Breadcrumb
1R30.30 - Shear - Spring Cubes, Crystal Lattice

Code Number: 1R30.30
Demo Title: Shear - Spring Cubes, Crystal Lattice
Condition: Excellent
Principle: Shear
Area of Study: Mechanics
Equipment:
Matter Model by Pasco
Procedure:
Place a rubber pad on the lecture bench so that the underside of the model does not move when demonstrating. Push horizontally on the top edge of the model and note the lattice shear. Shear forces to the point of lattice fracture can be demonstrated. Note that there are two such cubes. One has weak springs and one has stiffer springs.
References:
- John A. McClelland, "Stressful Situations", TPT, Vol. 38, # 7, Oct. 2000, p. 426.