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Test your basic knowledge |
Basic Of Electricity 2
Start Test
Study First
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. 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.
direct current
visisble spectrum of light
postively charge
alternating current
2. Abbreviated V and also known as voltage; unit that messure the pressuer or force that pushes electric current forward throught a conductor.
volt
galvanic current
chromophore
photothermolysis...
3. Prevents excessive current from passing through a circuit.
nonconductor
electricity
fuse
miliampere
4. Negative electrode of an electrotherapy device; the cathode is usually black and is marked with an N or a minus (-) sign.
postively charge
cathode
polarity
electricity
5. Currents used in electrical facil and scalp treatments
cataphoresis...
modelities
electrode
ohm
6. The part of electromagnetic spectrum that can be seen. vivsible light only makes up 35% of natural sun light
visisble spectrum of light
electrical gradient
wavelength
photothermolysis...
7. Aparatus that changes alternating current (AC) to direct current (DC).
anaphoresis...
rectifier
inactive alactrode
kilowatt
8. Distance between successive peaks of elctromagnetic waves.
wavelength
alternating current
complete electric circuit
grounding
9. A difference in electrical charge in one region compared to another
light therapy
negatively charge
ohm
voltage
10. An exstremely level of electricity that mirrors the body natural electrical impules.
inactive alactrode
ultravilet light
microcurrent
active electrode
11. Meassurements of the distance between two wavelength.
kilowatt
ultravilet light
waveform
fuse
12. 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.
conductor
electric current
infared light
desincrutation
13. 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.
iontophoresis...
anode
tesla high frequency current
miliampere
14. Another name for voltage
anode
wavelength
watt
potential difference
15. Also known as phototherapy; the application of light rays to the skin for the treatment of wrinkles - capillaries - pigmentation - or hair removal.
electromagnetic spectrum
kilowatt
galvanic current
light therapy
16. Positively charged particles are attracted to what regions
desincrutation
negatively charge
concentration and electrical
modelities
17. Abbreviated LED; a medical device used to reduce acne - increase skin circulation - and improve the collagen content in the skin.
light- emitting
light therapy
alternating current
rectifier
18. Abbreviated and also known as amp; unit that measures the strength of an electric current.
ampere
polarity
electrical gradient
visisble spectrum of light
19. Flow of a electricity of a conductor.
miliampere
watt
wavelength
direct current
20. Abbriviated DC; constant - even - flowing current thta travels in one direction only and is produced by chemicals means.
postively charge
alternating current
tesla high frequency current
desincrutation
21. Positive electrode of an electrotherapy device; the anode is usually red is marked with a p or a plus (+) sign.
electromagnetic spectrum
concentration and electrical
anode
tesla high frequency current
22. 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.
potential difference
intense pulse light
infared light
kilowatt
23. Opposite pole from the electrode.
ampere
invisible light
nonconductor
inactive alactrode
24. Positively charged particles are repelled by what regions
potential difference
ultravilet light
kilowatt
postively charge
25. Process of infusing an alkaline (negative) product into the tissues from the negative pole toward the positive pole.
anaphoresis...
light- emitting
voltage
visisble spectrum of light
26. 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 -
direct current
ultravilet light
complete electric circuit
negatively charge
27. The path of negative and positive electric currents moving from the source through me the conductors and back to the generating source
complete electric circuit
chromophore
potential difference
catalyts
28. Process of fusing an acidic (positive) product into deeper tissue using galvanic current from the positive pole toward the negative pole.
cataphoresis...
photothermolysis...
electrode
circuit breaker
29. Charged particles travel through this gradient
wavelength
ohm
ampere
electrical gradient
30. Substance that speed up chemical reactions.
iontophoresis...
catalyts
watt
invisible light
31. Negative pole or positive pole of an electric current
microcurrent
polarity
voltage
electrical gradient
32. The movement of particles around an aton that creates pur energy.
invisible light
photothermolysis...
electric current
volt
33. Gradients that make up the electrochemical gradient
volt
alternating current
intense pulse light
concentration and electrical
34. Electrode of anelectherapy device that is used on the area to be treated
invisible light
active electrode
resistance
electrical gradient
35. A color componet within the skin such as blood or melanin.
chromophore
photothermolysis...
converter
wavelength
36. Abbreviated O; unit that measure the resistance of a electric current
ohm
converter
volt
galvanic current
37. Movement of charged particles
electricity
cathode
modelities
chromophore
38. Completes an elctric circuit and carries the current safety away.
circuit breaker
alternating current
grounding
voltage
39. Light at either end of the spectrum of light that is invisisble to the naked eye.
anaphoresis...
desincrutation
anode
invisible light
40. A measure of factors that inhibit the flow of electricity
conductor
resistance
electricity
alternating current
41. Also known as electromagnetic spectum of radiation; name given to all of the forms of energy (or radiation) that exist.
invisible light
electromagnetic spectrum
modelities
ohm
42. 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
tesla high frequency current
infared light
light therapy
complete electric circuit
43. Abbriviated K; 1 -000 watts
resistance
kilowatt
electricity
electromagnetic spectrum
44. Aparatus that changes direct current to alternating current
nonconductor
converter
fuse
negatively charge
45. Also known as insulator; a material that does not transmit electricity.
nonconductor
conductor
ohm
microcurrent
46. Abbreviated W; unit that messure how much electric energy is being used in one second
conductor
grounding
electromagnetic spectrum
watt
47. Any material that conducts electricity.
wavelength
microcurrent
conductor
waveform
48. Swith that automatclly interrupts or shut off an electric circuit at the first indication of overload.
circuit breaker
photothermolysis...
converter
invisible light
49. Abbreviated mA; 1/1 -000 of an ampere
ultravilet light
electromagnetic spectrum
invisible light
miliampere
50. Also known a probe; applicator for directing electric current from a electrotherapy device to the clents skin.
photothermolysis...
electrode
kilowatt
miliampere