№ files_lp_4_process_3_121973
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Collection of physics practice problems presenting numerical scenarios involving moving sound sources and observers to analyze perceived frequency changes related to the Doppler effect and sound intensity expressed in decibels.
Subject:
Acoustics
Field of study:
Physics
Topic:
Decibels and Doppler Effect
Document type:
Educational practice problems
Content type:
Problem set
Physical quantities mentioned:
Frequency, speed, sound
Units used:
Hertz (Hz), meters per second (m/s)
Sound sources described:
Police siren, jet explosion, bird chirp, fog horn, bee wing beats
Observers described:
Stationary observer, pilot, crow, boat driver, chasing bee
Motion scenarios:
Moving source, moving observer, pursuit motion
Educational level:
Introductory physics / acoustics exercises
Price: 8 / 10 USD
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Note:
Year
Topic:
Physics
Document Type:
Worksheet
Target Audience:
Students
Year:
1992-2003
Region / City:
USA, Canada, South Korea, Italy, France
Topic:
Diagnostic ultrasound, appendicitis
Document type:
Research study
Organization / Institution:
Multiple medical institutions
Author:
Quillin et al., Patriquin et al., Lim et al., Pinto et al., Gutierrez et al., Kessler et al.
Target audience:
Medical professionals, radiologists
Period of validity:
Not specified
Date of approval:
Not specified
Date of changes:
Not specified
Title:
Doppler Effect
Type of document:
Educational worksheet
Subject:
Physics
Topic:
Doppler Effect and observed frequency
Educational level:
Secondary education
Purpose:
Calculation of observed frequency in relative motion
Physical constant provided:
Speed of sound in air (343 m/s)
Additional constant provided:
Speed of sound in water (1482 m/s)
Measurement units:
m/s, Hz, MHz, mph
Year:
2026
Region / City:
Not specified
Type of document:
Roster
Organization:
Sports Team
Coaches:
Tami Doppler, Lexi Heinle, Cadence Kostelecky, Callie Bosch, Aaliya Kambeitz
Players:
Makena Helbling, Gracious Alteros, Bayah Goerdt, Brynlee Peterson, Jenna Diede, Jade Linaras, Evelyn Rampton, Grace Rampton, Odarkor Pearson, Kyla Dukart, Rilke Warner, Iris Drewlo, Tasha Boswell, Harper Wiles, Olivia Hammond, Esther Bello, Ivy Elston, Anna Eberhart, Lexus Koch, Brynlee Zimmerman, Annaley Keller, Nova Galusha, Cohen Davidson, Scarlett Moch, Macy Friez, Elyse Clement, Stella Friez, Iris Hager, Malaysia Jacob, Dru Gossett, Nora Kost, Everly Lindsay, Kyrie Folendorf, Harper Berquist, Emma Cullen, Addison Lang, Oliviana Hale, Rose Carlson, Isabella Guerrero, Rebecca Zent, Molly Merkel, McKenna Nunez, Macie Weigel, Zukhra Astanova, Annistyn Quam, Skylee Norton, Teagan Westbrook, Tatum Westbrook, Sophia Johnson, Kora Lawler, Talyaned Quinone, Mya Berg, Molly Kieson, Quincy Kuball, Leerae Hale, Kyeri Poitra, Olivia Berseth, Maggie Kosel, Ella Dockter, Eva Parent, Laci Ziegler, Maggie Ingold, Dru Cote, May Sakauskas, Zulixamar Curbelo, Berklee Black, Nellie Toma, Hanna Schafer, Audrey Dowd, Avery Schafer, Olivia Keller, Emma Keller, Katie Dethloff, Kru Kudrna, Lydia Podoll, Morgan Mehrer, Avery Ekstrom, Harper Kuether, Aubrey Johnson, Lauren Gustafson, Emerson Decker, Hadlee Kobilansky, Savanna Morgan, Kenley Allbee, Alana Carr-Nokin, Piper Lennick, Iris Falcon, Brynlee Monson, Ellie Monson, Olivia Sahli, Harper French, Nora Malsam, Tenley Spah, Maebry Van Duyne, Brea Skoglund, Amelia Dutchak, Emerson Davis, Reagan Culstad, Eliana Duppong, Addyson Erickson, Kaya Schaeffer, Olivia Craigmile, Bhadra Sudeesh
Document context:
Roster list of players and coaches for a sports team including full player names grouped under each coach.
Year:
2026
Subject:
Astronomy, Doppler Effect, Stellar Spectra
Document Type:
Assessment / Exam Questions
Institution:
Educational Institution / Astronomy Course
Target Audience:
Students in introductory astronomy
Key Concepts:
Doppler shift, redshift, blueshift, absorption and emission spectra, stellar motion
Number of Questions:
25
Data Included:
Tables of observed wavelengths, spectra diagrams
Context:
Includes analysis of star and gas cloud spectra to determine motion relative to Earth
Year:
2016
Volume:
1
Issue:
1
Pages:
xx-xx
ISSN (Print):
2477-5959
ISSN (Online):
2477-8451
Type of document:
Research article
Field:
Physics education
Institution:
Pattimura University, Ambon, Indonesia
Authors:
Jamaludin, John Rafafy Batlolona
Target audience:
High school physics students, educators, researchers
Keywords:
Concept understanding, Problem-based learning, Doppler effect
Date received:
March 1, 2016
Date revised:
March 15, 2016
Date accepted:
March 30, 2016
Methodology:
Experimental study with control and experimental groups, independent sample T-test
Participants:
58 students of class 11 science major at Christian Senior High School Ambon
Year:
2015
Region / City:
London, UK
Topic:
Fetal and neonatal echocardiography
Document Type:
Research Article
Authors:
Dr. Olga Patey, Professor Julene S. Carvalho, Professor Basky Thilaganathan
Target Audience:
Medical professionals, researchers
Period of Study:
2012–2015
Approval Date:
2012
Modification Date:
Not specified
Keywords:
fetal heart, fetal echocardiography, myocardial deformation, neonatal echocardiography, speckle tracking, tissue Doppler imaging, repeatability, reproducibility
Context Description:
The document evaluates the inter-vendor reproducibility and observer repeatability of TDI and STE measurements in normal term fetuses and neonates, emphasizing the challenges in comparing echocardiographic findings across different ultrasound systems.
Year:
2023
Region / City:
Virginia
Subject:
Inclusive Education, Early Childhood Education
Document Type:
Training Description
Organization:
Virginia Department of Education
Author:
Dr. Elena Soukakou
Target Audience:
School division/program leaders, early childhood educators
Effective Period:
Not specified
Approval Date:
Not specified
Amendment Date:
Not specified
Year:
2024
Region / City:
Virtual
Topic:
Scientific Research, Observer Forms
Document Type:
Workshop Paper
Organization:
SIOFA Secretariat
Audience:
Scientific Committee, SIOFA Participants
Period of Validity:
November 2024
Approval Date:
Not specified
Date of Changes:
Not specified
Confidentiality:
Public
Context:
A workshop paper detailing the structure and submission guidelines for Scientific Observer Forms to be used within the SIOFA framework.
Year:
2024
Region / city:
International Convention Area
Subject:
Transshipment Monitoring
Document Type:
Report
Organization:
ICCAT
Author:
ROP-Transhipment implementing consortium
Target Audience:
ICCAT Member States, Fisheries Monitoring Bodies
Period of Effect:
2024
Approval Date:
Not specified
Date of Changes:
Not specified
Year:
2025
Region / City:
Eastern Atlantic and Mediterranean
Theme:
Fisheries Management
Document Type:
Report
Organization:
ICCAT Secretariat
Author:
ICCAT Secretariat
Target Audience:
ICCAT CPCs, Fisheries Management Authorities
Period of Validity:
2025
Approval Date:
16 June 2025
Date of Amendments:
None
Contextual description:
A report documenting the implementation of the ICCAT Regional Observer Programme for bluefin tuna monitoring in the eastern Atlantic and Mediterranean in 2025, focusing on vessel and farm observer deployments, compliance, and operational challenges.
Year:
2025
Region / City:
Global
Topic:
Scientific Observer Programs, Fishing, Fisheries Management
Document Type:
Report
Institution:
ICCAT Secretariat
Author:
ICCAT Secretariat
Target Audience:
CPCs, Fisheries Managers, Policy Makers
Period of Validity:
Ongoing
Approval Date:
Not specified
Date of Changes:
Not specified
Year:
1925
Region / city:
United Kingdom
Topic:
Military history, Air defence
Document type:
Historical overview
Organization:
Royal Observer Corps
Author:
Not specified
Target audience:
Researchers, military historians, general public
Period of activity:
1917-1945
Approval date:
Not specified
Date of changes:
Not specified
Year:
2024
Region / City:
Salina, Kansas
Topic:
Disability Services, Community Outreach, Employment Support
Document Type:
Newsletter
Organization:
Independent Connection, Inc.
Author:
Independent Connection, Inc.
Target Audience:
People with disabilities, caregivers, school personnel, employers, youth (ages 10-24)
Period of Validity:
Spring 2024
Approval Date:
April 2024
Modification Date:
N/A
Organization:
Western Missouri Medical Center
Department:
Education Department
Location:
Warrensburg, Missouri
Address:
403 Burkarth Road, Warrensburg, Missouri 64093
Document Type:
Application packet
Purpose:
Job Shadow / Observer program participation
Minimum Age Requirement:
16 years
Eligibility:
High school or college students, or applicants to a college program
Required Documentation:
Application form, school representative recommendation, confidentiality agreement, HIPAA agreement, code of conduct acknowledgment, health statement, immunization and TB test records
Health Requirements:
Current rubella immunity and negative TB skin test within previous 12 months
Approval Authority:
Department Director and Education Office
Contact Person:
Jennifer Evert, LPN, Education Coordinator
Confidentiality Scope:
Patient medical records and protected health information
Dress Code:
Professional attire; no jeans or open-toe shoes
Submission Method:
Hand delivery to Main Lobby desk volunteers
Year:
2026
Region / city:
United Kingdom
Theme:
Emergency Medicine
Document type:
Application form
Organization / institution:
RCEM
Author:
RCEM
Target audience:
International medical graduates
Period of validity:
September/October 2026
Approval date:
Not specified
Modification date:
Not specified
Year:
2023
Region / City:
Global
Subject:
Fisheries, International Collaboration
Document Type:
Working Group Nomination List
Organization:
Various international fisheries organizations
Author:
Michael D. Tosatto, others
Target Audience:
Fisheries professionals, stakeholders in international fisheries management
Period of Action:
Ongoing
Approval Date:
N/A
Modification Date:
N/A
Year:
2008
Region / District:
[To be filled based on Mitsi and Dzongkhag]
Document Type:
Official Government Order
Authority:
Election Commission of Bhutan
Appointee:
[Name of Mr./Ms. …………………………………]
Position:
Returning Officer / National Observer
Scope of Responsibility:
Supervision of elections in the designated constituency
Legal Basis:
Sections 40(a) and 59 of the Election Act of the Kingdom of Bhutan
Relevant Materials:
Electoral Laws, By-laws, Handbook for Returning Officers, Strategy for National Council Elections, Rules and Regulations, Guidelines, Notifications, Orders, Manuals, Electronic Voting Machine procedures
Effective Period:
Until further Notification or Relieving Order
Signatory:
Chief Election Commissioner of Bhutan
Note:
Year
Theme:
Fisheries Management
Document Type:
Job Description
Organization / Institution:
Australian Fisheries Management Authority (AFMA)
Year:
2021
Event:
9th Meeting of the SPRFMO Commission
Date of meeting:
25 January – 2 February 2021
Format of meeting:
Virtual meeting
Document reference:
COMM9-PROP13
Submitting country:
Republic of Peru
Related measure:
CMM 16-2019 on the SPRFMO Observer Programme
Type of document:
Policy proposal to amend a conservation and management measure
Organization:
South Pacific Regional Fisheries Management Organisation (SPRFMO)
Subject:
Fisheries governance and observer programme requirements
Geographic scope:
SPRFMO Convention Area in the South Pacific Ocean
Affected vessels:
Fishing vessels flying the flag of a Member or Cooperating non-Contracting Party
Proposed exemption:
Fishing vessels of no more than 15 meters in length
Legal basis referenced:
Article 19(2)(b) of the SPRFMO Convention
Associated frameworks:
United Nations Sustainable Development Goal 14; FAO Code of Conduct for Responsible Fisheries
Data obligations referenced:
CMM 02-2020 Collection, Reporting, Verification and Exchange of Data
Date received:
05 December 2020