Across
- 6. a material through which charge cannot flow easily
- 8. a smoothly varying signal produced by continuously changing the voltage or current in a circuit
- 11. a material that has almost zero resistance when it is cooled to low temperatures
- 14. a flow of electric charge that regularly reverses its direction
- 16. a signal that encodes information as a string of 1’s and 0’s
- 18. a crystalline solid that conducts electric current only under certain conditions
- 19. the attraction of repulsion between electrically charged objects
- 20. a flow of electric charge in only one direction
- 21. voltage, or the difference in electrical potential energy between two places in an electric field
- 22. the study of the behavior of electric charges, including how charge is transferred between objects
- 25. a property that causes subatomic particles such as proton and electrons to attract of repel one another
- 26. the science of using electric currents to process or transmit information
Down
- 1. information sent as patterns in the controlled flow of electrons through a circuit
- 2. potential difference, the difference in electrical potential energy between two places in an electric field
- 3. a programmable device that can store and process information
- 4. a material through which electric charge can flow easily
- 5. law stating that the total electric charge in an isolated system is constant; electric charge is never created or destroyed
- 7. the relationship of voltage, current, and resistance: V=IR
- 9. the transfer of charge without contact between materials
- 10. a filed in a region of space that exerts electric forces on charged particles; a field produced by electric charges or by changing magnetic fields
- 12. a device that converts chemical energy into electrical energy
- 13. a thin slice of silicon that contains many solid-state components, a microchip
- 15. a continuous flow of electric charge
- 17. a solid-state component with an n-type semiconductor joined to a p-type semiconductor
- 23. the opposition to the flow of electric charges in a material
- 24. a solid-state component with three layers of semiconductor material, used to turn current on or off or to increase the strength of electric signals