Physics and Chemistry Quiz

Physics and Chemistry Quiz: Test Your Science Knowledge

This physics and chemistry quiz features ninety fact-checked questions on the middle school and high school curriculum: chemical elements, atoms, molecules, Ohm's law, optics, thermodynamics. Three difficulty levels, a timer, and a real-time leaderboard. You play directly in your browser, no sign-up or download required. Check out all our quizzes on the science quizzes page.

From the Periodic Table to Ohm's Law

The easy level covers what any high schooler should know cold: gold's symbol (Au), water's formula (H₂O), the speed of light (about 300,000 km/s), and the composition of the atmosphere. The medium level digs deeper: Ohm's law, Avogadro's constant, Archimedes' principle, and the electron configuration of chlorine. Ten questions per level, each with a sourced explanation.

Physical Constants and Thermodynamics

The hard level is for enthusiasts: elementary charge, Planck's constant, the refractive index of water, stable isotopes of hydrogen, the Reynolds number, and the SI unit of radioactivity. These are concepts covered in advanced high school or early college courses, detailed enough to trip up even a science major.

Want a Different Format?

Looking for something different? Try our chronological quiz: put major scientific discoveries in order, from Newton's laws to quantum mechanics. Same subject, different mechanics.

Score, Timer, and Overall Leaderboard

Your score and time are saved after every game. Compare yourself to other players on the overall leaderboard. Come back every day to try the quiz of the day — a new challenge every 24 hours.

Ninety Questions on the Physics and Chemistry Curriculum

This quiz covers the main topics of the curriculum: the structure of matter (atoms, molecules, the periodic table), electricity (Ohm's law, circuits), optics (light, refraction, the visible spectrum), mechanics (forces, pressure, fluids), and thermodynamics (phase changes, entropy). More science quizzes will be added to this page soon.