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EE Playbook

Physics EE Criteria Guide

Build a focused physics question, use subject knowledge accurately, and develop a clear chain of reasoning from evidence to conclusion.

Use this guide to keep the Physics Extended Essay disciplined around a specific physical phenomenon, accurate terminology, analytical depth, and a presentation that supports the argument rather than distracting from it.

Physics EE

Assessment criteria

See what each criterion measures, how many marks it carries, and what stronger evidence usually looks like.

This is Marksy's independently written criteria explanation, not an official IB publication.

Criterion A: Focus and Method (6 marks)

How clearly the Physics essay defines a focused research question and uses a suitable research method.

Stronger evidence

The response addresses the criterion consistently and precisely. Evidence is well selected, reasoning is sustained, and important choices or limitations are handled convincingly.

Early-stage evidence

Only fragments of relevant evidence are visible. The response begins to address focus and method, but important parts remain missing, unclear, or unsupported.

Criterion B: Knowledge and Understanding (6 marks)

How accurately the essay uses Physics knowledge, concepts, terminology, and research context.

Stronger evidence

The response addresses the criterion consistently and precisely. Evidence is well selected, reasoning is sustained, and important choices or limitations are handled convincingly.

Early-stage evidence

Only fragments of relevant evidence are visible. The response begins to address knowledge and understanding, but important parts remain missing, unclear, or unsupported.

Criterion C: Critical Thinking (12 marks)

How effectively the essay selects evidence, develops analysis, evaluates material, and builds a reasoned answer.

Stronger evidence

The response addresses the criterion consistently and precisely. Evidence is well selected, reasoning is sustained, and important choices or limitations are handled convincingly.

Early-stage evidence

Only fragments of relevant evidence are visible. The response begins to address critical thinking, but important parts remain missing, unclear, or unsupported.

Criterion D: Presentation (4 marks)

How well the essay's structure, academic conventions, citations, and visual material support the research.

Stronger evidence

The response addresses the criterion consistently and precisely. Evidence is well selected, reasoning is sustained, and important choices or limitations are handled convincingly.

Early-stage evidence

Only fragments of relevant evidence are visible. The response begins to address presentation, but important parts remain missing, unclear, or unsupported.

Criterion E: Engagement (6 marks)

How specifically the reflections show decision-making, adaptation, and learning during the research process.

Stronger evidence

The response addresses the criterion consistently and precisely. Evidence is well selected, reasoning is sustained, and important choices or limitations are handled convincingly.

Early-stage evidence

Only fragments of relevant evidence are visible. The response begins to address engagement, but important parts remain missing, unclear, or unsupported.

Markband guide

Criterion A: Focus and Method (6 marks)

MarksWhat the draft currently shows
0The submitted material does not provide assessable evidence for focus and method.
1-2Only fragments of relevant evidence are visible. The response begins to address focus and method, but important parts remain missing, unclear, or unsupported.
3Some relevant evidence is developed, although the response is inconsistent or leaves important connections unexplained.
4-5The response addresses the criterion securely in most places, using relevant evidence and generally clear reasoning, with limited gaps.
6The response addresses the criterion consistently and precisely. Evidence is well selected, reasoning is sustained, and important choices or limitations are handled convincingly.

Criterion B: Knowledge and Understanding (6 marks)

MarksWhat the draft currently shows
0The submitted material does not provide assessable evidence for knowledge and understanding.
1-2Only fragments of relevant evidence are visible. The response begins to address knowledge and understanding, but important parts remain missing, unclear, or unsupported.
3Some relevant evidence is developed, although the response is inconsistent or leaves important connections unexplained.
4-5The response addresses the criterion securely in most places, using relevant evidence and generally clear reasoning, with limited gaps.
6The response addresses the criterion consistently and precisely. Evidence is well selected, reasoning is sustained, and important choices or limitations are handled convincingly.

Criterion C: Critical Thinking (12 marks)

MarksWhat the draft currently shows
0The submitted material does not provide assessable evidence for critical thinking.
1-3Only fragments of relevant evidence are visible. The response begins to address critical thinking, but important parts remain missing, unclear, or unsupported.
4-6Some relevant evidence is developed, although the response is inconsistent or leaves important connections unexplained.
7-9The response addresses the criterion securely in most places, using relevant evidence and generally clear reasoning, with limited gaps.
10-12The response addresses the criterion consistently and precisely. Evidence is well selected, reasoning is sustained, and important choices or limitations are handled convincingly.

Criterion D: Presentation (4 marks)

MarksWhat the draft currently shows
0The submitted material does not provide assessable evidence for presentation.
1Only fragments of relevant evidence are visible. The response begins to address presentation, but important parts remain missing, unclear, or unsupported.
2Some relevant evidence is developed, although the response is inconsistent or leaves important connections unexplained.
3The response addresses the criterion securely in most places, using relevant evidence and generally clear reasoning, with limited gaps.
4The response addresses the criterion consistently and precisely. Evidence is well selected, reasoning is sustained, and important choices or limitations are handled convincingly.

Criterion E: Engagement (6 marks)

MarksWhat the draft currently shows
0The submitted material does not provide assessable evidence for engagement.
1-2Only fragments of relevant evidence are visible. The response begins to address engagement, but important parts remain missing, unclear, or unsupported.
3Some relevant evidence is developed, although the response is inconsistent or leaves important connections unexplained.
4-5The response addresses the criterion securely in most places, using relevant evidence and generally clear reasoning, with limited gaps.
6The response addresses the criterion consistently and precisely. Evidence is well selected, reasoning is sustained, and important choices or limitations are handled convincingly.

Build Sequence

Did You Know? Most weak drafts fail from sequence chaos, not lack of ideas.

Step 1

Choose a tight physics question

Focus on one relationship, model, or effect that you can investigate with enough depth to sustain an essay.

Step 2

Keep the physics exact

Use correct terminology, definitions, and theory so the essay reads like serious physics writing.

Step 3

Build a reasoned argument

Connect evidence, calculations, and interpretation into a coherent answer instead of a sequence of isolated facts.

Step 4

Finish with clean presentation

Make the structure, citations, and overall layout clear enough that the examiner can focus on the physics itself.

Submission Checklist

  • Research question is specific and appropriate for physics.
  • Theory and terminology are accurate throughout.
  • Analysis supports a clear line of argument.
  • The final draft is polished, structured, and easy to follow.

Quick Wins

  • Write a one-paragraph physics explanation of your answer before expanding to full length.
  • Use one worked example to show your calculation logic clearly.
  • Check that every claim is supported by either data, theory, or both.

Did You Know?

Get Rubric Feedback On Your Physics EE

Upload your Physics Extended Essay draft to Marksy and get independently written feedback on focus, knowledge, critical thinking, and presentation. Every criterion mark is an estimate, not an official result. The result includes an estimated mark for every criterion, evidence from your draft, and the changes to make first. Your final mark may differ after teacher assessment or external moderation.

1. Upload your EE draft PDF to Marksy.
2. Get an estimated mark and feedback for every EE criterion.
3. Revise and resubmit with focused improvements.
Marksy grading results view

Instant Grading Results

See where your score is now, not just where it could be.

Marksy criterion feedback highlights

Criterion-By-Criterion Feedback

See the estimated mark, evidence, and next step for every assessment criterion.

Marksy list of fixes for an IB draft

Action List To Improve

Get concrete next edits instead of vague "improve analysis" advice.

Marksy AI detection and highlight review

Confidence And Integrity Signals

Review flagged sections and strengthen authenticity before submission.

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