Physics principles demonstrated : internal forces, kinetic energy, molecular bonds The drop can withstand a hammer blow on the core, but will implode due to a small impact on the tip. Notes: Can be disassembled and rearranged into new molecular structure.ĭescription: Formed by a drop of molten glass being rapidly cooled in water, these drops are extremely strong on their core but extremely weak on their tip. Physics principles demonstrated : Normal force, molecular bonds, cubic structure inelastic collisions, coefficient of restitution, polymerizationĭescription: Spring connected set of plastic balls that simulate a molecule of matter. Physics principles demonstrated : elastic vs. The happy ball will rebound like a regular bouncy ball, but the sad ball will just lie on the surface after impact. Physics principles demonstrated : mass, air pressureĭescription: 2 black rubber spheres that look identical, although their reaction when hitting a surface is completely different. Weigh the can before and after evacuation. Best used in small class setting.ĭescription: Aluminum can that is first filled with air and then evacuated. Physics principles demonstrated : density, buoyancy Notes: Use in conjunction with "Density Rod".ĭescription: Steel bucket that hold exactly the same volume of fluid as the volume of the steel cylinder. Notes: Use in conjunction with "Reverse Density Rod".ĭescription: PVC rod that sinks in cool water and floats in warm water. Physics principles demonstrated : density, thermal expansion Properties of Materials - Linear Mechanics - Rotational Motion - Electricity and Magnetism - Optics and Wave Phenomena - Fluids and Thermodynamics - Modern Physicsĭescription: Aluminum rod that sinks in warm water and floats in cool water. List of Physics Demonstrations Currently at UNF