Question 1

An electrolyte may be made from water and an additive such as salt, a(n) , or a(n) .&#10;A) acid; alkali&#10;B) base; acid&#10;C) cathode; anode&#10;D) anode; electrode

Accepted Answer

A

Question 2

What is the most important factor in ionization of a gas?&#10;A) electrolysis&#10;B) electron impact&#10;C) ionization&#10;D) electroplating

Accepted Answer

Electron impact is the most important factor in ionization of a gas as it involves the collision of high-energy electrons with gas molecules, leading to the ejection of electrons from the gas molecules and the formation of positive ions. Electrolysis is a process that involves the use of an electric current to decompose a compound, which is not relevant to gas ionization. Ionization is a general term that refers to the process of forming ions, which can be achieved through various methods including electron impact. Electroplating is a process used to coat a surface with a thin layer of metal through electrolysis, which is not relevant to gas ionization.

Question 3

If a magnesium atom combines with two chlorine atoms, the result is .&#10;A) table salt&#10;B) sulfuric acid&#10;C) metallic salt&#10;D) alkali

Accepted Answer

When a magnesium atom combines with two chlorine atoms, it forms magnesium chloride, which is a type of metallic salt. Magnesium is a metal, and when it combines with chlorine, a non-metal, the result is a salt, but not table salt (which is sodium chloride).

Question 4

The operating principles of the cathode-ray tube were discovered by .&#10;A) George Ohm&#10;B) Wilhelm Roentgen&#10;C) Gustav Kirchhoff&#10;D) J.J. Thomson

Accepted Answer

The operating principles of the cathode-ray tube were discovered by J.J. Thomson through his experiments with cathode rays in the late 19th century.

Question 5

What is the process of separating elements electrically?&#10;A) electroplating&#10;B) electrolysis&#10;C) ionizing

Accepted Answer

Electrolysis is the process of separating elements electrically by passing an electric current through a solution or molten compound. This causes the ions in the solution to move towards the electrodes, where they undergo a chemical reaction and are either deposited on the electrode or released into the solution. This process is commonly used to extract metals from ores, purify water, and produce chemicals.

Question 6

In an electroplating operation, what is he positive terminal called?&#10;A) anode&#10;B) cathode

Accepted Answer

The positive terminal in an electroplating operation is called the anode. The anode is where the metal ions are dissolved and transferred to the cathode (negative terminal) to form a coating.

Question 7

In an electroplating operation, what is the negative terminal called?&#10;A) anode&#10;B) cathode

Accepted Answer

The negative terminal in an electroplating operation is called the cathode. The cathode attracts positively charged ions from the plating solution, causing them to deposit onto the surface being plated.

Question 8

Once an arc is started in a gas, the voltage required to maintain conduction is .&#10;A) the same&#10;B) one-half&#10;C) reduced&#10;D) double

Accepted Answer

Once an arc is started in a gas, the voltage required to maintain conduction is reduced. This is because the ionized gas particles provide a path of lower resistance, making it easier for electrons to flow and maintain the arc.

Question 9

Lead-acid batteries use an electrolyte containing .&#10;A) cuprous cyanide&#10;B) table salt&#10;C) metallic salt&#10;D) sulfuric acid

Accepted Answer

Lead-acid batteries use sulfuric acid as the electrolyte to facilitate the chemical reaction that produces electricity.

Question 10

Plating copper onto iron often involves a poisonous solid called .&#10;A) sulfuric acid&#10;B) table salt&#10;C) metallic salt&#10;D) cuprous cyanide

Accepted Answer

Cuprous cyanide is often used in the electroplating process to plate copper onto iron, but it is known to be a poisonous solid.

Question 11

Who discovered and named X-rays?&#10;A) George Ohm&#10;B) Wilhelm Roentgen&#10;C) Gustav Kirchhoff&#10;D) J.J. Thomson

Accepted Answer

The answer of Who discovered and named X-rays?&#10;A) George Ohm&#10;B)...

Question 12

An ion is an atom that has had a(n) added or removed.&#10;A) electron&#10;B) neutron&#10;C) proton&#10;D) quark

Accepted Answer

The answer of An ion is an atom that has...

Question 13

As the atmospheric pressure increases, the amount of voltage required to reach ionization potential .&#10;A) does not change&#10;B) doubles&#10;C) increases&#10;D) decreases

Accepted Answer

The answer of As the atmospheric pressure increases, the amount...

Question 14

One of the most common uses for electroplating is the production of pure .

Accepted Answer

The answer of One of the most common uses for...

Question 15

A copper electroplating process sometimes uses a compound called .&#10;A) table salt&#10;B) copper sulfate&#10;C) sulfuric acid&#10;D) metallic salt

Accepted Answer

The answer of A copper electroplating process sometimes uses a...

Question 16

What is the process of depositing one type of metal onto another using electricity?&#10;A) electrolysis&#10;B) electroplating&#10;C) electrolyte&#10;D) ionization

Accepted Answer

The answer of What is the process of depositing one...

Question 17

X-rays result when cathode rays strike .&#10;A) semiconductor&#10;B) metal&#10;C) gas&#10;D) liquid

Accepted Answer

The answer of X-rays result when cathode rays strike .&#10;A)...

Question 18

What term refers to the amount of voltage an electron must possess to cause ionization?&#10;A) electrolysis point&#10;B) ion point&#10;C) electron impact&#10;D) ionization potential

Accepted Answer

The answer of What term refers to the amount of...

Deck 12: Conduction in Liquids and Gases