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2,856 multiple-choice questions, from Student Acer and from students like you. After every answer you see why each choice is right or wrong, and questions you haven’t mastered come up first.

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Practice sets by subject

AP Biology6 practice sets
Unit 2, Topics 2.1–2.10
By Student Acer
Organelles and cell size through membrane transport, water potential and endosymbiosis, plus a round on the osmosis and potato water-potential lab.
73 questions · 4 plays · ♥ 1
AP Bio Unit 2.2-2.4 Quiz
By ashtont
31 questions · 4 plays · ♥ 1
Unit 2 Exam-Style Practice
By Student Acer
Test-style questions built on experiments and data: cell fusion, aquaporin eggs, beet membranes, water potential in neighboring cells and lab design.
45 questions · 0 plays
Unit 2 Vocab & Basics
By Student Acer
The terms and core ideas of Cell Structure & Function: organelles, membranes, transport, tonicity, water potential, endosymbiosis and the potato lab.
63 questions · 0 plays
Apbio 2.2 2.4 hard
By ashtont
50 questions · 0 plays
AP Bio Unit 2 Topics 2.2 2.4 Quiz 2
By ashtont
32 questions · 0 plays
AP English Language2 practice sets
Douglass, Chapters VI–IX
By Student Acer
Sophia Auld, literacy and its costs, the valuation, and religious hypocrisy. Rhetoric and motif, not just plot.
46 questions · 0 plays · ♥ 1
Douglass, Chapters X–XI
By Student Acer
Covey, the fight, the 1835 escape plot and the road to New Bedford. Mostly plot recall, with some analysis.
100 questions · 0 plays · ♥ 1
AP Physics 14 practice sets
AP Physics 1 Unit 2 Forces: FRQ Practice
By Student Acer
5 AP-style free-response questions on forces (modified Atwood with friction, the elevator ride, the ramp, finding k, two boxes with an angled rope), split into 23 parts. Each part has a point-by-point rubric and a model answer. Use g = 9.8 m/s².
Free response · 23 questions · 0 plays
AP Physics 1 Unit 2 Forces: Mock Test (Set C)
By Student Acer
16 mixed conceptual and calculation questions, like the real Unit 2 forces test. Set a 30-minute timer and use g = 9.8 m/s². 14–16 right means you're test-ready.
16 questions · 0 plays
AP Physics 1 Unit 2 Forces: Problem-Solving MCQ (Set B)
By Student Acer
16 calculation questions for the Unit 2 forces test: F = ma from graphs, elevators, friction, modified Atwood, angled pulls, inclines, springs, center of mass and connected objects. Each wrong choice explains the mistake behind it. Use g = 9.8 m/s².
16 questions · 0 plays
AP Physics 1 Unit 2 Forces: Conceptual MCQ (Set A)
By ashtont
15 hard conceptual questions for the Unit 2 forces test: third-law pairs, free-body diagrams, apparent weight, static friction, Atwood tension, springs and center of mass. Every choice has an explanation.
15 questions · 0 plays
AP Precalculus7 practice sets
AP Precalc 2.1–2.3: Problem-Solving MCQ (Set B)
By Student Acer
16 computation questions for 2.1–2.3: writing formulas from two terms, counting terms, finding a and b, average rate of change, and growth and decay in context. Calculator only on the car questions. Each wrong choice explains the mistake behind it.
16 questions · 3 plays
AP Precalc 2.1–2.3: Conceptual MCQ (Set A)
By Student Acer
15 hard questions on why things are true in 2.1–2.3: proportional vs. constant change, sequences vs. functions, what a and b force, and exponential limits. No calculator. Every choice has an explanation.
15 questions · 3 plays
AP Precalc 2.1–2.3: FRQ Practice 2
By ashtont
4 new multi-part FRQs on 2.1–2.3 (16 parts): two savings plans (arithmetic vs. geometric), medicine decay with a calculator part, complete-the-table for an exponential and a linear function, and find-the-error on a geometric sequence. Each part has a point-by-point rubric and a sample answer.
Free response · 16 questions · 0 plays
AP Precalc 2.1–2.3: Mock Concept Check 2 (Set E)
By ashtont
A second 16-question mock of the 2.1–2.3 concept check, written like the review sheet: sequence equations and terms, depreciation, claim-and-explanation tables, growth/decay reflected, limit statements and average rate of change. About 30 minutes. Every choice has an explanation.
16 questions · 0 plays
AP Precalc 2.1–2.3: Mixed Practice MCQ (Set D)
By ashtont
16 new hard questions mixing all of 2.1–2.3: sequence formulas from two terms, factors over 2- and 3-unit intervals, decay reflected, range after a shift, percent growth and rates of change. Different questions from Sets A–C. Every choice has an explanation.
16 questions · 0 plays
AP Precalc 2.1–2.3: FRQ Practice
By Student Acer
5 multi-part free-response questions for 2.1–2.3 (two sequences, which kind of function, reading an exponential graph, modeling with sequences, find the error), split into 23 parts. Each part has a rubric and a model answer written the way you'd write it on the test.
Free response · 23 questions · 0 plays
AP Precalc 2.1–2.3: Mock Concept Check (Set C)
By Student Acer
16 mixed questions like the real 2.1–2.3 concept check: sequences, tables, graphs, limit statements, growth and decay, and context problems. Set a 30-minute timer. 14–16 right means you're ready.
16 questions · 0 plays
AP Statistics12 practice sets
AP Stats Unit 1 Part 2 (1F 1H) Super Hard MCQ
By ashtont
51 questions · 7 plays
5A–5B Vocab
By Student Acer
AP Statistics Unit 5 vocabulary for all of 5A and 5B: definition to term, term to definition, and spot-it-in-context questions on scatterplots, correlation, least squares, residual plots, r² and s. 40 questions.
40 questions · 4 plays
5A–5B Day 1 Exam Practice
By Student Acer
Test-style questions on describing scatterplots, interpreting r, predictions, residuals, slope and intercept, extrapolation, outliers and changing units.
28 questions · 4 plays
5A–5B Day 1 Exam Practice 2
By Student Acer
100 more AP-exam-style multiple-choice questions for AP Statistics 5A (scatterplots, describing relationships, correlation r, outliers, units) and 5B Day 1 (regression lines, prediction, residuals, extrapolation, slope and intercept). Every answer choice has an explanation. All new contexts, no repeats from the first Exam Practice set.
100 questions · 3 plays
5A–5B Day 1 Vocab
By Student Acer
Every term from scatterplots, correlation and regression lines (through 5B Day 1), both ways round, plus spotting each one in a real problem.
32 questions · 3 plays
5A–5B Day 1 Basics
By Student Acer
Scatterplots, describing association, correlation r and its limits, then regression lines, prediction, extrapolation, residuals, slope and intercept. Everything on the 5A–5B Day 1 Quiz.
33 questions · 3 plays
AP Stats Unit 1 Part 2 (1F 1H) Vocab
By ashtont
69 questions · 2 plays
AP Stats Unit 1 Part 2 (1F 1H) Super Hard MCQ 2
By ashtont
36 questions · 1 play
5A–5B Exam Practice
By Student Acer
AP-style questions for the Unit 5 test, covering all of 5A and 5B: reading computer output, residual plots and model fit, interpreting r² and s, correlation, slope, prediction and residuals. 40 questions.
40 questions · 0 plays
5A–5B Basics
By Student Acer
AP Statistics Unit 5, sections 5A and 5B in full: scatterplots, correlation, regression lines, least squares and computer output, residual plots, r² and s. 40 core-concept questions.
40 questions · 0 plays
5A–5B Day 1 Free Response
By ashtont
20 AP Statistics free-response prompts for 5A (scatterplots, describing relationships, correlation r) and 5B Day 1 (regression lines, slope/intercept, prediction, residuals, extrapolation). Each has an AP-style rubric and model answer. Built to play as a whiteboard live game.
Free response · 20 questions · 0 plays
AP Statistics Unit 1 Part 2
By shashankc
Winning entry for the "Make a practice set on AP Statistics Unit 1 Part 2" special event.
35 questions · 0 plays
AP U.S. Government1 practice set
ANY AP US Government topic
By academicbigdaddy
AcademicBigDaddy
Flashcards · 105 cards · 0 plays
AP U.S. History25 practice sets
Apush 3.10 4.2 full hard
By ashtont
229 questions · 7 plays · ♥ 1
APUSH 4.8: Jackson and Federal Power
By Student Acer
Practice for Topic 4.8: the Tariff of Abominations, Calhoun and nullification, the Force Bill, the Bank War and pet banks, the Panic of 1837, Indian removal and the Cherokee cases, the Trail of Tears, and “King Andrew” and presidential power. 16 questions with an explanation for every choice.
16 questions · 2 plays
APUSH 4.7: Expanding Democracy
By Student Acer
Practice for Topic 4.7: universal white male suffrage and its limits, popular choice of electors, rising turnout, the Anti-Masons and nominating conventions, Democrats vs. Whigs, the 1840 log cabin campaign, and the spoils system. 15 questions with an explanation for every choice.
15 questions · 2 plays
APUSH 4.6: Effects of the Market Revolution on Society
By Student Acer
Practice for Topic 4.6: wage labor and the new middle class, Lowell mill workers and strikes, the cult of domesticity, Irish and German immigration, nativism and the Know-Nothings, free Black Northerners, and city growth. 15 questions with an explanation for every choice.
15 questions · 2 plays
APUSH 4.5: Causes of the Market Revolution
By Student Acer
Practice for Topic 4.5: what the market revolution was, the putting-out system, turnpikes, canals, steamboats and railroads, interchangeable parts, the cotton boom, corporations and state funding, and regional specialization. 15 questions with an explanation for every choice.
15 questions · 2 plays
APUSH 4.4: America on the World Stage
By Student Acer
Practice for Topic 4.4: causes, course and results of the War of 1812, Tecumseh and Native resistance, diplomacy after 1815 (Rush-Bagot, Convention of 1818, Adams-Onís) and the Monroe Doctrine. 16 questions with an explanation for every choice.
16 questions · 2 plays
APUSH 4.3: Politics and Regional Interests
By Student Acer
Practice for Topic 4.3: the American System, the Tariff of 1816 and Second Bank, regional economies, the Missouri Compromise, the Marshall Court, and the Era of Good Feelings and Panic of 1819. 16 questions with an explanation for every choice.
16 questions · 2 plays
Apush 4.2 hard
By ashtont
50 questions · 2 plays · ♥ 2
Apush 3.12 hard
By ashtont
28 questions · 2 plays · ♥ 1
APUSH 4.3–4.8: Basic Main Ideas
By Student Acer
A warm-up on the big ideas of Topics 4.3–4.8: the American System and regional interests, the War of 1812 and Monroe Doctrine, the market revolution and its effects, expanding democracy, and Jackson’s fights over federal power. 20 easier questions, sorted by topic, with an explanation for every choice.
20 questions · 1 play
Apush 3.11 hard
By ashtont
25 questions · 1 play
Apush 3.10
By ashtont
51 questions · 1 play
APUSH 4.3–4.8: Mixed Practice 2
By ashtont
20 mixed MCQs for Topics 4.3-4.8 on causation, comparison and continuity: Whigs vs. Democrats, tariffs and regional interests, the cult of domesticity, Irish vs. German immigrants, the spoils system, Charles River Bridge, the Panics of 1819 and 1837. Every choice explained.
20 questions · 0 plays
APUSH 4.3–4.8: Mixed Practice 1 (Primary Sources)
By ashtont
21 AP-style source questions for Topics 4.3-4.8: Monroe Doctrine, Jackson's Bank veto, his proclamation on nullification, the Cherokee memorial, a Lowell mill petition, Erie Canal shipping data, the 1824 election results, and Tocqueville. Every choice explained.
21 questions · 0 plays
APUSH 4.3–4.8: Key People & Their Significance
By ashtont
23 MCQs on the key people of Topics 4.3-4.8 and why they mattered: Clay, Calhoun, Webster, Marshall, Monroe, J.Q. Adams, Jackson, Van Buren, Biddle, Taney, Tecumseh, John Ross, Whitney, Slater, Lowell, Fulton, Morse and more. Every choice explained.
23 questions · 0 plays
APUSH 4.3–4.8: Key Events & Their Significance
By ashtont
23 MCQs on the key events of Topics 4.3-4.8 and why they mattered: Missouri Compromise, Marshall Court cases, War of 1812, Monroe Doctrine, Erie Canal, Lowell system, elections of 1824 and 1828, Nullification Crisis, Bank War, Indian removal. Every choice explained.
23 questions · 0 plays
Apush 4.2 era of jefferson frq
By ashtont
Free response · 11 questions · 0 plays
Apush 3.11 3.12 identity and movement frq
By ashtont
Free response · 14 questions · 0 plays
Apush 3.10 shaping a new republic frq
By ashtont
Free response · 12 questions · 0 plays
Apush 3.10 4.2 test review frq
By ashtont
Free response · 37 questions · 0 plays
Seven Years' War & Taxation
By Student Acer
Topics 3.2 and 3.3 in depth: Pontiac's Rebellion, the Stamp Act crisis, Townshend, the Tea Party and the Intolerable Acts.
50 questions · 0 plays
Unit 3 Deep Dive, 3.4–3.9
By Student Acer
Enlightenment ideas through ratification, plus a cross-topic synthesis round that makes you connect the whole unit.
106 questions · 0 plays
Unit 3, Topics 3.2–3.9
By Student Acer
One section per topic, from the Seven Years' War to the Constitution. Built around causation and the historians who argue about it.
80 questions · 0 plays
Apush unit 1-3 hard
By Student Acer
500 questions · 0 plays
Apush 3.10 4.2 harder
By ashtont
106 questions · 0 plays
Vocabulary1 practice set
20 SAT Vocab Words
By Student Acer
Every word tested five ways: definition, reverse definition, correct usage and meaning in context.
100 questions · 0 plays · ♥ 1

Practice until it’s automatic.

Make your own set

Practice sets by subject

Unit 2, Topics 2.1–2.10

AP Bio Unit 2.2-2.4 Quiz

Unit 2 Exam-Style Practice

Unit 2 Vocab & Basics

Apbio 2.2 2.4 hard

AP Bio Unit 2 Topics 2.2 2.4 Quiz 2

Douglass, Chapters VI–IX

Douglass, Chapters X–XI

AP Physics 1 Unit 2 Forces: FRQ Practice

AP Physics 1 Unit 2 Forces: Mock Test (Set C)

AP Physics 1 Unit 2 Forces: Problem-Solving MCQ (Set B)

AP Physics 1 Unit 2 Forces: Conceptual MCQ (Set A)

AP Precalc 2.1–2.3: Problem-Solving MCQ (Set B)

AP Precalc 2.1–2.3: Conceptual MCQ (Set A)

AP Precalc 2.1–2.3: FRQ Practice 2

AP Precalc 2.1–2.3: Mock Concept Check 2 (Set E)

AP Precalc 2.1–2.3: Mixed Practice MCQ (Set D)

AP Precalc 2.1–2.3: FRQ Practice

AP Precalc 2.1–2.3: Mock Concept Check (Set C)

AP Stats Unit 1 Part 2 (1F 1H) Super Hard MCQ

5A–5B Vocab

5A–5B Day 1 Exam Practice

5A–5B Day 1 Exam Practice 2

5A–5B Day 1 Vocab

5A–5B Day 1 Basics

AP Stats Unit 1 Part 2 (1F 1H) Vocab

AP Stats Unit 1 Part 2 (1F 1H) Super Hard MCQ 2

5A–5B Exam Practice

5A–5B Basics

5A–5B Day 1 Free Response

AP Statistics Unit 1 Part 2

ANY AP US Government topic

Apush 3.10 4.2 full hard

APUSH 4.8: Jackson and Federal Power

APUSH 4.7: Expanding Democracy

APUSH 4.6: Effects of the Market Revolution on Society

APUSH 4.5: Causes of the Market Revolution

APUSH 4.4: America on the World Stage

APUSH 4.3: Politics and Regional Interests

Apush 4.2 hard

Apush 3.12 hard

APUSH 4.3–4.8: Basic Main Ideas

Apush 3.11 hard

Apush 3.10

APUSH 4.3–4.8: Mixed Practice 2

APUSH 4.3–4.8: Mixed Practice 1 (Primary Sources)

APUSH 4.3–4.8: Key People & Their Significance

APUSH 4.3–4.8: Key Events & Their Significance

Apush 4.2 era of jefferson frq

Apush 3.11 3.12 identity and movement frq

Apush 3.10 shaping a new republic frq

Apush 3.10 4.2 test review frq

Seven Years' War & Taxation

Unit 3 Deep Dive, 3.4–3.9

Unit 3, Topics 3.2–3.9

Apush unit 1-3 hard

Apush 3.10 4.2 harder

20 SAT Vocab Words