1011 past contests
Topic 33 · Definition of latent heat of fusion
Topic 33 · Definition of specific heat capacity
Topic 31 · Definition of linear expansivity
Topic 32 · Transitivity of thermal equilibrium (zeroth law) (true/false)
Topic 47 · Riddle: the camera and its real, inverted image
Topic 10 · Saturated vapour in equilibrium with its liquid (true/false)
Topic 34 · Conservation of linear momentum requires zero net force (true/false)
Topic 64 · Polarization is possible only for transverse, not longitudinal, waves (true/false)
Topic 4 · Mechanical equilibrium and zero net force (true/false)
Topic 11 · Conservation of angular momentum when net torque is zero (true/false)
Topic 21 · Ionization energy trend for electrons in higher energy levels (true/false)
Topic 26 · J.j. thomson's experiment and the discovery of the electron (true/false)
Topic 42 · Time for the voltage on a discharging rc circuit to fall by half
Topic 10 · Problem of the day: first law of thermodynamics and heat-engine power/efficiency
Topic 5 · Charge on a capacitor from capacitance and voltage
Topic 5 · Energy stored by a capacitor from capacitance and voltage
Topic 39 · Transformer input power from the turns ratio, secondary current and input voltage
Topic 39 · Transformer primary current from the turns ratio and secondary current
Topic 39 · Transformer secondary voltage from the turns ratio
Topic 29 · Why gas volume increases with temperature (kinetic theory)