Chapter 9 Electricity Test Questions

Question 0

an example of a conductor is _____

Answer 0

The human body

Question 1

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

Answer 1

Electricity

Question 2

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

Answer 2

Wire

Question 3

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

Answer 3

Resistor

Question 4

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

Answer 4

Direct

Question 5

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

Answer 5

Mechanical

Question 6

A_______________ is a device that changes direct current to alternating current

Answer 6

Converter

Question 7

A ______________is a device that changes alternating current to direct current

Answer 7

Rectifier

Question 8

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

Answer 8

Electrons

Question 9

The ___________ of an electrical current is measured in ohms

Answer 9

Resistance

Question 10

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

Answer 10

Second

Question 11

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

Answer 11

Fuse

Question 12

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

Answer 12

Circuit breaker

Question 13

All electrical appliances must have ____________________ electrical connections

Answer 13

At least two

Question 14

Do not touch any _______ while using an electrical appliance

Answer 14

Metal

Question 15

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

Answer 15

Electrotherapy

Question 16

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

Answer 16

All answers are correct

Question 17

In electrotherapy, the _______ is the positive pole

Answer 17

Anode

Question 18

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

Answer 18

Polarity

Question 19

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

Answer 19

Most commonly used

Question 20

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

Answer 20

Galvanic

Question 21

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

Answer 21

Water soluable

Question 22

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

Answer 22

Alternating

Question 23

The __________ current produces heat

Answer 23

Telsa

Question 24

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

Answer 24

35%

Question 25

_____________light provides germicidal benefits

Answer 25

Blue

Question 26

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

Answer 26

Penetrate deep into

Question 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.

Answer 27

UVC

Question 28

______________ rays are pure heat rays

Answer 28

Infrared

Question 29

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

Answer 29

2 to 3