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 (51)
✍️ 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'.