True or False Questions: 80 Examples (With Answers)

TL;DR. Eighty true-or-false questions across general knowledge, science, history, geography, and pop culture — every answer explained. Plus a short guide to writing TF questions that test understanding rather than 50/50 guessing.

True-or-false (TF) is the most over-used quiz format. It’s fast to write and fast to grade, but a single TF question has a 50% chance of being right by random guess — so a 10-question TF quiz tells you very little about what someone knows. Used carefully, though, TF works well as a warm-up or as part of a mixed-format quiz.

How to write good TF questions

Three rules:

General knowledge (20)

Science (20)

History (15)

Geography (15)

Pop culture (10)

Tips for using TF in your quiz

To generate TF questions on a specific topic, paste your content into the AI quiz generator and choose “True/False.”

Related reading

Build a TF quiz on any topic →

Fixing the guessing problem: three formats that beat plain TF

The core weakness of true-or-false is baked into the format — a student who knows nothing still scores 50%. Rather than dropping TF entirely, adjust how you score or present it so guessing stops paying off.

Justify-the-answer TF. Require a one-sentence reason alongside True or False. "False — Canberra is the capital, not Sydney" earns full credit; a bare "False" earns half. This single change turns a guessing game into a real check of understanding, and it costs nothing to grade if you're using a tool that reviews open text.

Correct-the-false-statement TF. Instead of just marking a statement false, ask the student to rewrite it so it's true. This is closer to short-answer than TF, and it removes the 50% floor almost completely — you can't correct a statement you don't understand.

Confidence-weighted TF. Ask students to also rate how sure they are (low/medium/high). A student who is consistently high-confidence and wrong reveals a specific misconception worth addressing directly, which a flat right/wrong tally hides.

A worked example

Take item 28 from the science set: "The Earth's orbit takes exactly 365 days." A plain TF version rewards a coin-flip guess. A justify-the-answer version forces the real skill: "False — it's about 365.25 days, which is why leap years exist." That one added clause is the difference between testing recall of a fact and testing whether the underlying concept (why leap years exist) actually landed.

Common mistakes when building a TF quiz

If you're building TF sets by hand from a textbook chapter or a set of lecture notes, uploading a PDF and generating a first draft is usually faster than writing all eighty from scratch — you can then edit for the justify-the-answer or correct-the-statement variants above. Teachers running these as graded warm-ups can also see submissions and item-level accuracy from the teacher dashboard tools, which makes it easy to spot which statements the whole class guessed on rather than knew.

Frequently Asked Questions

Is true-or-false a good format for a graded exam?

On its own, not really — a student who guesses randomly on every question will score close to 50%, so TF alone doesn't reliably separate mastery from luck. It works best as a low-stakes warm-up, a fast comprehension check, or one component of a mixed-format quiz alongside multiple choice or short answer.

How many true-or-false questions should a quiz have?

For a quick check, 8-12 is usually enough to spot gaps without taking more than a few minutes. If TF is your only format and the results need to count toward a grade, plan for at least 20-25 to reduce the effect of random guessing on the final score.

What's the difference between true-or-false and multiple choice for testing understanding?

Multiple choice with 4 options drops the guessing baseline to 25% instead of 50%, and well-written distractors can reveal specific misconceptions. TF is faster to write and grade but tells you less per question — it's a tradeoff between speed and diagnostic depth, not a strictly better or worse format.

Can I generate true-or-false questions automatically from my own material?

Yes. Paste your notes or upload a document into the AI quiz generator and select the true/false type. The free plan includes 5 AI generations a month, which is enough to try the format on a chapter or unit before deciding whether to build a full question bank.