Thursday, April 23, 2009

Quiz Reminder:

For this quiz, know the following: Definitions for solution, solute, solvent, saturated solution, concentration and solubility. Know how to create a saturated solution and understand the technique for discovering the solubility of a substance.

Know that forces can be pushes or pulls. The weight of an object depends on gravity, gravity is a force, buoyancy is a force acting against gravity. The buoyant force is always equal to the weight of the displaced fluid (Archimedes' Principle). The buoyant force acts on objects whether they float or sink. How low a floating object sits in the fluid depends upon its density. Know how to calculate the buoyant force acting on an object.