Question Sets
Untimed practice sets. Take one here, or find them embedded right inside a course's concepts.
Pick a subject to see its topics.
Exam:
70 sets
High School (11–12)Heat Engines, the Second Law and EntropyBoard ExamIBA-Level
Ten questions on the second law: engines and their efficiency, a Carnot engine, a freezer, entropy, reversible processes and an impossible machine. Every answer has a worked solution that names the usual slip.
10 questions
High School (11–12)Entropy, Gibbs Energy and SpontaneityA-LevelAPBoard ExamIB
Ten questions on entropy, Gibbs energy and spontaneity. Untimed.
10 questions
High School (11–12)Permutations and CombinationsA-LevelBoard ExamIB
Ten questions on combinations. Untimed.
10 questions
High School (9–10)GeneralRespirationRespiratory SystemBoard ExamA-LevelIB
Ten questions on aerobic and anaerobic respiration and on breathing. Untimed.
10 questions
High School (11–12)High School (9–10)UndergraduateGeneralData StructuresA-LevelIB
Ten questions on stacks, queues, linked lists, trees and graphs. One asks you to find a mistake.
10 questions
Middle Stage (6–8)High School (9–10)High School (11–12)UndergraduateGeneralSpread of DataAPIB
Ten questions on the range, the interquartile range, the variance and the standard deviation, and on what happens to them when every value changes. One reads a box plot. Every answer has a worked solution that names the usual slip.
10 questions
High School (11–12)Laws of ThermodynamicsA-LevelAPBoard ExamIB
Ten questions on heat, work and the first law: signs of heat and work, a piston, a gas's internal energy, a cycle on a pressure-volume graph, Joule's paddle wheel and a free expansion. Every answer has a worked solution that names the usual slip.
10 questions
High School (11–12)Enthalpy and Hess's LawBoard ExamA-LevelIBAP
Ten questions on enthalpy, calorimetry and Hess's law. Untimed.
10 questions
High School (11–12)Permutations and CombinationsBoard ExamA-LevelIB
Ten questions on permutations. Untimed.
10 questions
High School (9–10)GeneralTransport Across the Cell MembraneBoard ExamA-LevelAPIB
Ten questions on diffusion, osmosis, turgor and plasmolysis, and active transport. One asks you to find a mistake. Every answer has a worked solution that names the usual slip.
10 questions
High School (9–10)High School (11–12)UndergraduateGeneralRecursionBoard ExamA-LevelIBPCEP (Python Institute)
Ten questions on recursion, base cases and the call stack. One asks you to find a mistake.
10 questions
High School (11–12)Heat TransferBoard ExamIB
Ten questions on heat transfer: a window, two rods joined end to end, the sea breeze, Stefan's and Wien's laws, and a cooling cup of soup. Every answer has a worked solution that names the usual slip.
10 questions
High School (11–12)Shapes of Molecules and HybridisationBoard ExamA-LevelAPIB
Ten questions on VSEPR, sigma and pi bonds and hybridisation. Untimed.
10 questions
High School (11–12)Permutations and CombinationsBoard ExamA-LevelIB
Ten questions on the counting principles and factorials. Untimed.
10 questions
High School (9–10)High School (11–12)UndergraduateGeneralSearching and SortingBoard ExamA-LevelIB
Ten questions on linear search, binary search and sorting. One asks you to find a mistake.
10 questions
High School (11–12)Calorimetry and Change of StateBoard ExamA-LevelAPIB
Ten questions on heat: warming water, mixing, a copper block in water, melting ice, steam burns, a kettle, a calorimeter and ice in a drink. Every answer has a worked solution that names the usual slip.
10 questions
High School (11–12)Lewis Structures and Ionic BondsShapes of Molecules and HybridisationBoard ExamIBAP
Ten questions on Lewis structures, ionic bonds and bond parameters. Untimed.
10 questions
High School (9–10)GeneralTrigonometric IdentitiesBoard ExamA-LevelIB
Ten questions on special angles and identities. Untimed.
10 questions
High School (11–12)GravitationCircular MotionA-LevelBoard ExamIBAP
Ten questions on satellites: orbital speeds and periods, the energy of an orbit, geostationary satellites, weightlessness and a scale in a lift. Every answer has a worked solution that names the usual slip.
10 questions
High School (11–12)Periodic TrendsGroups and FamiliesBoard ExamA-LevelIB
Ten questions on the trends across periods and down groups. Untimed.
10 questions
High School (11–12)Complex NumbersQuadratic EquationsBoard ExamA-LevelIB
Ten questions on modulus, conjugate, the Argand plane and complex roots. Untimed.
10 questions
High School (11–12)GravitationWork, Energy and PowerBoard ExamA-LevelAPIB
Ten questions on field, potential and escape: field strength, a satellite's energy, lifting a payload, a hollow sphere, escape speeds, and a probe fired straight up. Every answer has a worked solution that names the usual slip.
10 questions
High School (11–12)Electronic Configuration and ValencyQuantum Mechanical Model of the AtomBoard ExamA-LevelIB
Ten questions on matter waves, quantum numbers, nodes, the filling order and unpaired electrons. One asks you to choose a picture of orbital boxes. Every answer has a worked solution that names the usual slip.
10 questions
High School (11–12)Complex NumbersBoard ExamA-LevelIB
Ten questions on i, the form a + ib and the four operations. Untimed.
10 questions
High School (11–12)GravitationAPBoard ExamIBA-Level
Ten questions on Kepler's laws and gravity: a long year, a comet's orbit, two students, a probe above the Earth, a deep mine, a graph of g to choose, weighing the Earth and a bigger planet. Every answer has a worked solution that names the usual slip.
10 questions