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Physics
Pin Shearing Apparatus - code: 4200.30

Simple instrument to show forces of thermal contraction.This effective piece of equipment shows dramatically the forces of thermal contraction. Constituted of a metal bar mounted on a sturdy metal base; the bar extends when heated and offers room to place the cast iron pin; the pin will break during cooling (i.e. contraction). Equipped with a set of cast iron pins.
 
Equipment needed
Cotton wool
Alcohol
experiments
  • Tension due to expansion and contraction
  • thermal expansion