Chapter 13 Electricity

Question 1

The flow of electricity along a conductor is called a(n)?

Answer 1

Electric current

Question 2

Electric wires are usually covered with a rubber substance that is a(n)?

Answer 2

Insulator

Question 3

What is the device called that changes direct current to alternating current?

Answer 3

A converter

Question 4

What is the term that refers to a rapid and interrupted current that flows in one direction then in the opposite direction?

Answer 4

Alternating current

Question 5

What is the unit that measures the pressure or force that pushes the flow of electrons through a conductor?

Answer 5

Volt.

Question 6

Which unit measures the resistance of an electric current?

Answer 6

Ohm

Question 7

What is the device that prevents excessive current from passing through a circuit called?

Answer 7

A fuse

Question 8

A switch that automatically interrupts or shut off an electric current that the first indication of an overload is called a what?

Answer 8

Circuit breaker

Question 9

The negative electrode of an electro therapy device is called what?

Answer 9

A cathode

Question 10

A process that forces an alkaline product into the tissues from the negative toward the positive pole is called…

Answer 10

Anaphoresis

Question 11

Grounding completes the what and then carries the current safely away.

Answer 11

Electric circuit

Question 12

All the electric appliances you use should be what?

Answer 12

UL certified

Question 13

What kind of current is used when the active electrode is the electrode used on the area to be treated?

Answer 13

Galvanic current

Question 14

Microcurrent can be used to restore elasticity and do what?

Answer 14

Prevent acidic reactions

Question 15

Only licensed professionals can use what?

Answer 15

Light therapy equipment.

Question 16

A wavelength is the distance between successive peaks of what kind of waves?

Answer 16

Electromagnetic.

Question 17

In visible light is the light at either end of the what that is invisible to the naked eye.

Answer 17

Visible spectrum of light

Question 18

True or false:

UVC light is blocked by the O-Zone layer.

Answer 18

True!

Question 19

Catalysts are substances that speed up what?

Answer 19

Chemical reactions

Question 20

All lasers work by a process known as selective what?

Answer 20

Photothermolysis

Question 21

Constant direct current having a positive and negative pole, that produces a chemical change when it passes through the tissues and fluids of the body is known as what kind of current?

Answer 21

Galvanic current

Question 22

And extremely low level of electricity that mirrors the bodies natural electrical impulses is what?

Answer 22

Microcurrent

Question 23

A medical device that uses multiple colors and wavelengths of light do you treat such conditions as excessive hair and spider veins is what?

Answer 23

Intense pulse light

Question 24

The thermal or heat producing current with a high rate of isolation or vibration commonly used for scalp and facial treatments is called what?

Answer 24

Tesla high frequency current

Question 25

A device that works by releasing light onto the skin to stimulate specific responses at precise depth of the skin tissue is called what?

Answer 25

Light emitting diode