pendula
Clock's swinging weights
Pendula is the Latin plural of pendulum, used in scientific and technical writing: The exhibit displayed several pendula of varying lengths.
In general English, pendulums is more common and sounds less stiff.
Both forms are correct.
Moving in arcs
- arcCurved line segment
- swayRock back and forth
- back-and-forthAlternating reciprocal motion
- oscillateMove rhythmically between extremes
rocking · undulate · bob · dangle · hypnotic · lull · sweep · tick-tock
Repeated back-and-forth movement
- harmonic motionPeriodic movement around equilibrium
- amplitudeMaximum oscillation displacement
- periodicityRecurring at regular intervals
- frequencyRate of recurrence
damping · resonance · equilibrium · gravity · restoring force · waveform · kinetics · dynamics
swinging
Moving in arcs
- arcCurved line segment
- swayRock back and forth
- back-and-forthAlternating reciprocal motion
oscillate · rocking · undulate · bob · dangle · hypnotic · lull · sweep · tick-tock · rhythm
oscillation
Repeated back-and-forth movement
- harmonic motionPeriodic movement around equilibrium
- amplitudeMaximum oscillation displacement
- periodicityRecurring at regular intervals
frequency · damping · resonance · equilibrium · gravity · restoring force · waveform · kinetics · dynamics · inertia
array
Ordered collection or display
- collectionGathered set of items
- seriesOrdered set of related items
- ensembleUnified group or outfit
cluster · grouping · set · assortment · multiple · specimens · variety · range · clocks · installations
- pendulum clockClock using oscillating weight
- pendulum swingWeighted pivot's periodic motion
- Foucault pendulumDevice demonstrating Earth's rotation
- pendulum rideOscillating fairground attraction
- clock pendulumOscillating timekeeping weight