1011 past contests
Topic 5 · Parabolic trajectory of a charge launched at an angle to a uniform e-field
Topic 5 · Parabolic trajectory of a charge launched perpendicular to a uniform e-field
Topic 5 · Straight-line trajectory of a charge moving parallel to a uniform e-field
Topic 46 · Object distance for a given magnification with a converging lens
Topic 46 · Image distance for a given magnification with a converging lens
Topic 46 · Magnification of a convex lens when the object is within the focal length
Topic 14 · Force to extend a spring a given distance (repeat)
Topic 42 · Resonance frequency of an lc circuit from given l and c
Topic 42 · Finding the capacitance of an lc circuit from resonance frequency and inductance
Topic 42 · Finding the inductance of an lc circuit from resonance frequency and capacitance
Topic 20 · Product isotope from beta-minus decay of sodium-24 (repeat)
Topic 63 · Number of antinodes on a fixed string from its wavelength
Topic 46 · Diverging lens corrects nearsightedness (repeat)
Topic 12 · Riddle: the speed of light as a universal constant
Topic 2 · Riddle: gravity as a universal attractive force
Topic 63 · Wavelength of a standing wave from its number of antinodes
Topic 63 · Fundamental (first-harmonic) wavelength on a string fixed at both ends
Topic 46 · Lens focal length depends on both radii and refractive index, not just the radius (true/false)
Topic 47 · Simple vs compound microscope: image nature and magnification dependence (true/false)
Topic 45 · Focal length of a converging mirror is half its radius of curvature (true/false)