Test your basic knowledge |

Basic Of Electricity 2

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. Positively charged particles are repelled by what regions






2. Aparatus that changes direct current to alternating current






3. Also known a probe; applicator for directing electric current from a electrotherapy device to the clents skin.






4. Process that turns the light from a medical laser device into heat.






5. Abbriviated K; 1 -000 watts






6. A color componet within the skin such as blood or melanin.






7. Also known as violet ray; thermal heat producing current with a high rate of oscillation or vibration thats is commonly used for scalp and facial treatmeants






8. Abbreviated O; unit that measure the resistance of a electric current






9. Aparatus that changes alternating current (AC) to direct current (DC).






10. Completes an elctric circuit and carries the current safety away.






11. Abbreviated UV light and and also known as cold light or actinic light; invisble light that has a short wavelength (giving it higher energy) is less penetrating then visisble light - causes chemical reactions to act more quickly than visisble light -






12. Swith that automatclly interrupts or shut off an electric circuit at the first indication of overload.






13. Also known as electromagnetic spectum of radiation; name given to all of the forms of energy (or radiation) that exist.






14. Currents used in electrical facil and scalp treatments






15. A difference in electrical charge in one region compared to another






16. Another name for voltage






17. Abbreviated LED; a medical device used to reduce acne - increase skin circulation - and improve the collagen content in the skin.






18. Distance between successive peaks of elctromagnetic waves.






19. Process of fusing an acidic (positive) product into deeper tissue using galvanic current from the positive pole toward the negative pole.






20. Constant and direct current - having a positive and negative pole - that produces chemical changes when it passes through the tissues and fluids of the body.






21. A measure of factors that inhibit the flow of electricity






22. Abbreviated and also known as amp; unit that measures the strength of an electric current.






23. Charged particles travel through this gradient






24. An exstremely level of electricity that mirrors the body natural electrical impules.






25. Movement of charged particles






26. Electrode of anelectherapy device that is used on the area to be treated






27. Abbreviated W; unit that messure how much electric energy is being used in one second






28. Flow of a electricity of a conductor.






29. The part of electromagnetic spectrum that can be seen. vivsible light only makes up 35% of natural sun light






30. Abbreviated mA; 1/1 -000 of an ampere






31. The path of negative and positive electric currents moving from the source through me the conductors and back to the generating source






32. Light at either end of the spectrum of light that is invisisble to the naked eye.






33. Abbriviated DC; constant - even - flowing current thta travels in one direction only and is produced by chemicals means.






34. Process of infusing an alkaline (negative) product into the tissues from the negative pole toward the positive pole.






35. Also known as insulator; a material that does not transmit electricity.






36. Positively charged particles are attracted to what regions






37. A medical device thtat uses mutiple color and wavelenghts (broad spectrum) of focus light to treat spider veins - hyperpigmentation - rosacea - and redness - wrenkles - enlarged hairfollocles and pores - and ecessive hair.






38. The movement of particles around an aton that creates pur energy.






39. Meassurements of the distance between two wavelength.






40. Abbreviated AC; rapid and interrupted current - flowing first in one direction and then in the opposite; produced by mechanical means and charges directions 60 times per second.






41. Positive electrode of an electrotherapy device; the anode is usually red is marked with a p or a plus (+) sign.






42. Process of infusing water - soluble products into the skin with the use of electric current - such as the use of positive and negative poles of a galvanic machine.






43. Abbreviated V and also known as voltage; unit that messure the pressuer or force that pushes electric current forward throught a conductor.






44. Prevents excessive current from passing through a circuit.






45. Negative electrode of an electrotherapy device; the cathode is usually black and is marked with an N or a minus (-) sign.






46. Also known as phototherapy; the application of light rays to the skin for the treatment of wrinkles - capillaries - pigmentation - or hair removal.






47. Infared light has no longer wavelenght - penetrates and more deeply - has less energy - and produeces more heat then vivsisble light; makes up 60% of natural light.






48. Opposite pole from the electrode.






49. Negative pole or positive pole of an electric current






50. Substance that speed up chemical reactions.