A student has four wooden blocks in the shapes of the capital letters H, M, X, and Y. The blocks have equal heights, thicknesses, and maximum widths. The student places the four blocks the right way up on a flat, level table. Which block is most likely to fall over when it is gently tapped?
letter H
letter M
letter X
letter Y
245 exam-style questions on CIE IGCSE Physics 1.5 Forces, covering 1.5.1a Forces, resultant force and motion, 1.5.1b Load–extension graphs and the spring constant, 1.5.1c Friction and drag, 1.5.1d Force, mass and acceleration, 1.5.1e Motion in a circular path, 1.5.2a Moment of a force, 1.5.2b Principle of moments and equilibrium, and 1.5.3 Centre of gravity and stability. Each one has a worked solution and a mark scheme showing where the marks go.