Unit 2 Vocab

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Across
  1. 6. the sum of all the forces acting on a msss
  2. 7. an instrument that uses a magnetic needle to show direction
  3. 8. a force acting between surfaces in contact. It acts to resist motion.
  4. 12. to push away from each other
  5. 14. a material capable of transmitting energy, especially electricity
  6. 15. an object that sticks to iron
  7. 16. to pull toward each other
  8. 17. a pathway for the flow of electricity
  9. 19. an instrument used to measure force
  10. 21. an area of magnetic influence around a magnet
  11. 23. energy of movement
  12. 25. a property of certain kinds of materials that causes them to attract iron or steel
  13. 26. to act on and be acted upon by one or more objects
  14. 27. a tiny part of an atom that has a negative charge and moves around the nucleus
  15. 28. in an electromagnet, the material around which a coil is wound
Down
  1. 1. the flow of electricity through a conductor
  2. 2. the standard unit of measuring force in the metric system
  3. 3. a material that prevents the flow of electricity, commonly plastic, rubber or glass
  4. 4. energy that matter has because of its position
  5. 5. a source of stored chemical energy
  6. 9. one item in a circuit
  7. 10. a piece of iron that behaves like a magnet only when it is under the influence of an external magnetic field
  8. 11. a push or a pull
  9. 13. a piece of iron that becomes a temporary magnet when electricity flows through coils of insulated wire wrapped around it
  10. 18. the end of a magnet
  11. 20. the movement of energy from one location to another
  12. 22. the material in a lightbulb that makes light
  13. 24. the place on a component where connections are made for electricity