Ball and Ring
Product Code : EL-LGI-14341
Quick Answer: The Ball and Ring is a brass ring and 25mm-diameter ball apparatus, mounted on a hard wood handle with the ball attached by a chain, used to demonstrate thermal expansion of metals.
As a genuine physics instruments supplier India item, it lets students see thermal expansion directly: at room temperature the ball passes easily through the ring, but after heating the ball in a flame its increased molecular motion makes it expand just enough that it no longer fits through the ring, giving a simple, visual demonstration of heat and thermodynamics.
Specification Value
Ring material
Brass
Ball diameter
25 mm
Handle
Hard wood
Ball attachment
Chain
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