1011 past contests
Topic 29 · Why gases assume the shape of their container (kinetic theory)
Topic 29 · Why the kinetic theory attributes gas behaviour to particle motion
Topic 57 · Terminal voltage of a battery from emf, current and internal resistance
Topic 57 · Current for maximum power transfer from a battery to a load
Topic 57 · Internal resistance of a battery from two terminal-voltage/current readings
Topic 4 · Mechanical equilibrium requires balanced (not zero) forces
Topic 20 · High ionizing power of alpha particles
Topic 35 · Uniform circular motion is not mechanical equilibrium
Topic 2 · Orbital period of a geostationary satellite and escape velocity comparison (moon vs earth) (true/false)
Topic 39 · Riddle: lenz's law, the direction of induced emf
Topic 20 · Penetrating vs ionizing power of gamma rays
Topic 40 · The three terminals of a bipolar junction transistor
Topic 40 · Relative physical sizes of a bipolar junction transistor's regions
Topic 30 · Minimizing radiative heat transfer in a dewar flask via silvered walls
Topic 30 · The vacuum jacket of a dewar flask preventing conductive and convective heat loss
Topic 60 · Equivalent voltage of identical batteries connected in parallel
Topic 60 · Equivalent resistance of three equal resistors in parallel
Topic 30 · Ranking common materials by thermal conductivity
Topic 7 · Ranking common materials by electrical resistivity
Topic 39 · Induced emf from a changing magnetic flux (faraday's law)