Test your basic knowledge |

Basic Electricity Vocab

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Certain quantity of electrons. The unit of measure that specifies the rate at which electric current flows per second.






2. A certain force exhibited by some materials which give them the ability to attract other materials. Principally iron or its alloys.






3. Iron and certain alloys of iron which are magnetized by artificial means.






4. The difference between the electrical condition of one point in an electric circuit and that of another point which tends to cause current to flow between two points. Measured in volts.






5. The path of an electric current. To permit a steady flow of current - the path must be complete. Commonly - a complete circuit includes a device for the production of an electromotive force - connecting wires - and a device supplied with electricity.






6. The rotating member of an electrical machine.






7. (Lode Stone) Certain type of mineral ore which has the natural Properties of a magnet.






8. One millionth of an ampere.






9. A material with few free electrons. A structure or material used to prevent the passage of current.






10. A connection of circuit of low resistance. Current through each of the end- to- end devices is exactly the same. Only one path for the current.






11. The condition where the free electrons are caused to move in the same direction along or through a conductor.






12. A unit of power.






13. A complete path provided for the flow of electrons. Consists of a source - with a closed conducting path leading from the source and back to the source






14. The property of a material that opposes the flow of current.






15. Rate of electrons flow (current flow). When one 'Coulomb' of electrons pass a given point in one second.






16. A rate of movement of electrons through a conductor.






17. In a battery - the electrode which takes up the electrons returning from the external circuit.






18. A unit of work or ENERGY. 1 kilowatt hour = 1 -000 watt hours






19. Any device which may be placed in the circuit and which offers opposition to the flow of electrons around the circuit.






20. A unit of power; equal to 550 foot- pounds per second of approximately 746 watts.






21. That property of a material which determines how readily it conducts magnetic lines of flux. Opposite magnetic quality or conductivity.






22. A single electron or one of two or more electrons in the outer shell of an atom that is responsible for the chemical properties of an atom.






23. A circuit with more than one path. Current branches to flow in every available path.






24. The number of cycles per second. Example: 60 cycles per second alternating current.






25. One- thousandth of volt.






26. Fundamental constituents of matter. The 'elements' (tiny particles) which come together in various combinations to form molecules of many substances.






27. Invisible lines along which magnetic energy travels from one pole of a magnet to the other.






28. A rod or strip composed of two metals having different rates or coefficients of expansion. Upon being heated - it bends in a direction which causes the material with the greater rate of expansion to be on the outside.






29. A circuit with two or more paths for the current to take.






30. An instrument for measuring electric current






31. 1.Material itself (Atomic Structure - Good conductor or Bad) 2.Length of the conductor 3.Cross - sectional area (Size) 4.Temperature






32. The unit of resistance. It is the resistance through which a voltage of 1 volt will produce a current of 1 ampere.






33. A generator that produces alternating current.






34. A circuit with only one path for current to flow. There are no branches.






35. A cell which is rechargeable. Uses materials which change in compostition during delivery of current - but may be restored to original condition upon recharge.






36. A material which CANNOT be magnetized. Example: Wood - Glass - Brass - Rubber...






37. The dissimilar metals which are placed in an electrolyte to form a cell.






38. A device which capacity is its chief electrical property; a device for storing or holding an electric charge; a capacitor.






39. An instrument for measuring electrical power. Most common use: The meter of your house to measure electrical consumption.






40. A very low resistance path placed in a circuit in such a manner as to allow an excessive current flow.






41. Hardened steel which has been magnetized artificially and which retains its magnetic properties






42. A transformer designed to lower voltage of an alternating current. Most common type of transformer used on a power system.






43. In an electrical circuit - or part of an electric circuit - the intensity of the current is equal to the electromotive force that drives it divided by the resistance of the circuit.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


44. Those electrons in orbits farthest out from the nucleus - loosely bound and migrate from one atom to another.






45. A machine which utilizes magnetism to produce an EMF and consequently - an electric circuit.






46. The moving part of a dynamo or motor consisting of coils of wire around an iron core.






47. Positive charge of electricity. Located in the nucleus of the atom.






48. Term applied to the loss of voltage in forcing current through any portion of a circuit. Different factors will cause a drop; material - size - (cross - sectional area) length - temperature.






49. The complete path through which the lines of force travel - leaving the north pole and re- entering the south pole.






50. Smallest part a substance can physically divided into composed of 2 or more atoms.