Quick Answer: Pendulum Bobs or Spheres is a set of six solid turned spheres, one each of brass, aluminum, copper, zinc, iron and lead, each with a small hook for suspension, in 12 mm, 18 mm and 25 mm sizes.
Last updated: October 2026
Key Features
Six solid turned bobs of different metals
One each of brass, aluminum, copper, zinc, iron and lead
Small hook for suspension
Sizes: 12 mm, 18 mm and 25 mm
Individual pieces also available
Technical Specifications
Specification
Value
Metals
Brass, aluminum, copper, zinc, iron, lead
Construction
Solid turned sphere with small hook
Sizes
12 mm, 18 mm, 25 mm
Supply
Set of six or individual pieces
About This Product
The small hook lets each bob be suspended for pendulum work in the Properties of Matter lab. Bobs can be ordered singly, and wood, plastic or other custom sizes are available on request.
Frequently Asked Questions
Q1. What sizes do the pendulum bobs come in? 12 mm, 18 mm and 25 mm.
Q2. Can single bobs be ordered? Yes. Individual pieces are also available.
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