Physics Vocabulary

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Across
  1. 2. the physical property of matter that causes it to experience a force when placed in an electromagnetic field.
  2. 4. is a measuring instrument used to measure the current in a circuit.
  3. 6. an imbalance of electric charges within or on the surface of a material.
  4. 7. the difference of electrical potential between two points.
  5. 8. a force between electric currents: two parallel currents in the same direction attract, in oposite directions repel.
  6. 12. a flow of electric charge. In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in a plasma.
  7. 13. station is an industrial facility for the generation of electric power.
  8. 16. circuit that has two or more paths for current to flow through.
  9. 18. subatomic particle, symbol p or p+, with a positive electric charge of +1e elementary charge and mass slightly less than that of a neutron.
  10. 19. electromotive force or potential difference expressed in volts
  11. 20. change the voltage of (an electric current).
  12. 22. states the current through a conductor between two points is directly proportional to the potential difference across the two points.
  13. 24. a propety of objects which can be transferred to other objects or converted into different forms.
  14. 25. an object or type of material that allow the flow of electrical current in one or more directions.
Down
  1. 1. complete electrical network with a closed loop giving a return path for current.
  2. 3. symbol e− or β−, with a negative elementary electric charge
  3. 5. the magnetic effect of electric currents and magnetic materials.
  4. 9. the current through each of the components is the same, and the voltage across the circuit is the sum of the voltages across each component.
  5. 10. one of the most powerful, fundamental forces in the universe.
  6. 11. a material of such low conductivity that the flow of current through it is negligible.
  7. 14. an instrument used for measuring electrical potential difference between two points in an electric circuit.
  8. 15. an instrument designed to measure electric current, voltage, and usually resistance, typically over several ranges of value.
  9. 17. atom or a molecule in which the total number of electrons is not equal to the total number of protons, giving the atom or molecule a net positive or negative electrical charge.
  10. 21. a measurement of the difficulty encountered by a power source in forcing electric current through an electrical circuit, and hence the amount of power dissipated in the circuit.
  11. 23. is a passive two-terminal electrical component that implements electrical resistance as a circuit element.