Physics Crossword
Solve 18 physics clues — forces, energy, waves, electricity, and more. Complete each word to unlock an encyclopedic definition.
How to Play
- Click a cell to select — click again to toggle Across/Down.
- Type to fill; cursor advances automatically.
- Use arrow keys to navigate; Tab jumps to the next word.
- Click a clue to jump to that word.
- Check Answers shows correct (green) / wrong (red) cells.
- Complete a word to unlock its encyclopedic definition!
Building your crossword…
Physics Vocabulary: Unlocking the Laws of Nature
Physics is the most fundamental natural science — its laws govern everything from subatomic particles to the large-scale structure of the universe. Physics vocabulary bridges mathematical equations to physical understanding, enabling engineers, scientists, and informed citizens to reason about forces, energy, and matter.
Forces and Motion
Newton's laws describe how forces affect motion: inertia resists change; F = ma relates force, mass, and acceleration; equal and opposite reactions occur in all interactions. Momentum (p = mv) is conserved in closed systems.
Energy
Energy takes many forms (kinetic, potential, thermal, electromagnetic, nuclear) and transforms between them. The first law of thermodynamics states that total energy is always conserved — only converted, never created or destroyed.
Waves and Optics
Waves (amplitude, frequency, wavelength) transfer energy through media or space. Light undergoes reflection (equal angles), refraction (Snell's law), and diffraction. The electromagnetic spectrum spans radio waves to gamma rays.
Electricity
Electric circuits carry current (charge flow) through conductors. Ohm's law (V = IR) relates voltage, current, and resistance. Series and parallel configurations have different effects on current distribution and total resistance.