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WorksheetsFoundations 7: Electricity and Electrical Safety
Total questions: 32
Worksheet time: 19mins
If your co worker starts to receive electrical shocks while holding on to the electrical device, you should...
yell at her to drop it immediately!
tell her to hold on to it while you grab an insulator with her other hand.
tell her to hold on to it hwile you grab a conductor for her other hand.
grab it out of her hand yourself.
Which of these conditions would be a contraindication for high frequency?
the need to increase elimination and absorption
bad acne
pregnancy
scalp conditions
Which type of light causes cancer?
UVB
infared light
UVC
visible light
Light therapy works on all of the following EXCEPT...
lightening hair color
eliminating age spots
wrinkles
hair removal
What is true of ultraviolet light?
it is hot
it is invisible
it slows chemical reactions
it has a long wavelength
Which type of light encourages the skin to produce vitamin D?
galvanic light
fluorescent light
infrared light
ultraviolet light
Phototherapy is also called...
radiotherapy
light therapy
laser therapy
heat therapy
What is the word for prohibiting certain treatments?
counteraction
contradiction
contraindication
conduction
The electromagnetic spectrum is all forms of...
energy except gamma rays
energy except x-rays
microwaves
energy that exist
Which type of energy is acssociated with nuclear power?
gamma rays
x-rays
microwaves
radio waves
What is true of fluorescent light?
its hotter than sunlight
its cooler than sunlight
its yellow-gold
its an incandescent light
Energy moves through space....
electromagnetically
in waves
by physical force
mechanically
Long wavelengths have ___ frequency, and short wavelengths have ___ frequency.
fast, slow
high, low
low, high
visible, invisible
The sun makes up ___ of the visible spectrum of light.
15%
25%
35%
95%
Infrared light...
is galvanic light
is visible light
produces heat
has a bluish tint
If you feel a shock while using an electrical appliance, you should...
keep using the appliance anyway
repair it immediately
give it a break and use it again later when it cools down
unplug the appliance
Using electrical currents to treat the skin is called...
electrotherapy
electrocution
electronics
electricity
A positive electrode is called a(n)...
anode
cathode
A negative electrode is called a(n)...
anode
cathode
Galvanic current...
is broken and inconsistent
is not able to produce a chemical change
has a positive and negative pole
is indirect current
Cataphoriesis has which of the following effects on the skin?
stimulation of nerves
closing of pores
increased blood supply
tissue softens
Why would you use microcurrent?
reducing redness in the skin
removing the natural protective barrier of the skin
slowing healing time in the skin
decreasing muscle tone
Anaphoresis has which effect on the skin?
closing pores
decreasing blood supply
stimulating nerves
hardening tissues
______ measures the resistance of electrical current.
Watts
Volts
Amperes
Ohms
_____ measures how much electricity is being used per second.
Ohm
Ampere
Volt
Watt
If the wire carrying the electrical current is not large enough, the device will...
not power on
electrocute you
overheat
save energy
What does grounding do?
protects against a shock
prevents storm damage to wires
changes conductors to nonconductors
turns DC to AC
Where would you normally find a GFI?
an office space
a bedroom
a bathroom
a closet
How many beauty services are impacted by electricity?
all of them
none of them
half of them
a few of them
Which of these properties is true of electricity
it occupies space
it has mass
both
neither
Which of the following is a conductor?
glass
cement
tap water
wood
Should you clean electrical appliances while they are plugged in?
Yes
No
Sometimes
Only if they are turned off.
