Cp tle electrical technology pretest

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Cp tle electrical technology pretest

  1. 1. Multiple Choice: Write the letter in your answer sheet.
  2. 2. The smallest part of something is __________________.A. a nucleus B. a protonC. an electron D. an atom
  3. 3. You need electricity to do manythings, but you do not need it to:A. Watch TV B. Start a carC. Read a book D. Surf the internet
  4. 4. This part of the atom has no chargeand is part of the nucleus:A. Nucleus B. ProtonsC. Electrons D. Neutrons
  5. 5. Negatively charge particles of an atom is a _______________. A. Nucleus B. Protons C. Electrons D. Neutrons
  6. 6. This part of the atom is part of thenucleus and it has a positivecharge:A. Nucleus B. ProtonsC. Electrons D. Neutrons
  7. 7. This part of the atom is very smalland moves around outside thenucleus:A. Nucleus B. ProtonsC. Electrons D. Neutrons
  8. 8. Objects that have like charges :A. Repel B. AttractC. Magnetize D. Stay together
  9. 9. Objects with unlike charge :A. Repel B. AttractC. Break D. Stay away together
  10. 10. Objects that have no charge are attracted to:a. objects with no chargeb . only objects with a positive chargec. all charged objects
  11. 11. The path the electrons flow through is the:A. Circuit B. batteryC. Electrical current d. wires
  12. 12. One source of electricity you can use to power a flashlight is made by a : a. generator b. battery c. atom d. current
  13. 13. It is the flow of moving electrons.A. Electronics B. ElectronsC. Electricity D. Current
  14. 14. 13. The electrons movefrom_______to_______ terminal.A. + to -B. – to -C. – to +D. + to +
  15. 15. 14. A material allowing the flow ofelectric currentA. ConductorB. InsulatorC. ConnectorD. Wire
  16. 16. 15. Connecting a short metal wirebetween the terminals of thebattery.A. Open Circuit B. Close CircuitC. Short Circuit D. Bad Circuit
  17. 17. 16.A. Open Circuit B. Close CircuitC. Short Circuit D. Bad Circuit
  18. 18. 17.A. Open Circuit B. Close CircuitC. Short Circuit D. Bad Circuit
  19. 19. 18. This is made possible when aconductor, such as coil of wirerotates in a magnetic field.A. ElectromagnetismB. FrictionC. PhotoelectricD. Chemical action
  20. 20. 19. Certain materials are rubbedagainst each other to producecharges.A. ElectromagnetismB. FrictionC. PhotoelectricD. Chemical action
  21. 21. 20. Certain materials emit theirelectrons when they are exposedto light under right conditions.A. ElectromagnetismB. FrictionC. PhotoelectricD. Chemical action
  22. 22. 21. There is a breaking up of atomicstructure of some elements, thusreleasing a great amount of energy.A. Piezo-electricB. PhotoelectricC. Nuclear MethodD. Thermoelectric
  23. 23. 22. Uses certain materials, whichwhen made to vibrate, producevoltage.A. Piezo-electricB. PhotoelectricC. Nuclear MethodD. Thermoelectric
  24. 24. 23. This method utilizesmaterials that release electronswhen heated enough.A. Piezo-electricB. PhotoelectricC. Nuclear MethodD. Thermoelectric
  25. 25. 24. An object that attracts metalssuch as iron and steel.a. Magnetb. magnetic fieldc. Poled. attract
  26. 26. 25. The space around a magnet inwhich a magnetic force can befound.a. Magnetb. magnetic fieldc. Poled. attract
  27. 27. 26. The end of a magnet.a. Magnetb. magnetic fieldc. Poled. attract
  28. 28. 27. To pull toward one another, asopposite poles of two magnets pulltoward one another.a. Magnetb. magnetic fieldc. Poled. attract
  29. 29. 28. A form of the mineral magnetizethat is naturally magnetic or hasbecome magnetized.a. Lodestoneb. Compassc. magnetic fieldd. pole
  30. 30. 29. An instrument that uses afreely moving magnetic needle toindicate direction.a. Lodestoneb. Compassc. magnetic fieldd. pole
  31. 31. 30. A piece of iron that becomes atemporary magnet when electricityflows through an insulted wirewrapped around it.a. Lodestoneb. Compassc. magnetic fieldd. electromagnet
  32. 32. Test 2a. Give the steps in making the electromagnet (5 points) 1. 2. 3. 4. 5.b. Draw the electromagnet project(5 points).

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