O-LEVEL Study Guide 2026
Everything you need to pass the O-LEVEL exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 O-LEVEL Exam Format at a Glance
📚 O-LEVEL Topics to Study (49)
✍️ Sample O-LEVEL Questions & Answers
1. Which component stores electrical energy in a circuit?
A capacitor stores electrical energy in an electric field between two conducting plates separated by an insulator.
2. What role does ASEAN play in Singapore's foreign policy?
Singapore is a founding member of ASEAN (1967). The organisation promotes regional peace, economic cooperation, and gives small states like Singapore a stronger collective voice in global affairs.
3. Which depreciation method allocates an equal charge to each year of an asset's useful life?
The straight-line method calculates depreciation as a fixed amount each year, keeping the annual charge constant throughout the asset's useful life.
4. The price of an item increases from $80 to $92. What is the percentage increase?
Increase = 12. % increase = (12/80) × 100 = 15%.
5. Which colour of visible light has the highest frequency?
In the visible spectrum, violet light has the highest frequency (and shortest wavelength), while red has the lowest frequency.
6. Identify the figure of speech: 'Life is a journey.'
This is a metaphor — it directly compares life to a journey without using 'like' or 'as'.
🎯 Free O-LEVEL Practice Tests
📖 O-LEVEL Guides & Articles
What Practice Test Geeks adds beyond an AI chat for O-Level
An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:
- A timed, full-length O-Level mock exam — 100 questions in 120 minutes with a 50% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
- A fixed O-Level question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
- Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
- A printable O-Level cheat sheet you can print or save as a PDF.
- O-Level flashcards built from the same question bank.
- Free O-Level practice tests with the correct answer shown after each question.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- file.go.gov.sg — Retake policy · verified Nov 2026
- seab.gov.sg — Passing score, score release, test delivery, eligibility, fees, registration · verified Nov 2026