Content text Module 8- Forces _ Fluids (Intro).pdf
PHYSICS FOR ENGINEERS Methelyn Horohoro- Garzon | Sem 2: 2020-2021 1 R I Z A L T E C H N O L O G I C A L U N I V E R S I T Y Cities of Mandaluyong and Pasig 6.1 Phases of Matter 6.2 Properties of Matter 6.3 Buoyant Force & Archimedes’ Principle 6.4 Bernoulli’s Principle and Torricelli’s Theorem At the end of the module, you will be able to: 1. describe fluids; 2. solve problems related to fluids; and 3. appreciate and cite real- life examples involving forces and fluids (excerpts from the article of Dr. Anne Marie Helmenstine entitled “Phase definition and Examples” and “Phases of Matter” by NASA Glenn Research Center) In chemistry and physics, a physically distinctive form of matter is referred to as a “phase”. Regardless of the type of molecule, matter normally exists as either a solid, a liquid or gas. Over the years, plasma emerged with some unique qualities causing scientists to label it as the “fourth phase”. A phase of matter is characterized by having relatively uniform chemical and physical properties. Phases are different from States of matter. The states of matter (e.g., liquid, solid, gas) are phases, but matter can exist in different phases yet remain in the same state of matter. For example, liquid mixtures can exist in multiple phases, such as an oil phase and an aqueous phase. Moreover, the term phase may also be used to describe equilibrium states on a phase diagram. In her article, Dr. Helmenstine emphasized that “When phase is used in this context, it's typically synonymous with a state of matter because the qualities that describe the phase include the organization of matter as well as variables such as temperature and pressure”. (a) Solid When molecules are closely bound together by molecular forces, a solid phase is in place. It holds its shape and the volume is fixed by the shape of the solid. Physics for Engineers (PHY01) Lesson 1: Phases of Matter Learning Outcomes MODULE 6: Forces and Fluids