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QCAA external exams · Units 3 & 4
Your QCAA external exam revision, all in one place.
Plan from your syllabus, explore past questions, make flashcards, take timed quizzes, and get guided help in Learn.
Revision queue
Across your subjects
- 01 Describe the photoelectric effect in terms of the photon Needs revision
- 02 Identify chiral carbon atoms Needs revision
- 03 Describe the process of ecological succession Needs revision
- 04 Use the formula: the integral of e to the power x, with respect to x, equals e to the power x plus c.Needs revision
- 05 Use De Moivre’s theorem for integral powers: z to the power n equals r to the power n times cis of n theta.Needs revision
#1 is what to revise first. Set confidence when you finish.
2000+ past QCAA questions with official answers
18+ subjects
Every past external exam question, mapped by how similar they are. Search and filter them all for free.
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photoelectric effect
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Open the question list© State of Queensland (QCAA). Licensed under CC BY 4.0; see the QCAA copyright notice. Question text is transcribed from the original paper. Explanations and Learn responses are AI-generated by Noesis and are not QCAA content.
Physics 2025 · Q8
Paper 1 · Multiple choice · 1 mark · Diagram
Unit 3 · Topic 2: Electromagnetism · Electrostatics
Mathematical Methods 2025 · Q1
Paper 1 · Multiple choice · 1 mark
Chemistry 2025 · Q22
Paper 1 · Short response · 2 marks
Official answer · QCAA marking guide
Your result
How did you go?Optional · change your result any time.
Biology 2025 · Q1
Paper 1 · Multiple choice · 1 mark
Specialist Mathematics 2025 · Q7
Paper 1 · Multiple choice · 1 mark · Diagram
A syllabus that tells you where to begin.
Noesis turns your subjects into one ordered list. Revise the first point, then record how confident you feel: low, moderate or high. The list saves your progress and reorders what comes next.
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Solve problems involving the orbital speed of a satellite,
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Generated quizzes randomly select past QCAA questions within your chosen topics, question types, and length.
Targeted quizzes prioritise weak areas using a mix of your planner confidence, Atlas question ratings, revision history, and previous quiz marks.
Practise against the clock, review official answers and marking guidance where available, then record your marks to guide your next session.
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Learn teaches from the syllabus points you are revising, with real past exam questions beside it. Pick a question in the preview and watch a reply come together.
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About Noesis
Made by students, for students.
Noesis is a free QCAA revision project for Queensland external exams, created by Year 12 students Corbin, Giordan, Jamie, and Piotr. We built it to make revision clearer and less overwhelming.