Simple Atwood Machine, include Apparatus and 2 pulleys connected by a rod, 1.75inch plastic pulleys connected to a 3inch rod, Overall length is 8.25inch, Two pulleys are connected by a metal rod.
Physical Characteristics of Gases kit, 15 Gas Demonstration Hardware, Gas laws (Boyle’s, Charles’s and Gay-Lussc’s) are simple mathematical relationships between volume, temperature and pressure.