1011 past contests
Topic 3 · Kinetic and potential energy: general concepts (true/false)
Topic 3 · Work-energy theorem: change in kinetic energy from a constant force over time
Topic 3 · Finding the speed of an object from its kinetic energy
Topic 25 · Subatomic particle riddles
Topic 35 · Centripetal force and inertia in circular motion: a car rounding a curve (true/false)
Topic 50 · Projectile motion: maximum height using v squared = u squared minus 2gh
Topic 60 · Current in a series circuit: true/false
Topic 3 · Conservation of mechanical energy for a vertically launched object: kinetic energy at various heights
Topic 10 · Isothermal gas process: boyle's law ($p_1v_1 = p_2v_2$)
Topic 61 · Period of a mass-spring oscillator: t = 2 pi sqrt(m/k)
Topic 18 · The photoelectric effect: factor determining photoelectric current (light intensity / photon flux)
Topic 50 · Projectile motion: flight time
Topic 3 · Rolling motion down an incline: linear speed via energy conservation
Topic 20 · Identifying the missing nuclide in a balanced nuclear fission equation
Topic 13 · Electromotive force (emf) and internal resistance
Topic 45 · Image formation by a convex spherical mirror (true/false)
Topic 48 · Physical quantity riddle: refractive index
Topic 21 · Photon energy of an electron transition in the hydrogen atom
Topic 36 · Conditions for zero friction force (true/false)
Topic 59 · Power dissipation in a series circuit