Exercise $2$ Angle of Repose

Exercise Inventory

Materials

$200$ mL Fine Gravel

$200$ mL Sand

$200$ mL Soil

$*$Tap Water

Labware

$(1)250$ mL Beaker

$250$ mL Graduated Cylinder

Protractor

Note: You must provide the materials listed in $*$red$.$

EXERCISE $2$: ANGLE OF REPOSE

When determining slope stability, geologists and civil engineers examine shear stress and shear strength. The shear stress of

a material will differ on varying slopes. In addition, shear strength varies according to material cohesion and particle size. Water

also plays a role in slope stability. In this experiment, you will explore slope stability by constructing slopes of gravel, sand, and

soil, and measuring their angles of repose. You will also explore the effect of water on slope stability. It is advisable to perform this

exercise on a flat area outside.