1011 past contests
Topic 10 · Work done by an ideal gas in an isobaric process: $W = P\Delta V$
Topic 34 · Riddle: impulse as the time integral of force
Topic 19 · Suitability and limitations of carbon-14 dating (true/false)
Topic 36 · Limiting friction on an inclined plane at the critical sliding angle (true/false)
Topic 12 · Dimension of a derived physical quantity from a product/quotient of base quantities
Topic 21 · Transition frequency between hydrogen atom energy levels using the rydberg formula
Topic 12 · Riddle: the joule, a derived si unit equivalent to the newton-meter
Topic 61 · Identifying whether a given physical system can exhibit simple harmonic motion (true/false)
Topic 1 · Sign of velocity versus position and acceleration (true/false)
Topic 50 · Flight time of a particle projected vertically upward from level ground
Topic 18 · Thermionic emission of electrons from a heated metal
Topic 33 · Heat capacity at constant volume of a monoatomic ideal gas from its number of moles (cv=1.5nr)
Topic 7 · Resistance of a wire from resistivity, length and cross-sectional area
Topic 26 · Riddle: spontaneous emission (photon emission not triggered by incoming photons)
Topic 26 · What determines the upper frequency bound of the electromagnetic spectrum (true/false)
Topic 33 · Whether the 'quantity of heat' a body contains is proportional to temperature or heat capacity (true/false)
Topic 12 · Propagating relative uncertainty through a product or power
Topic 12 · Whether a ratio of two astronomical or atomic quantities has order of magnitude unity (true/false)
Topic 13 · Active, reactive and apparent power in a series rlc ac circuit (true/false)
Topic 33 · Heat capacity and specific heat: q = c x delta-t