Across
- 2. positively charged automatic particles
- 7. the highest point in the wave train
- 8. movement of electrons invisible force
- 9. a disturbance in a medium that carries energy without a net movement of particles.
- 11. the branch of physics that studies the behaviour and properties of light
- 13. a negatively charged subatomic particle
- 15. is the branch of classical mechanics that is concerned with the study of forces and their effects on motion
- 16. it measures a small amount of voltage
- 17. a material or object that produces a magnetic field
- 20. a sound caused by the reflection of sound
- 21. The center portion of an atom.
- 24. the distance between identical points
- 25. an act or instance of resisting
- 26. a model of optics that describes light propagation in terms of rays
Down
- 1. an instrument used to measure the properties of electrical
- 3. a moving wave whose oscillations are perpendicular to the direction of the wave
- 4. when light bounces off an object
- 5. the flow of electric charge
- 6. the spreading out of waves as they pass through an aperture or around objects
- 10. it measures a small amount of current
- 12. the unit of power or radiant flux in the International System of Units
- 14. a measurement of resistance between two points of a conductor
- 16. a device that measures voltages of direct current
- 18. Smallest piece of an element containing all of the properties of that element.
- 19. it is reflected sound
- 20. simplest form of matter
- 22. is the pressure from an electrical circuit's power source
- 23. uncharged automatic particles
