Pendulum Park

Each pendulum's swing period depends on its length. Adjust each rod so its swing lands on the beat, lining the chimes up in time, effectively solving T = 2π·√(L/g) by feel and ear.

• Drag a slider to change a rod's length
• Longer rods swing slower; shorter rods swing faster
• Match each pendulum to the target ring on the beat marker
• Get every chime swinging in time to finish the park

• 2, 3 or 4 chimes for increasing difficulty
• Daily park or Practice for fresh setups

• Desktop: drag the length sliders; toggle Sound to hear the beat
• Phone & tablet: drag sliders with a finger and tap Sound

• Tune the slowest, longest pendulum first and build the others around its beat
• Period grows with the square root of length, so big swings need big length changes
• Trust your ears, when the chimes click into rhythm you're on the target

Pendulum Park is a rhythm puzzle built on the physics of pendulums, where length sets the period you have to time.

• Skills: pendulum motion, period and length, periodic motion, timing
• Best for: roughly grades 7–11 (ages 12–16)
• For parents & teachers: shows the surprising rule that a pendulum's period depends on length, not weight.

Pendulum Park is a physics rhythm puzzle about pendulum period and length. It's an original, free browser game made in-house for PlayPendium.

A free, original browser game on PlayPendium. No download, no install.