12th Grade General Knowledge Quiz | 20 USA Questions with Answers
This 12th Grade General Knowledge quiz is carefully prepared by a teacher for U.S. high school students. It includes 20 important questions on U.S. history, government, geography, economy, and civics with clear explanations to support exam preparation and daily learning.
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#1. Which amendment gives freedom of speech?
Explanation: The First Amendment protects fundamental freedoms such as speech, religion, press, assembly, and petition.
#2. What is the national currency of the United States?
Explanation: The U.S. dollar is the official currency of the United States and is widely used in international trade.
#3. What is the longest river in the United States?
Explanation: The Missouri River is the longest river in the United States and is a major tributary of the Mississippi River system.
#4. Which U.S. national symbol appears on the Great Seal?
Explanation: The bald eagle symbolizes strength and freedom and is prominently featured on the Great Seal of the United States.
#5. Which document begins with the words “We the People”?
Explanation: The U.S. Constitution begins with “We the People” to show that the power of the government comes from the citizens of the country.
#6. What is the main purpose of the Supreme Court?
Explanation: The Supreme Court interprets the Constitution and ensures that laws follow constitutional principles.
#7. Which symbol represents peace?
Explanation: The olive branch has long been used as a symbol of peace and appears in U.S. national imagery.
#8. Who is known as the first President of the United States?
Explanation: George Washington was the first President of the United States and played a key role in leading the country after independence. He is often called the “Father of the Nation.”
#9. Which U.S. state is known as the “Sunshine State”?
Explanation: Florida is called the “Sunshine State” because of its warm climate and frequent sunny weather.
#10. Which holiday celebrates American independence?
Explanation: Independence Day is celebrated on July 4 to mark the adoption of the Declaration of Independence in 1776.
#11. Which ocean is located on the east coast of the United States?
Explanation: The Atlantic Ocean borders the eastern coast of the United States and has played an important role in trade and history.
#12. Which war was fought between the North and South regions of the U.S.?
Explanation: The American Civil War was fought mainly over issues such as slavery and states’ rights, shaping the future of the nation.
#13. How many states are there in the United States?
Explanation: The United States consists of 50 states. Alaska and Hawaii were the last two states admitted to the Union.
#14. What is the main responsibility of citizens in a democracy?
Explanation: In a democracy, citizens are expected to vote, follow laws, and stay informed to help the system function properly.
#15. What is the capital city of the United States?
Explanation: Washington, D.C. is the capital of the United States and the center of the federal government. It is where important institutions like the White House, Congress, and the Supreme Court are located.
#16. What does “GDP” stand for?
Explanation: GDP measures the total value of goods and services produced in a country and is used to evaluate economic performance.
#17. Which branch of government makes laws?
Explanation: The Legislative Branch, which includes Congress, is responsible for making laws. Congress is made up of the Senate and the House of Representatives.
#18. Which continent is the United States located on?
Explanation: The United States is located in North America, sharing borders with Canada and Mexico.
#19. Who wrote the Declaration of Independence?
Explanation: Thomas Jefferson was the main author of the Declaration of Independence, which announced the American colonies’ separation from British rule.
#20. Who is the Commander-in-Chief of the U.S. military?
Explanation: The U.S. President serves as the Commander-in-Chief of the armed forces according to the Constitution.