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. Meassurements of the distance between two wavelength.






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






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






4. 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.






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






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






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






8. Charged particles travel through this gradient






9. Substance that speed up chemical reactions.






10. Negative pole or positive pole of an electric current






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






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






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






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






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






16. Flow of a electricity of a conductor.






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






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






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






20. Prevents excessive current from passing through a circuit.






21. Another name for voltage






22. Positively charged particles are attracted to what regions






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






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






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






26. Movement of charged particles






27. 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.






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






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






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






31. 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.






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






33. Aparatus that changes direct current to alternating current






34. 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 -






35. 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.






36. Any material that conducts electricity.






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






38. Gradients that make up the electrochemical gradient






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






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






41. Positively charged particles are repelled by what regions






42. Currents used in electrical facil and scalp treatments






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






44. Opposite pole from the electrode.






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






46. 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.






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






48. 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






49. Abbriviated K; 1 -000 watts






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