Across
- 4. the branch of mechanics that deals with the mathematical description of the motion and interaction of subatomic particles, incorporating the concepts of quantization of energy, wave-particle duality, the uncertainty principle, and the correspondence principle.
- 5. (of a cable or line) consisting of two concentric conductors separated by an insulator.
- 8. subject to change
- 9. a compound that participates in a chemical reaction that produces another compound
- 10. A molecular beam is produced by allowing a gas at higher pressure to expand through a small orifice into a chamber at lower pressure to form a beam of particles moving at approximately equal velocities, with very few collisions between the particles.
- 12. Crossing of the Pacific Ocean
- 17. phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation.
- 18. a kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously.
- 20. an electronic device for increasing the amplitude of electrical signals, used chiefly in sound reproduction.
- 21. movement back and forth at a regular speed.
- 23. an expert in or student of physics.
- 24. an assembly similar to an electrical cable but containing one or more optical fibers that are used to carry light.
Down
- 1. the natural or artificial growth of crystals on a crystalline substrate determining their orientation.
- 2. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
- 3. having or involving several or many layers.
- 5. a general agreement.
- 6. the branch of science concerned with the investigation and measurement of spectra produced when matter interacts with or emits electromagnetic radiation.
- 7. communication over a distance by cable, telegraph, telephone, or broadcasting.
- 11. the process of converting data into radio waves by adding information to an electronic or optical carrier signal.
- 13. crossing of the Atlantic Ocean
- 14. materials which have a conductivity between conductors and nonconductors or insulators
- 15. the redistribution of atomic energy levels that takes place in a system so that laser or maser action can occur.
- 16. relating to the interrelation of electric currents or fields and magnetic fields.
- 19. belonging is naturally; essential.
- 22. a particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass.