverage. Clause-level educator review, item moderation, model validation and hands-on provision remain release gates. No all-board alignment or exam-board endorsement is claimed.