HiSET Science Practice Test #2

Question 1

Two species of animals with a similar appearance live in the same habitat but do not compete for food. This is because they most likely

Accepted Answer

occupy different ecological niches

Answer

are the same size

Answer

reproduce at different times of the year

Answer

are active at night

Question 2

In 1957, which nation launched the world's very first satellite into space?

Accepted Answer

Russia

Answer

Germany

Answer

Korea

Answer

United States

Question 3

Which of the available definitions for the following statement is most accurately provided by one of the answer choices?
There is an inverse relationship between the volume and pressure of a gas when the mass of the gas is held constant, and the temperature is also held constant.

Accepted Answer

Boyle's Law

Answer

Ideal Gas Law

Answer

Stefan-Boltzmann Law

Answer

Charles' Law

Question 4

Which one of the following statements about metals is not typically accurate?

Accepted Answer

They are gases at room temperature.

Answer

They are good conductors of heat.

Answer

They make up the majority of elements on the periodic table.

Answer

They are ductile.

Question 5

The following are the factors that influence the rate of a chemical reaction, with the exception of:

Accepted Answer

amount of mass lost.

Answer

presence of catalysts.

Answer

temperature.

Answer

surface area.

Question 6

What is the most likely value for the pH of a solution that has a high concentration of hydroxide ions (OH-) but a low concentration of hydrogen ions (H+)?

Accepted Answer

9

Answer

5

Answer

8

Answer

6

Question 7

In the process of ionic bonding, an exchange of which of the following takes place between two or more atoms?

Accepted Answer

valence electrons

Answer

neutrons

Answer

electrical charges

Answer

transitory electrons

Question 8

Which one of these elements does not appear in the chart of the periodic table?

Accepted Answer

magnesium oxide

Answer

chlorine

Answer

phosphorous

Answer

bromine

Question 9

A cyclist is currently making their way up a hill. When exactly does his potential energy reach its highest point?

Accepted Answer

at the very top of the hill

Answer

at the base of the hill

Answer

halfway up the hill

Answer

on the way down the hill

Question 10

ARTICLE XXVI (Ratified July 1, 1971) of the United States Constitution states:
Section 1. The right of citizens of the United States, who are eighteen years of age or older, to vote shall not be denied or abridged by the United States or by any State on account of age.
What historical reality influenced the ratification of this constitutional amendment?

Accepted Answer

Young men were being drafted to serve in the Vietnam War.

Answer

Suffrage was extended to all African Americans.

Answer

Women gained the right to vote.

Answer

The number of people under 21 years of age increased.