[HOME][PHY221][Course Information][ASSIGNMENT]

Physical Properties of Materials

 
 

Overview
 

Purpose
To select materials for projects it is necessary to know how the material will respond to its environment. Will it be strong enough? Will it bend or will it break Can it withstand the forces expected? How will it distort under load? Fluids, which includes liquids and gases, are also an important part of our environment. We live at the bottom of a "sea" of air, we transport people and products across oceans of water, and most of our homes are heated by combusting fluids (natural gas, bottled gas, or oil). It is necessary to understand the characteristics of fluids so that we may understand, transport, and safely use them. In this module we will look at several properties of materials that will help answer these questions.

Prerequisites
o Successful completion of module five (70% or better on quiz 5)

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Target Learning Outcomes
 

Target Competency
6. Analyze the physical properties of materials
Linked Core Abilities
A. demonstrate ability to think critically
B. solve problems
C. demonstrate effective written communication
D. apply scientific concepts
E. demonstrate essential computer skills

Performance Standards
You will demonstrate your competence:
o by analyzing the physical properties of solids and fluids
o by using text and notes
o by successfully completing online quiz (at least 70%)
o without a "partner"
o by successfully completing in-class assessment (conditions with assessment)


Your performance will be successful when:
o you solve problems by applyng Pascal's law to physical problems
o you solve problems by applying Bernoulli's law to physical situations
o you solve problems involving streamline flow of fluids
o you solve problems by using Archimedes Principle to floating, sinking, or objects with neutrol buoyancy
o you distinguish between gauge and absolute pressure
o you distinguish between streamline flow and turbulent flow
o you distinguish between the four states of mater
o you solve problems in elasticity using Hook'es Law
o you distinguish between tensile strength and elastic limit
o you calculate mass, weight, volume, or density from the concept of density
o you distinguish between density and specific gravity

Learning Objectives
This learning plan addresses the following learning objectives to help you master the competency:
a. Define stress and strain
b. Define Young's modulus
c. Explain tensile strength and elastic limit
d. Define Bulk modulus
e. Define Shear modulus
f. Describe the characteristics of solid,liquid,gas,and plasma
g. Define pressure for solids
h. Define pressure for fluids
i. State the common units for pressure
j. Explain and give examples of cohesion and adhesion
k. Convert between the common units of pressure (Pascal, lb/sq in, N/sq m, mm of mercury, Torr, Atmosphere)
l. State and explain with examples Pascal's principle
m. Define gauge and absolute pressure
n. Distinguish between mass density, weight density, and specific gravity
o. Explain the relationship between weight an object and the weight of the fluid displaced for cases where the object floats, sinks, or has neutral buoyancy
p. Explain the relationship between the volume of an object and the volume of the fluid displaced for cases where the object floats, sinks, or has neutral buoyancy
q. Write a buoyancy table for densities
r. Explain the relationship between buoyancy and fluid displaced for cases where the object floats, sinks, or has neutrol buoyancy
s. Explain the relationship between buoyancy and weight of object for cases where the object floats, sinks, or has neutrol buoyancy
t. Define flow rate
u. Write and explain the equation of continuity
v. Distinguish between streamline flow and turbulent flow
w. Write and plain the Bernoulli Equation
x. Solve Bernoulli Equation for one of the parameters
y. Write Hooke's law
z. Define spring constant
aa. Solve Hooke's law for one of the parameters

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Learning Activities
_____1.
READ sections 12.4

_____2.
be able to REPRODUCE and EXPLAIN example problems 12.6, 12.7

_____3.
SOLVE assigned problems sect 12.4 and in "additional problems" section

_____4.
READ sections 14.1-14.7

_____5.
be able to REPRODUCE and EXPLAIN example problems 14.1-14.10

_____6.
be able to REPRODUCE and EXPLAIN in-class-examples

_____7.
SOLVE assigned problems chpt 14

_____8.
COMPLETE Archimedes lab*

_____9.
COMPLETE online quiz

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Assessment Activities
_____1.
Complete online quiz 6 (70% or better)

_____2.
Submit Archimedes lab*

_____3.
Contribute to discussion

_____4.
Complete in class assessment (conditions with assessment)

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*project replaces this requirement
 
hfish@kvcc.edu
12/1/04