Energy
The capacity to do work; it can be transformed between forms but not created or destroyed.
At a glance
Key signals
20% cross fields · reaches 12 more
- Physics
- Explanation
- Examples
- Misconception
- Sourced relations 9
- Attribution
Dependencies
What this concept builds on and what it makes possible — derived from the atlas’s dependency, causal and structural relations, not from every related edge.
Foundations · builds on
Nuclear fusioncausesEnergyEstablished
nuclear fusion causes Energy.
Mechanism: Fusing light nuclei releases enormous energy — the process that powers the Sun.
- University Physics (OpenStax) verifiedmoderate evidence
Enables · leads to
Energy transferrequiresEnergyEstablished
Energy transfer moves energy between forms and places.
Mechanism: Energy transfer moves energy from one place or form to another; it is the process by which energy does anything useful.
- University Physics (OpenStax) verifiedmoderate evidence
System context
Dark energyis aEnergyEstablished
dark energy is a kind of Energy.
Mechanism: Dark energy is a form of energy filling empty space that acts as a repulsive push, driving the expansion of the universe to accelerate.
- Wikidata verifiedmoderate evidence
Heatis aEnergyEstablished
heat is a kind of Energy.
Mechanism: Heat is energy in transit: it is the energy that flows from a hotter body to a cooler one because of their temperature difference.
- Wikidata verifiedmoderate evidence
Kinetic energyis aEnergyEstablished
Kinetic energy is a form of energy.
Mechanism: Kinetic energy is the energy of motion: any moving mass carries it, growing with the square of its speed.
- University Physics (OpenStax) verifiedmoderate evidence
Light (sunlight)is aEnergyEstablished
Light is a form of energy.
Mechanism: Light is electromagnetic radiation that carries energy which can be transferred to matter.
Potential energyis aEnergyEstablished
Potential energy is a form of energy.
Mechanism: Potential energy is stored energy of position: it is the energy a system holds by virtue of where it sits in a force field, ready to be released.
- University Physics (OpenStax) verifiedmoderate evidence
Structural role & consequence
Interpreted from the current atlas graph — what the connections mean, not just how many there are.
Removing this node lengthens the structural route between Dark energy and Renewable energy from 2 to 11 steps (they stay connected — alternative routes exist).
structural · Structural removal simulation — not a historical or causal counterfactual.
Currently dark in the atlas: no verified source · no key date stored · 10 of 10 of its relations lack claim-level evidence.
atlas representation · Describes the current Thinking OS representation, not the state of the world.
Builds on 1 foundation (requires / depends-on / derived-from / emerges-from).
structural · Structural graph analysis — not a claim of importance, causation or history.
Exercises 2 annotated mental models — a concept that connects several thinking patterns.
curated · Curated annotations, not a derived measure.
cross-field
8 within-field, 2 cross-field
Strengths & constraints
Constraints
- Evidence coverage currently thin in the atlas — few of its relationships carry claim-level evidence. atlas representation
- No dated history stored — the atlas records no key date for this concept. atlas representation
Conditions
- Its dependency reading rests on 1 foundation relation. structural
- Read structurally — most of its relationships carry no external evidence yet, so claims here are graph-derived. structural
Dependency radial
What this concept builds on (left) and what it makes possible (right) — derived from dependency and causal relations.
What builds on this
1 concept build on this directly, 1 in total, across 5 disciplines.
Structural downstream reach along dependency edges — not a claim of historical necessity.
Seen through each discipline
How this concept sits in each of its fields — derived from its real connections in the graph, not asserted.
Through this lens it connects to Light (sunlight), Energy transfer, Nuclear fusion and Heat.
Where you'll meet it
Journeys that walk you through this idea. You may recognise it from more than one.
Related ideas to explore
Concepts that look related but are not yet connected here — candidates for a connection to reason about, not established links.
This idea also appears in…
The same structure shows up in other disciplines. These are real recurrences drawn from the graph — a starting point for asking “what carries over, and what changes?”
Energy transformation36 disciplines · 51 concepts
Stocks and flows42 disciplines · 36 concepts
Concepts
shares a mental model · shares a mental model
shares a mental model · shares a mental model
shares a mental model · shares a mental model
shares a mental model
shares a mental model
shares a mental model · crosses a discipline boundary
Curriculum alignment
Austria · AHS Unterstufe (Sekundarstufe I) · Biologie und Umweltbildung
Appears in official curriculum objectives
Understand the role of oxygen in using nutrients as energy carriers. · 3. Klasse (7. Schulstufe)
Exact wording: „Tracheen, Kiemen und Lungen als Atmungsorgane, Bedeutung des Sauerstoffs bei der Nutzung von Nährstoffen als Energieträger“
How this official objective connects, through canonical knowledge, to what a learner actually does — each link is real data, never a coverage claim.
Canonical concept
- How each concept relates to the objective
- named — The objective's own wording names this concept.
- required — You must grasp this concept to meet the objective.
Relations & mental models
1 canonical relations connect these concepts
- Cellular respiration requires Oxygen (O₂)
Mental models these concepts carry: Energy transformation ×2Stocks and flowsActivity → Observable evidence
No pilot activity yet engages these concepts directly.
The curriculum does not name “cellular respiration” verbatim; the O₂-dependent use of nutrients as energy carriers is its physiological core.
Provenance
- Authority
- BMBWF
- Document
- BGBl. II Nr. 1/2023
- Section
- Anlage A zu Art. 4 · Biologie und Umweltbildung · Anwendungsbereiche, 3. Klasse (S. 113)
- Version
- Stammfassung, Kundmachung 2. Jänner 2023
- School type
- AHS Unterstufe (Sekundarstufe I)
- Subject
- Biologie und Umweltbildung
- Stage
- lower-secondary
- Accessed
- 2026-09-17
✓ Source verified
Understand that materials and energy carriers largely move through closed cycles in ecological systems, and that human activity can alter these cycles. · 1.–4. Klasse (zentrales fachliches Konzept)
Exact wording: „Lebewesen sind an Stoff- und Energieumwandlung gebunden. Organische Verbindungen werden vorwiegend von Pflanzen aufgebaut. In ökologischen Systemen durchlaufen Baustoffe und Energieträger vorwiegend geschlossene Kreisläufe. Menschliche Aktivitäten können solche Kreisläufe verändern.“
How this official objective connects, through canonical knowledge, to what a learner actually does — each link is real data, never a coverage claim.
Canonical concept
- How each concept relates to the objective
- named — The objective's own wording names this concept.
- required — You must grasp this concept to meet the objective.
- supports — Helps meet the objective, but is not strictly required.
Relations & mental models
2 canonical relations connect these concepts
- Photosynthesis is part of Carbon cycle
- Producer (autotroph) depends on Photosynthesis
Mental models these concepts carry: Stocks and flows ×3Energy transformation ×2ConservationFeedback loopNetworksJourney
Journeys that walk concepts relevant to this objective
Activity → Observable evidence
4 activities engage these concepts
identified a missing linkpredicted an effectpredicted a relationshippredicted a what-if outcomeWhat those activities are designed to make observable — designed intent, not proof of learning.
Provenance
- Authority
- BMBWF
- Document
- BGBl. II Nr. 1/2023
- Section
- Anlage A zu Art. 4 · Biologie und Umweltbildung · Zentrale fachliche Konzepte, „Stoff- und Energieumwandlung“ (S. 111)
- Version
- Stammfassung, Kundmachung 2. Jänner 2023
- School type
- AHS Unterstufe (Sekundarstufe I)
- Subject
- Biologie und Umweltbildung
- Stage
- lower-secondary
- Accessed
- 2026-09-17
✓ Source verified
Analyse ecosystems with their material and energy cycles, environmental factors and succession. · 6. Klasse · 4. Semester (Kompetenzmodul 4)
Exact wording: „Ökosysteme (Stoff- und Energiekreisläufe, Umweltfaktoren, Sukzession, Konvergenzerscheinungen)“
How this official objective connects, through canonical knowledge, to what a learner actually does — each link is real data, never a coverage claim.
Canonical concept
- How each concept relates to the objective
- named — The objective's own wording names this concept.
- supports — Helps meet the objective, but is not strictly required.
Relations & mental models
1 canonical relations connect these concepts
- Food chain depends on Producer (autotroph)
Mental models these concepts carry: Energy transformation ×2Networks ×2Stocks and flows ×2ConservationFeedback loopActivity → Observable evidence
1 activities engage these concepts
predicted a what-if outcomeWhat those activities are designed to make observable — designed intent, not proof of learning.
Provenance
- Authority
- BMBWF
- Document
- Lehrpläne AHS (RIS Gesetzesnummer 10008568, Stammfassung BGBl. Nr. 88/1985)
- Section
- Anlage A · Biologie und Umweltbildung · Oberstufe, 6. Klasse, Kompetenzmodul 4
- Version
- Bundesrecht konsolidiert, Fassung vom 2026-09-17 (zuletzt geändert BGBl. II Nr. 204/2024); Anlage A in Kraft aufsteigend ab 5. Kl. 2024
- School type
- AHS Oberstufe
- Subject
- Biologie und Umweltbildung
- Stage
- upper-secondary
- Accessed
- 2026-09-17
✓ Source verified
Understand energy, energy conservation, entropy and the laws of thermodynamics, and sustainable use of energy. · 5. Klasse (1. und 2. Semester)
Exact wording: „Thermodynamik: Energie, Energieerhaltung, Teilchenmodell, Entropie, thermodynamische Hauptsätze, nachhaltiger Umgang mit Energie“
How this official objective connects, through canonical knowledge, to what a learner actually does — each link is real data, never a coverage claim.
Canonical concept
- How each concept relates to the objective
- named — The objective's own wording names this concept.
- supports — Helps meet the objective, but is not strictly required.
Relations & mental models
Mental models these concepts carry: Energy transformationStocks and flowsActivity → Observable evidence
No pilot activity yet engages these concepts directly.
Sits under the variant 'schools with more than seven weekly Physik hours in the Oberstufe'.
Provenance
- Authority
- BMBWF
- Document
- Lehrpläne AHS (RIS Gesetzesnummer 10008568, Stammfassung BGBl. Nr. 88/1985)
- Section
- Anlage A · Physik · Oberstufe, 5. Klasse (Thermodynamik)
- Version
- Bundesrecht konsolidiert, Fassung vom 2026-09-17 (zuletzt geändert BGBl. II Nr. 204/2024)
- School type
- AHS Oberstufe
- Subject
- Physik
- Stage
- upper-secondary
- Accessed
- 2026-09-17
✓ Source verified
Pilot slice: mapped to selected official objectives, not a coverage claim. Concept identity is canonical and never redefined by a curriculum.
Energy makes things happen. It comes in forms like light, heat, movement, and chemical energy, and it can change from one form into another.
Mental models at work here
Energy transformation
Energy is never created or destroyed; it changes from one form into another, and some is always lost as heat.
Follow the energy: where did it come from, what form is it in now, and where does it go next?
Stocks and flows
A stock is an amount that accumulates; flows are the rates that add to or drain it. The stock changes only when inflow and outflow differ.
Think of a bathtub: the water level (stock) rises or falls depending on the tap (inflow) and the drain (outflow).
- Connects 10 other ideas across 1 discipline.
- A cross-disciplinary bridge — its connections reach into 12 other fields.
- Most of its connections are of the “Kind & structure” kind.
- It exercises 2 reusable thinking patterns.
- It supports 4 curriculum objectives.
- It features in 1 learning journey.
Derived from the graph’s real structure — observations, not a score.
Sources
No primary source is attached to this concept yet. In a real deployment this would be required before publication.