Grade 8 Unit 4 Vocabulary

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Across
  1. 2. circuit, A circuit that has only one path for the current to flow. If that path is broken, everything stops working.
  2. 5. circuit, An incomplete circuit where the path is broken, preventing electric current from flowing.
  3. 7. A temporary magnet created by running electric current through a coil of wire wrapped around an iron core.
  4. 9. The property of a material that slows down the flow of electric current, turning some of it into heat.
  5. 12. of charge, Electric charge can be transferred from one object to another, but it cannot be created or destroyed - total amount of charge always stays the same.
  6. 14. The unit used to measure electrical resistance.
  7. 16. A property of tiny particles that causes them to push or pull on each other. It can be positive or negative.
  8. 17. circuit, An unintended path for electricity that has very low resistance, causing a huge, dangerous flow of current.
  9. 18. The process by which heat or electricity travels directly through a material by touching.
  10. 20. A material that allows heat or electricity to flow through it easily.
  11. 22. A passive electrical component (usually a coil of wire) that stores energy in a magnetic field when electric current flows through it.
  12. 23. The "push" or pressure that makes electric current flow through a circuit. It is measured in volts.
  13. 26. The unit used to measure electrical power, or how much energy a device uses per second.
  14. 27. An object that has no overall electric charge because it has an equal number of positive and negative particles.
Down
  1. 1. current, An electric current that flows in only one direction.
  2. 3. The unit used to measure the amount, or "flow," of electric current in a circuit.
  3. 4. A positively charged particle located in the nucleus (center) of an atom.
  4. 6. A tiny, negatively charged particle that orbits the nucleus of an atom. The flow of these particles is electricity.
  5. 8. Connecting an electrical device to the Earth to provide a safe path for excess electricity to travel.
  6. 10. A special material, like silicon, that can sometimes act like a conductor and sometimes like an insulator.
  7. 11. A complete, closed path that allows electricity to flow from a power source and back again.
  8. 13. current, An electric current that changes direction many times per second.
  9. 15. circuit, A complete circuit where the path is unbroken, allowing electric current to flow.
  10. 19. The process of charging an object without touching it, by bringing a charged object close to it.
  11. 21. The unit used to measure electrical pressure (voltage).
  12. 24. current, The flow of electric charge through a material.
  13. 25. circuit, A circuit that has multiple paths for the current to flow. If one path is broken, the others still work.