Electricity Flashcards
Which of the following measures the resistance of electrical current?
Ohm
Which of the following is a good example of an insulator?
Wood
Which of the following types of effects does electricity exhibit?
magnetic, thermal, and chemical
Which of the following BEST differentiates between direct current and alternating current?
Direct current flows in one direction, whereas alternating current flows back and forth.
Which of the following is TRUE of electricity?
It does not occupy space or have mass.
In which of the following locations would a GFI MOST likely be required?
a bathroom
The third circular electrical connection on a three-prong plug is called a ____
Grounding pin
What does a watt measure?
how much electric energy is being used in one second
Which of the following is an electrical safety device that is designed to prevent excessive current from passing through a circuit by blowing out or melting when a wire becomes too hot from overloading the circuit with too much current?
A fuse
Which of the following reactions can be expected when using anaphoresis?
a stimulation of nerves
Which of the following reactions can be expected when using cataphoresis?
A closing of pores
Which of the following BEST differentiates a positive electrode from a negative electrode?
The positive electrode is called an anode; the negative electrode is called a cathode.
Which of the following is used as an applicator for directing electric current from an electrotherapy device to the client’s skin?
an electrode
For which of the following would microcurrent be MOST useful?
reducing redness and inflammation
Which of the following is Tesla high-frequency current used for?
improving germicidal action
Which of the following is TRUE of a galvanic current?
It has a positive and a negative pole
Cathode
Is negative and black
Anode
Is positive and red
Cataphoresis Function:
penetrate acidic substance anode is active during this
Desincrustation Function
saponification with alkaline cathode is active
Anaphoresis Function
penetrate alkaline substance cathode is active
Which of the following is TRUE of infrared light?
It produces heat
Which of the following BEST differentiates between long wavelengths and short wavelengths?
Long wavelengths have low frequency; short wavelengths have high frequency
Which of the following types of energy is most likely associated with nuclear power plants?
Gamma rays
Which percentage of natural sunlight is visible, making up the visible spectrum of light?
35%
Which type of light prompts the skin to produce beneficial vitamin D?
Ultraviolet light
Light therapy is also known as _
Phototherapy
How does energy move through space?
In waves
