This document provides an overview of waves and sound. It defines key terms related to waves like amplitude, wavelength, period, and frequency. It explains that waves can be transverse, longitudinal, or a combination. The document also covers the nature and speed of sound waves, as well as applications of sound like ultrasound imaging and lithotripsy.
The learning object includes the topic of sound waves and the intensity of a sound wave using an echolocation example. Dolphins use echolocation to communicate as they have their own signature whistle. Thus, when a calf (baby dolphin) is separated from the rest of the pod, the mother dolphin tries to relocate the calf using her signature whistle. We calculate the frequency of the sound wave, determine whether or not the calf hear the whistle, and the intensity of the sound wave.
For my LO, I gave some general equations which can be applied for standing wave questions and explained about the pattern of first, second, third harmonic. Then, I gave examples of different standing wave types found in instruments by clarinet and flute. I used a powerpoint to display my learning objective.
The learning object includes the topic of sound waves and the intensity of a sound wave using an echolocation example. Dolphins use echolocation to communicate as they have their own signature whistle. Thus, when a calf (baby dolphin) is separated from the rest of the pod, the mother dolphin tries to relocate the calf using her signature whistle. We calculate the frequency of the sound wave, determine whether or not the calf hear the whistle, and the intensity of the sound wave.
For my LO, I gave some general equations which can be applied for standing wave questions and explained about the pattern of first, second, third harmonic. Then, I gave examples of different standing wave types found in instruments by clarinet and flute. I used a powerpoint to display my learning objective.
La región del infrarrojo (IR) del espectro abarca la radiación con números de ondas comprendidos entre 12.800 y los 10 cm-1, que corresponde a longitudes de onda de 0,78, 1.000 μm. Tanto desde el punto de vista de las aplicaciones como de la instrumentación, es conveniente dividir el espectro IR en tres regiones denominadas infrarrojo cercano, medio y lejano. Las técnicas de las aplicaciones de los métodos basados en cada una de estas regiones difieren considerablemente.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
5. 16.1 The Nature of Waves
Water waves are partially transverse and partially longitudinal.
6. 16.2 Periodic Waves
Periodic waves consist of cycles or patterns that are produced over and
over again by the source.
In the figures, every segment of the slinky vibrates in simple harmonic
motion
7. 16.2 Periodic Waves
In the drawing, one cycle is shaded in color.
The amplitude A is the maximum excursion of a particle of the medium from
the particles undisturbed position.
The wavelength is the horizontal length of one cycle of the wave.
The period is the time required for one complete cycle.
The frequency is related to the period and has units of Hz, or s-1
.
T
f
1
=
9. 16.2 Periodic Waves
Example 1 The Wavelengths of Radio Waves
AM and FM radio waves are transverse waves consisting of electric and
magnetic field disturbances traveling at a speed of 3.00x108
m/s. A station
broadcasts AM radio waves whose frequency is 1230x103
Hz and an FM
radio wave whose frequency is 91.9x106
Hz. Find the distance between
adjacent crests in each wave.
λ
λ
f
T
v ==
f
v
=λ
10. 16.2 Periodic Waves
AM m244
Hz101230
sm1000.3
3
8
=
×
×
==
f
v
λ
FM m26.3
Hz1091.9
sm1000.3
6
8
=
×
×
==
f
v
λ
11. 16.3 The Speed of a Wave on a String
The speed at which the wave moves to the right depends on how quickly
one particle of the string is accelerated upward in response to the net
pulling force.
Lm
F
v =
tension
Length of string
12. 16.3 The Speed of a Wave on a String
Example 2 Waves Traveling on Guitar Strings
Transverse waves travel on each string of an electric guitar after the
string is plucked. The length of each string between its two fixed ends
is 0.628 m, and the mass is 0.208 g for the highest pitched E string and
3.32 g for the lowest pitched E string. Each string is under a tension
of 226 N. Find the speeds of the waves on the two strings.
13. 16.3 The Speed of a Wave on a String
High E
( ) ( )
sm826
m0.628kg100.208
N226
3-
=
×
==
Lm
F
v
Low E
( ) ( )
sm207
m0.628kg103.32
N226
3-
=
×
==
Lm
F
v
14. 16.5 The Nature of Sound Waves
LONGITUDINAL SOUND WAVES
The area of condensation is
the region of compression
with increased air pressure
The area of rarefaction is
the region behind the
condensation with
decreased air pressure
15. 16.5 The Nature of Sound Waves
Individual air molecules are not carried along with the wave.
16. 16.5 The Nature of Sound Waves
THE FREQUENCY OF A SOUND WAVE
The frequency is the number of cycles
per second.
A sound with a single frequency is called
a pure tone.
The brain interprets the frequency in terms
of the subjective quality called pitch.
17. 16.5 The Nature of Sound Waves
THE PRESSURE AMPLITUDE OF A SOUND WAVE
Loudness is an attribute of
a sound that depends primarily
on the pressure amplitude
of the wave.
Larger amplitude = Louder sound
18. 16.6 The Speed of Sound
Sound travels through gases,
liquids, and solids at considerably
different speeds.
19. 16.6 The Speed of Sound
Conceptual Example 5 Lightning, Thunder, and a Rule of Thumb
There is a rule of thumb for estimating how far away a thunderstorm is.
After you see a flash of lighting, count off the seconds until the thunder
is heard. Divide the number of seconds by five. The result gives the
approximate distance (in miles) to the thunderstorm. Why does this
rule work?
20. 16.6 The Speed of Sound
LIQUIDS SOLID BARS
ρ
adB
v =
ρ
Y
v =
Page 304
Page 322
Page 308
21. 16.8 Decibels
The decibel (dB) is a measurement unit used when comparing two sound
intensities.
Because of the way in which the human hearing mechanism responds to
intensity, it is appropriate to use a logarithmic scale called the intensity
level:
( )
=
oI
I
logdB10β
212
mW1000.1 −
×=oI
Note that log(1)=0, so when the intensity
of the sound is equal to the threshold of
hearing, the intensity level is zero.
23. 16.9 The Doppler Effect
The Doppler effect is the
change in frequency or pitch
of the sound detected by
an observer because the sound
source and the observer have
different velocities with respect
to the medium of sound
propagation.
24. 16.10 Applications of Sound in Medicine
By scanning ultrasonic waves across the body and detecting the echoes
from various locations, it is possible to obtain an image.
25. 16.10 Applications of Sound in Medicine
Ultrasonic sound waves cause
the tip of the probe to vibrate at
23 kHz and shatter sections of
the tumor that it touches.
