HiSET Science Practice Test #2
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.
According to Boyle's law, under conditions of unchanging mass and temperature, the inverse relationship between pressure and volume can be expressed as PV = c, where c stands for "constant."
The War Powers Act was passed by the United States Congress in 1973. In what ways did the Act reestablish congressional authority over the President's?
The President can only commit combat forces to battle (or to an area where hostilities are imminent) for 60 days under the War Powers Act of 1973, with the possibility of extending this timeframe to 90 days. After this time limit has passed, the President must obtain Congressional approval, either in the form of a mandate or a declaration of war, to retain deployed troops (or to dispatch additional soldiers). Before the War Powers Act, Congress was responsible for approving war-related funding, which did not change.
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+)?
A solution is considered to be basic if it has a greater concentration of hydroxide ions than hydrogen ions. Since the pH of bases is always higher than 7, the only other viable option is 9.
At the start of the Civil War, who was the commander of the Confederate army in northern Virginia?
At the outset of the Civil War, Robert E. Lee turned down Lincoln's offer to head the United States Army. Instead, he decided to lead the Confederate Army of Northern Virginia. He was the leader of the Confederate forces throughout the war's later stages.
In 1957, which nation launched the world's very first satellite into space?
Rocket technology was developed in Germany, and the United States successfully landed a man on the moon in 1969.
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
The correct answer:
occupy different ecological niches
In the seventeenth and eighteenth centuries, several American colonists were enraged by Great Britain's Navigation Acts, primarily because
The Navigation Acts of the seventeenth and eighteenth centuries limited commercial activity and stifled industry in the American colonies. The Acts were a logical extension of British mercantilism, which held that the colonies were essentially for the advantage of the United Kingdom. The colonists were forced to obtain more expensive sugar from the British West Indies than from the French West Indies due to a Navigation Act. The Navigation Acts had a good outcome in that they gave the American colonies a tobacco monopoly by restricting tobacco production in Great Britain. The Acts did not impose a tax on products shipped to the United Kingdom.
What impact did the Truman Doctrine have on US foreign policy after WWII?
becoming communist countries. Its broad language, however, had ramifications beyond those two countries, implying that US policy should generally be to assist people fighting outside forces aiming to install communist authority. This theory led to the United States' engagement in Korea and Vietnam, where American forces fought communist forces in both countries. The Marshall Proposal, rather than the Truman Doctrine, was the United States' plan for supporting the European economy. The Truman Doctrine did not lead to the establishment of a President's Committee on Civil Rights, but it was a byproduct. Finally, when the postwar American economy was afflicted by inflation, the federal government took steps to confront inflation and other economic concerns rather than avoiding them.
In the 1960s and 1970s, the United States battled North Vietnam largely to:
During the Vietnam War, one of the main goals of the US was to stop communism from spreading. North Vietnamese communist forces threatened South Vietnam during the war, and the US stepped in to help the South Vietnamese government. The Domino Theory of communism believes that when one country converts to communism, it is likely that other countries in the vicinity will follow suit. The United States' goal was primarily negative (to end communism) rather than constructive (to implement a specific kind of democracy).
Which of the following lists is in chronological order?
The correct order is Revolutionary War (1776-1783), Great Depression (1929), first moon landing (1969).
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?
Young people protested against being denied voting rights while old enough to fight and die for their country. With the passing of the Nineteenth Amendment in 1920, women were granted the right to vote. Following the Civil War, African American males were guaranteed suffrage, while African American females received the vote in 1920. In 1964, the baby boom came to an end.
A cyclist is currently making their way up a hill. When exactly does his potential energy reach its highest point?
The same as stored energy is potential energy. At the peak of the hill, the cyclist has the greatest amount of potential energy (and the least amount of kinetic energy) due to the fact that his motion has slowed down and he is able to move in any direction.
In the process of ionic bonding, an exchange of which of the following takes place between two or more atoms?
Ionic bonds are created when one atom gives up an electron from its outer shell, also known as a valence electron, to another atom, resulting in the formation of two atoms with opposite charges.
Which one of these elements does not appear in the chart of the periodic table?
Due to the fact that magnesium oxide is a compound made up of two different elements, it is not included on the periodic table.
Which one of the following statements about metals is not typically accurate?
At room temperature, metals typically exist in the solid state, whereas non-metals typically exist in the gaseous state.
The following are the factors that influence the rate of a chemical reaction, with the exception of:
Because the law of conservation of mass (or matter) states that there is no mass loss during a chemical reaction, the rate at which a chemical reaction takes place does not depend on the amount of group destroyed in the process.
