Pendulum Investigation Kit, 1 Each

The Pendulum Investigation Kit by United Scientific is a complete classroom set for exploring pendulum motion. It includes 1 in drilled balls in steel, aluminum and wood, a three-position pendulum support with clamp, a 6 in x 9 in base with 24 in rod, a half-meter stick, a stopwatch and pendulum cord. Students test the effects of mass, length and amplitude on period, and consider air resistance.