1011 past contests
Topic 10 · Final pressure of a gas compressed at constant temperature, via boyle's law
Topic 42 · Time constant of an rl circuit, τ=l/r
Topic 11 · Time to reach a given angular momentum under constant torque, from an initially stationary body
Topic 41 · Riddle: magnetism, the collection of phenomena associated with moving charges
Topic 44 · An inductor's stored energy: dependence on current, and release when current decreases (true/false)
Topic 52 · Displacement magnitude vs distance moved, for a general path and a straight-line path (true/false)
Topic 45 · Focal length of a concave mirror from its radius of curvature, r=0.640m
Topic 34 · Mass from linear momentum magnitude and velocity
Topic 43 · Energy stored by a capacitor, e=½cv²
Topic 5 · Electric field between parallel plates, $E = \dfrac{V}{d}$
Topic 3 · Power, work and time relationships for lifting an object (three variants)
Topic 10 · Riddle: heat, the energy transferred between systems due to a temperature difference
Topic 38 · True or false: the smallest resultant of 7n and 9n concurrent forces is 2n
Topic 38 · True or false: the greatest resultant of two concurrent forces occurs when they share the same direction
Topic 60 · True or false: parallel resistance of 20ω and 30ω is at most 10ω
Topic 38 · True or false: the greatest resultant of 7n and 9n concurrent forces is 16n
Topic 60 · True or false: series resistance of 20ω and 30ω is greater than 30ω
Topic 60 · True or false: parallel resistance of 20ω and 30ω is between 20ω and 30ω
Topic 45 · Focal length of a concave mirror from its radius of curvature, f=r/2
Topic 4 · Finding mass from net force and acceleration, $F = ma$