Social Studies
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100 free Social Studies trivia questions with answers — history quiz, new questions added Oct 2026.
50 free social studies trivia questions with answers. From the three branches of government to supply and demand, from ancient civilizations to the Civil Rights Movement — social studies covers the full sweep of human society. Think you remember more than your classmates? These 100 questions will put your knowledge to the test.
30 of 100 questions with answers and explanations. Play the quiz
Q 01Splitting government into legislative, executive and judicial branches is called what?
Separation of powers
Separation of powers: the French thinker Montesquieu argued in 1748 that liberty is safest when no single body makes, enforces and judges the law, and America's founders built the idea into their Constitution.
Q 02The US Constitution has been in effect since which year?
1789
1789: the Constitution took effect on 4 March 1789, after being drafted in 1787 and ratified by the ninth state in June 1788; the Bill of Rights followed in 1791.
Q 03Which amendment to the U.S. Constitution abolished slavery?
13th
The 13th Amendment, ratified on 6 December 1865, abolished slavery throughout the United States, while its text permits involuntary servitude as punishment for a crime.
Q 04Which US body has nine members?
Supreme Court
The Supreme Court was given six justices in 1789, and its size changed six times before a law of 1869 settled on nine; a 1937 plan to add up to six more seats failed.
Q 05Besides being at least 35 and a 14-year resident, what must a US president be under the Constitution?
A natural-born citizen
A natural-born citizen: the clause exempted anyone already a citizen when the Constitution was adopted, which the earliest presidents needed, since all those before Martin Van Buren were born before independence.
Q 06Which part of the US government has 100 members, two from each state?
The Senate
The Senate gives every state two seats whatever its population, the 1787 compromise that won over small states afraid of being outvoted; until 1913, state legislatures chose the senators.
Q 07Which of these rights does the First Amendment to the U.S. Constitution protect?
Freedom of the press
Freedom of the press shares the First Amendment with speech, religion, assembly and petition; the amendment was third on the list of twelve sent to the states in 1789 and moved up only because the first two failed to pass at the time.
Q 08Who has the power to declare war according to the U.S. Constitution?
Congress
Congress has formally declared war only eleven times, the last during the Second World War, so the conflicts in Korea, Vietnam and Iraq were all fought without a declaration.
Q 09Which US elections put every House seat on the ballot in years with no presidential race?
Midterm elections
Midterm elections exist because House members serve only two-year terms; between 1934 and 2022 the president's party lost House seats in all but three of them.
Q 10What is the constitutional process by which the House brings charges against a president called?
Impeachment
Impeachment is only the charge, passed by a simple House majority; removal takes a two-thirds vote at the trial that follows, which Andrew Johnson survived by a single vote in 1868.
Q 11If buyers want more of a product at every price and supply stays fixed, what happens to price?
It rises
It rises: when more buyers want the same limited stock, they bid against each other and sellers can charge more, until the higher price puts off enough of them to clear the market.
Q 12What does GDP stand for?
Gross Domestic Product
Gross Domestic Product leaves out unpaid work, so a loaf a baker sells adds to it, while the same loaf baked for his own family adds nothing.
Q 13What is inflation?
A general increase in prices over time
Q 21Which continent has the most countries?
Africa
Africa has 54 recognised states; nearly all were European colonies after the Scramble for Africa, which took European control from about a tenth of the continent in the 1870s to nine-tenths by 1914.
Q 22Which river is usually listed as the longest in the world?
Nile
Nile: it has long been ranked first, but the title is disputed, because some measurements make the Amazon, which carries far more water, the longer of the two.
Q 23The varna hierarchy of Brahmins, Kshatriyas, Vaishyas and Shudras belongs to which country's traditional social system?
India
India's ancient texts rank Brahmins as priests, Kshatriyas as rulers and warriors, Vaishyas as farmers and merchants and Shudras as labourers; the 1950 constitution outlawed untouchability, the shunning of those placed below all four.
A general increase in prices over time: each unit of currency buys less, and the word, borrowed from inflating with air, first described prices swollen by too much money in circulation.
Q 14Which economic system is characterized by private ownership and free markets?
Capitalism
Capitalism was named by its enemies: in its modern sense the word comes from socialist writers of the mid-1800s such as Louis Blanc, who used it as a term of abuse.
Q 15What is the role of the Federal Reserve in the United States?
Acting as the central bank
Acting as the central bank: the Federal Reserve was created in 1913 after the Panic of 1907, when the financier J.P. Morgan had to pledge his own money and rally other bankers to stop the runs.
Q 16What is a tariff?
A tax on imported goods
A tax on imported goods, paid by the importer rather than the foreign seller; the rarer export tax is levied on goods leaving the country instead.
Q 17What is the term for a prolonged period of economic decline?
Recession
Recession: in the US a committee of economists makes the call rather than the popular rule of two shrinking quarters, a test the 2001 recession would have failed.
Q 18What is opportunity cost?
The value of the best alternative forgone
The value of the best alternative forgone: the cost of a year at college is not just tuition but the wages given up by not working, which is why economists say there is no such thing as a free lunch.
Q 19Which Geneva-based body replaced GATT in 1995?
World Trade Organization
World Trade Organization: GATT was drawn up in 1947 as a stopgap and ended up governing much of world commerce for 47 years.
Q 20In economics, which three basic questions must every society answer?
What, how, and for whom to produce
What, how, and for whom to produce: scarcity forces the choice, since no society can make everything its people want; market economies leave the answers to buyers and sellers, command economies to the state.
Q 24What is the most widely spoken language in the world by total number of speakers?
English
English: Ethnologue counts about 1.5 billion speakers, but fewer than 400 million of them are native, which ranks it only third on that measure, behind Mandarin and Spanish; second-language users carry it past every rival.
Q 25Which of the Seven Wonders of the Ancient World is the only one still standing?
The Great Pyramid of Giza
The Great Pyramid of Giza is by far the oldest of the seven, built as the pharaoh Khufu's tomb some 4,500 years ago, yet it is the only one that survives largely intact.
Q 26Which is the largest desert on Earth, counting cold as well as hot ones?
Antarctica
Antarctica counts as a desert because so little snow falls there, the equivalent of only a few centimetres of water a year in the interior; the Sahara is merely the largest hot desert.
Q 27Which religion has the most followers worldwide?
Christianity
Christianity had about 2.3 billion followers in Pew's 2020 count against Islam's 2 billion, but Islam is growing faster, and Pew has projected the two will be nearly level by 2050.
Q 28Lines of latitude, which circle the globe east to west and measure distance from the equator, are also known as what?
Parallels
Parallels is the name because every line of latitude runs parallel to the equator, measuring degrees north or south from 0 at the equator to 90 at the poles.
Q 29Which imaginary line divides the Earth into the Eastern and Western Hemispheres for maps and navigation?
The Prime Meridian
The Prime Meridian was fixed at Greenwich by an international conference in 1884, yet satellite navigation now puts zero longitude about 102 metres east of the line tourists straddle at the observatory.
Q 30Machu Picchu, the famous 15th-century citadel, was built by which civilization?
The Inca
The Inca built it, it is believed, as an estate for the emperor Pachacuti, then abandoned it about a century later; it stayed little known to the outside world until Hiram Bingham was led there in 1911.