1011 past contests
Topic 5 · True or false: the induced charge on a conductor near a point charge is uniformly distributed
Topic 5 · True or false: the net charge induced on a conductor near a point charge is negative
Topic 5 · Riddle: coulomb's law, a named inverse-square force law
Topic 46 · True or false: max magnification in a compound microscope occurs when the final image coincides with the objective lens
Topic 1 · True or false: velocity, speed and perpendicular acceleration direction relationships
Topic 47 · Maximum magnification of a compound microscope: at infinity vs at the object (true/false)
Topic 64 · True or false: all em waves travel at the same speed in vacuum
Topic 64 · True or false: all em waves travel at the same speed in the same medium
Topic 14 · Spring constant from applied force and extension, hooke's law
Topic 34 · Kinetic energy from linear momentum and mass, ke=p²/2m
Topic 52 · Displacement or acceleration from v²=u²+2ad (three variants)
Topic 59 · Power dissipated by a resistor, p=iv
Topic 10 · Final temperature of an isometric (constant-volume) gas process, variant $120 \to 180\text{ kPa}$
Topic 10 · Initial temperature of an isometric gas process, variant $100 \to 150\text{ kPa}$
Topic 10 · Final pressure of an isometric gas process, variant $200 \to 250\text{ K}$
Topic 41 · Riddle: magnetic flux density, a vector field quantity equal to flux per unit area
Topic 18 · True or false: in the photoelectric effect, a bound electron's ke equals the full photon energy
Topic 18 · True or false: in the photoelectric effect, a free electron dissipates leftover photon energy as heat
Topic 18 · True or false: in the photoelectric effect, excess photon energy is scattered as lower-energy photons