279 preguntas de práctica, cada una contrastada con la guía oficial.
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Última revisión con las fuentes oficiales:
Conviene saber: For Form N-400 filed on or after October 20, 2025. An officer asks the questions aloud and stops once 12 are answered correctly or 9 incorrectly.
Fuente oficial, revisado el 16 de octubre de 2026
Responde cada una mentalmente y luego abre la respuesta para ver por qué es correcta.
1.What is the highest court in the United States?
Respuesta: Supreme Court
The Supreme Court is the highest court in the United States, so its decision about a law or a case is final. No other court can change it. (Study guide, chapter 4.)
De la guía oficial: «Supreme Court» Fuente oficial, revisado el 14 de octubre de 2026
2.Abraham Lincoln is famous for many things. Name one.
Respuestas aceptadas: Freed the slaves (Emancipation Proclamation); Saved (or preserved) the Union; Led the United States during the Civil War; 16th president of the United States; Delivered the Gettysburg Address
Abraham Lincoln was the 16th President and led the United States during the Civil War. He signed the Emancipation Proclamation, which declared enslaved people in most Southern states free. (Study guide, chapter 10.)
De la guía oficial: «Freed the slaves (Emancipation Proclamation)» Fuente oficial, revisado el 14 de octubre de 2026
3.Why does the flag have 13 stripes?
Respuestas aceptadas: (Because there were) 13 original colonies; (Because the stripes) represent the original colonies
The flag has 13 red and white stripes. They represent the 13 original colonies. (Study guide, chapter 12.)
De la guía oficial: «(Because there were) 13 original colonies» Fuente oficial, revisado el 14 de octubre de 2026
4.Name one power of the U.S. Congress.
Respuestas aceptadas: Writes laws; Declares war; Makes the federal budget
Congress writes the federal laws. It also votes to declare war, as it did the day after Pearl Harbor was attacked in 1941. (Study guide, chapter 2.)
De la guía oficial: «Writes laws» Fuente oficial, revisado el 14 de octubre de 2026
5.Who wrote the Declaration of Independence?
Respuesta: (Thomas) Jefferson
Thomas Jefferson wrote the Declaration of Independence. In it he wrote that everyone has the right to life, liberty and the pursuit of happiness. (Study guide, chapter 8.)
De la guía oficial: «(Thomas) Jefferson» Fuente oficial, revisado el 14 de octubre de 2026
6.Name three national U.S. holidays.
Respuestas aceptadas: New Year’s Day; Martin Luther King, Jr. Day; Presidents Day (Washington’s Birthday); Memorial Day; Juneteenth; Independence Day; Labor Day; Columbus Day; Veterans Day; Thanksgiving Day; Christmas Day
You need to name three. The study guide lists eleven national holidays, among them New Year's Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Veterans Day, Thanksgiving and Christmas. (Study guide, chapter 12.)
De la guía oficial: «New Year’s Day» Fuente oficial, revisado el 14 de octubre de 2026
7.What is the name of the Speaker of the House of Representatives now?
Respuesta: Visit uscis.gov/citizenship/testupdates for the name of the Speaker of the House of Representatives.
The Speaker is the leader of the House of Representatives. Check uscis.gov/citizenship/testupdates or speaker.gov for the Speaker serving at the time of your interview. (Study guide, chapter 2.)
De la guía oficial: «Visit uscis.gov/citizenship/testupdates for the name of the Speaker of the House of Representatives.» Fuente oficial, revisado el 14 de octubre de 2026
8.What major event happened on September 11, 2001 in the United States?
Respuestas aceptadas: Terrorists attacked the United States; Terrorists took over two planes and crashed them into the World Trade Center in New York City; Terrorists took over a plane and crashed into the Pentagon in Arlington, Virginia; Terrorists took over a plane originally aimed at Washington, D.C., and crashed in a field in Pennsylvania
On September 11, 2001, terrorists hijacked four airplanes. Two hit the World Trade Center in New York City, one hit the Pentagon in Virginia, and one crashed in Shanksville, Pennsylvania, and almost 3,000 people died. (Study guide, chapter 11.)
De la guía oficial: «Terrorists attacked the United States» Fuente oficial, revisado el 14 de octubre de 2026
9.Who wrote “The Star-Spangled Banner”?
Respuesta: Francis Scott Key
Francis Scott Key wrote it about seeing the American flag after a battle during the War of 1812. It is the national anthem.
De la guía oficial: «The Star-Spangled Banner was written by Francis Scott Key.» Fuente oficial, revisado el 14 de octubre de 2026
10.What is the economic system of the United States?
Respuestas aceptadas: Capitalism; Free market economy
The economic system of the United States is called a capitalist or market economy. In it the government does not control the economy, and people are free to start a business and make money. (Study guide, chapter 11.)
De la guía oficial: «Capitalism» Fuente oficial, revisado el 14 de octubre de 2026
11.George Washington is famous for many things. Name one.
Respuestas aceptadas: “Father of Our Country”; First president of the United States; General of the Continental Army; President of the Constitutional Convention
George Washington was the general of the colonial army in the Revolutionary War and then the first President, serving from 1789 to 1797. He is known as the Father of Our Country. (Study guide, chapter 9.)
De la guía oficial: «“Father of Our Country”» Fuente oficial, revisado el 14 de octubre de 2026
12.Which country gave the Statue of Liberty to the United States, in 1886?
Respuesta: France
France gave the statue as a symbol of friendship. It has become a symbol of freedom and democracy.
De la guía oficial: «In 1886, France gave the statue to the United States as a symbol of friendship.» Fuente oficial, revisado el 14 de octubre de 2026
13.What is the name of the President of the United States now?
Respuesta: Visit uscis.gov/citizenship/testupdates for the name of the President of the United States.
The answer is whoever holds the office at the time of your interview, so it changes after an election. Check uscis.gov/citizenship/testupdates or whitehouse.gov shortly before you go. (Study guide, chapter 3.)
De la guía oficial: «Visit uscis.gov/citizenship/testupdates for the name of the President of the United States.» Fuente oficial, revisado el 14 de octubre de 2026
14.Martin Luther King, Jr. is famous for many things. Name one.
Respuestas aceptadas: Fought for civil rights; Worked for equality for all Americans; Worked to ensure that people would “not be judged by the color of their skin, but by the content of their character”
Martin Luther King, Jr., was a leader of the civil rights movement who organized peaceful protests against racial discrimination. He gave his famous “I Have a Dream” speech at the Lincoln Memorial in 1963. (Study guide, chapter 11.)
De la guía oficial: «Fought for civil rights» Fuente oficial, revisado el 14 de octubre de 2026
15.What is Veterans Day?
Respuestas aceptadas: A holiday to honor people in the (U.S.) military; A holiday to honor people who have served (in the U.S. military)
Veterans Day, on November 11, honors everyone who has served in the U.S. Armed Forces. It began as Armistice Day, marking the end of World War I on November 11, 1918. (Study guide, chapter 12.)
De la guía oficial: «A holiday to honor people in the (U.S.) military» Fuente oficial, revisado el 14 de octubre de 2026
16.Who vetoes bills?
Respuesta: The President (of the United States)
If the President does not agree with a bill, the President vetoes it, which means not signing it. The bill then does not become law unless Congress votes to override the veto. (Study guide, chapter 2.)
De la guía oficial: «The President (of the United States)» Fuente oficial, revisado el 14 de octubre de 2026
17.Who lived in America before the Europeans arrived?
Respuestas aceptadas: American Indians; Native Americans
Native Americans, also called American Indians, lived in the Americas for around 20,000 years before Europeans arrived. There were many tribes, each with its own culture, language and form of government. (Study guide, chapter 7.)
De la guía oficial: «American Indians» Fuente oficial, revisado el 14 de octubre de 2026
18.What is Memorial Day?
Respuesta: A holiday to honor soldiers who died in military service
Memorial Day, the last Monday in May, honors the men and women who died in service to the United States. It was first called Decoration Day, from the custom of decorating graves. (Study guide, chapter 12.)
De la guía oficial: «A holiday to honor soldiers who died in military service» Fuente oficial, revisado el 14 de octubre de 2026
19.What is the name of the Vice President of the United States now?
Respuesta: Visit uscis.gov/citizenship/testupdates for the name of the Vice President of the United States.
The answer is whoever is Vice President at the time of your interview. Check uscis.gov/citizenship/testupdates or whitehouse.gov shortly before you go. (Study guide, chapter 3.)
De la guía oficial: «Visit uscis.gov/citizenship/testupdates for the name of the Vice President of the United States.» Fuente oficial, revisado el 14 de octubre de 2026
20.Which European country was the first to send ships across the Atlantic Ocean?
Respuesta: Spain
In the 1400s some European countries built ships that could cross the ocean, and Spain went first. England, France and Portugal created colonies later.
De la guía oficial: «Spain was the first country to send ships across the Atlantic Ocean.» Fuente oficial, revisado el 14 de octubre de 2026
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