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Basic Of Electricity 2

Subject : engineering
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. 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.

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

3. Substance that speed up chemical reactions.

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

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

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

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

8. Aparatus that changes direct current to alternating current

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

10. Another name for voltage

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

12. 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.

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

14. 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

15. Negative pole or positive pole of an electric current

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

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

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

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

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

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

22. 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.

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

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

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

26. Positively charged particles are repelled by what regions

27. 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.

28. Abbriviated K; 1 -000 watts

29. Positively charged particles are attracted to what regions

30. Prevents excessive current from passing through a circuit.

31. 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.

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

33. Opposite pole from the electrode.

34. Any material that conducts electricity.

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

36. Flow of a electricity of a conductor.

37. Currents used in electrical facil and scalp treatments

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

39. Meassurements of the distance between two wavelength.

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

41. Gradients that make up the electrochemical gradient

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

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

44. Charged particles travel through this gradient

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

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

47. 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 -

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

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

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