Chapter 9 Electricity Test Questions Flashcards Preview

Barber School Chapter 7 Physiology > Chapter 9 Electricity Test Questions > Flashcards

Flashcards in Chapter 9 Electricity Test Questions Deck (30)
Loading flashcards...
0

______ is a form of energy that produces magnetic, chemical, or thermal effects while in motion.

Electricity

1

an example of a conductor is _____

The human body

2

An electric _________ is composed of a conductor and an insulator.

Wire

3

The current in a circuit can be controlled with an adjustable _________ called a rheostat

Resistor

4

___________ current is constant, even flowing current that travels in one direction only

Direct

5

Alternating current is a rapid and interrupted current that produces a __________ action

Mechanical

6

A_______________ is a device that changes direct current to alternating current

Converter

7

A ______________is a device that changes alternating current to direct current

Rectifier

8

The volt is the unit that measures the pressure that pushes a flow of _________ through a conductor

Electrons

9

The ___________ of an electrical current is measured in ohms

Resistance

10

The amount of electric energy being used in one ______ is measured in watts

Second

11

A___________ is a device that prevents too much current from passing through a circuit.

Fuse

12

The function of a ________ _________ is to shut off an electric circuit at the first sign of an overload.

Circuit breaker

13

All electrical appliances must have ____________________ electrical connections

At least two

14

Do not touch any _______ while using an electrical appliance

Metal

15

The different types of electric current used in ___________ are known as modalities

Electrotherapy

16

The ___________________ application that direct electric current from a machine to a client skin are called electrodes

All answers are correct

17

In electrotherapy, the _______ is the positive pole

Anode

18

The ____________ of an electric current indicates it's negative or positive pole

Polarity

19

The _________________ modality which produces chemical changes when passed through tissue and fluids, it the galvanic current

Most commonly used

20

The process that uses __________ current to the facilitate deep pore cleansing is disincrustation

Galvanic

21

Galvanic current is used to introduce _______ ________ products into the skin in a process called iontophresis

Water soluable

22

A ______________ and interrupting current that produces a mechanical reaction with no chemical effect is the faradic current

Alternating

23

The __________ current produces heat

Telsa

24

About _________ percent of natural sunlight is made up of visible light

35%

25

_____________light provides germicidal benefits

Blue

26

UV rays are used in tanning booths and __________ ____________ _________ the skin tissue

Penetrate deep into

27

_____ Rays are destructive To bacteria, as well as to the skin tissue if the skin is exposed to them for too long a period of time.

UVC

28

______________ rays are pure heat rays

Infrared

29

Exposure to heat rays may start at ____ to ____ minutes and gradually increase over a period of day to 7 to 8 minutes

2 to 3