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PHY221
Wave motion and sound

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Overview

Purpose
The importance of waves and wave motion cannot be overstated. Radio, television, cell phones, verbal communication, music, and Earthquakes are just a few of the natural phenomena that we may interact with. We start our study with some general definitions, concepts, and mathematics of waves in general and then apply them to sound and earth quake waves. Next semester we will use these same ideas and see how they apply to electromagnetic waves (light, radio, and cell phones).

Prerequisites
o Successful completion of module six (70% or better on quiz 6)

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Target Learning Outcomes
 

Target Competency
7. Analyze vibrational motion and sound
Linked Core Abilities
A. demonstrate ability to think critically
B. solve problems
C. demonstrate effective written communication
D. apply scientific concepts

Performance Standards
You will demonstrate your competence:
o by analyzing the vibrational motion of objects
o by analyzing sound waves
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 identify phase, phase angle, and amplitude from a mathematical model of SHM
o you apply conservation of energy to a mass moving with SHM on a spring
o you construct a mathematical model from phase, phase angle, and amplitude of a SHM
o you distinguish between transverse and longitudinal wave
o you distinguish between S and P waves
o you calculate the speed, tension, or linear density as they relate to a traveling wave on a string
o you calculate the speed of sound a medium
o you apply the Doppler equation to moving sources and/or observers
o you determine mach number and/or apex angle for a given shock wave
o you distinguish beteen shock wave and sonic boom

Learning Objectives
This learning plan addresses the following learning objectives to help you master the competency:
a. Define Simple Harmonic Motion
b. Define amplitude, period, and frequency of a wave
c. write the three mathematical representations for SHM
d. Identify and define phase angle (or constant) and phase of SHM
e. derive the velocity and acceleration from position (for SHM)
f. Write potential and kinetic energy as a function of time for SHM
g. Write the coservation of energy for SHM
h. define and give examples of a transverse wave
i. define and give examples of a longitudinal wave
j. state the characteristics of an earthquake P-wave (primary)
k. state the characteristics of an earthquake S-wave (secondary)
l. Write the equation for the speed of a wave on a stretched string
m. write the equation for the speed of sound in a medium as a function of density and elasticity
n. write the equation for the speed of sound in air as a function of temperature
o. write and explain doppler equation
p. define shock wave and sonic boom
q. state and explain the apex angle for a shock wave
r. explaing the superposition principle
s. define and sketch nodes and antinodes for standing waves
t. relate velocity and wavelength to nodes and antimodes

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Learning Activities
_____1.
READ sections 15.1-15.2

_____2.
be able to REPRODUCE and EXPLAIN example problems 15.1, 15.2,15.3

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READ sections 15.3-15.5

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be able to REPRODUCE and EXPLAIN example problems 15.4,15.5

_____5.
SOLVE assigned problems chp 15

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READ sections 16.1-16.3

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be able to REPRODUCE and EXPLAIN example problems 16.4

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SOLVE assigned problems chpt 16

_____9.
READ sections 17.1 & 17.4

_____10.
be able to REPRODUCE and EXPLAIN example problems 17.1,17.5,17.6

_____11.
SOLVE assigned problems chpt 17

_____12.
be able to REPRODUCE and EXPLAIN in-class-examples for chpts 15-17

_____13.
COMPLETE velocity of sound lab

_____14.
COMPLETE online quiz

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Assessment Activities
_____1.
Complete online quizt 7(70% or better)

_____2.
Submit velocity of sound lab

_____3.
Contribute to discussion

_____4.
Complete in class assessment (conditions with assessment)

hfish@kvcc.edu
12/3/03