Medium
Physics
Forces, Energy & Light
Motion, energy and light, described without the equations.
Sample question
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The speed of light in a vacuum is closest to which value?
Physics
Forces, energy and the rules everything obeys.
Physics has the widest reach of any science and the worst reputation for approachability, largely because it is usually introduced through equations rather than through what it describes. This category takes the descriptive route: what the laws of motion actually claim, what the units are named after, and why light, sound and gravity behave as they do. It covers the constants worth carrying around, the speed of light among them. The explanations describe the mechanism in plain terms and keep the mathematics out of it entirely, since almost every principle here can be stated in a sentence.
Difficulty mix
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Motion, Mass and Momentum
Ten questions on how things move, why they stop, and what a force actually does to them.
1 easy
3 medium
1 hard
6–8 min each
5 quizzes in Physics
Easy
Physics
Motion, Mass and Momentum
Ten questions on how things move, why they stop, and what a force actually does to them.
Sample question
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Newton's third law says forces come in pairs. What is true of the two forces in a pair?
Medium
Physics
Energy, Heat and Temperature
Where energy goes, why heat only ever flows one way, and why a metal handle feels colder than a wooden one.
Sample question
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What does the temperature of a substance actually measure?
Medium
Physics
Light, Sound and Waves
Why thunder lags behind lightning, how a straw appears to bend in a glass, and what makes a passing siren drop in pitch.
Sample question
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Why can sound not travel through the vacuum of space?
Hard
Physics
Electricity and Magnetism
Circuits, compasses and induction: ten questions on the two forces that turned out to be one.
Sample question
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Ohm's law relates three quantities. Which statement expresses it?
Questions
About Physics quizzes
How many Physics quizzes are there?
5 published quizzes in this subject, 50 questions in total. Every one is researched, written and checked by hand.
How hard are they?
The mix here is 1 easy, 3 medium and 1 hard. Difficulty is about how obscure the answers are, not how fast you have to be — there is no timer on any quiz.
How long does one take?
About 7 minutes on average, ranging from 6 to 8. Playing every physics quiz would take roughly 1 hour.
Which one should I start with?
"Motion, Mass and Momentum" is the gentlest way in — 10 questions, about 6 minutes, rated easy.
Do I need an account?
No. Every quiz is free and playable straight away. An optional free account only saves your scores across devices.
Do you explain the answers?
Yes — every question has a short explanation of why the right answer is right, shown the moment you answer, whether you got it or not.