# Search Results (1960)

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• Mathematical Modeling
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How did scientists figure out the structure of atoms without looking at ...

How did scientists figure out the structure of atoms without looking at them? Try out different models by shooting light at the atom. Check how the prediction of the model matches the experimental results.

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Chris Malley
Dubson, Michael
Gratny, Mindy
Kathy Perkins
Malley, Chris
McKagan, Sam
Michael Dubson
Mindy Gratny
Perkins, Kathy
PhET Interactive Simulations
Sam McKagan
Wieman, Carl
Conditions of Use:
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Blast a Buick out of a cannon! Learn about projectile motion by ...

Blast a Buick out of a cannon! Learn about projectile motion by firing various objects. Set the angle, initial speed, and mass. Add air resistance. Make a game out of this simulation by trying to hit a target.

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Dubson, Michael
Michael Dubson
PhET Interactive Simulations
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Learn about the physics of resistance in a wire. Change its resistivity, ...

Learn about the physics of resistance in a wire. Change its resistivity, length, and area to see how they affect the wire's resistance. The sizes of the symbols in the equation change along with the diagram of a wire.

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Dubson, Michael
Gratny, Mindy
Michael Dubson
Mindy Gratny
PhET Interactive Simulations
Conditions of Use:
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Explore forces, energy and work as you push household objects up and ...

Explore forces, energy and work as you push household objects up and down a ramp. Lower and raise the ramp to see how the angle of inclination affects the parallel forces acting on the file cabinet. Graphs show forces, energy and work.

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Danielle Harlow
Harlow, Danielle
Kathy Perkins
Loeblein, Trish
Perkins, Kathy
PhET Interactive Simulations
Reid, Sam
Sam Reid
Trish Loeblein
Woieman, Carl
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Students use a hurricane tracking map to measure the distance from a ...

Students use a hurricane tracking map to measure the distance from a specific latitude and longitude location of the eye of a hurricane to a city. Then they use the map's scale factor to convert the distance to miles. They also apply the distance formula by creating an x-y coordinate plane on the map. Students are challenged to analyze what data might be used by computer science engineers to write code that generates hurricane tracking models. Then students analyze a MATLAB® computer code that uses the distance formula repetitively to generate a table of data that tracks a hurricane at specific time intervals. Students come to realize that using a computer program to generate the calculations (instead of by hand) is very advantageous for a dynamic situation like tracking storm movements. Their inspection of some MATLAB code helps them understand how it communicates what to do using mathematical formulas, logical instructions and repeated tasks. They also conclude that the example program is too simplistic to really be a useful tool; useful computer model tools must necessarily be much more complex.

Subject:
Engineering
Atmospheric Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering NGSS Aligned Resources
Author:
Armando Vital, K. B. Nakshatrala, Justin Chang, Fritz Claydon, Rodrigues, Stuart Long
National Science Foundation GK-12 and Research Experience for Teachers (RET) Programs,
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The chapter describes the challenges of tropical weather forecasting. We examine types ...

The chapter describes the challenges of tropical weather forecasting. We examine types of observations and weather analysis techniques used by tropical forecasters. Those analysis tools are applied to examples of tropical synoptic weather systems as well as mesoscale analysis and nowcasting. The last three sections focus on numerical weather prediction (NWP) including: the fundamentals, data assimilation, comparisons of statistical and dynamical models, ensemble techniques, cumulus convection in NWP, tropical cyclone prediction, and methods of forecast verification and validation. We have special focus sections on Australian-Indonesia Monsoon weather and interviews with forecasters from the National Hurricane Center (audio in English and Spanish), and Tropical Cyclone Centre Météo-France/La Réunion (text in English and French).

Subject:
Atmospheric Science
Material Type:
Module
Provider:
COMET MetEd Collection
Author:
COMET
Conditions of Use:
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This module looks at the common challenges and tools with respect to ...

This module looks at the common challenges and tools with respect to verification of quantitative precipitation forecasts (QPF). Through the use of rich illustrations, animations, and interactions, this module provides an introduction to a variety of methods and approaches for assessing the quality of QPFs. The module examines the need for, and the challenges of verifying precipitation forecasts. An overview is then presented of three verification programs available to most NWS forecast offices: the Hydrometeorological Prediction Center (HPC) verification, the National Precipitation Verification Unit (NPVU), and the Boise Verify Program (BOI Verify). For each of these programs, an introduction is provided covering the strengths and weaknesses as well as specific products available. Case examples are provided where appropriate to illustrate the application of the products in the field. Additional NWS verification tools under development are introduced: the Interactive Verification Program (IVP) and the Ensemble Verification System (EVS).

Subject:
Atmospheric Science
Material Type:
Module
Provider:
COMET MetEd Collection
Author:
COMET
Conditions of Use:
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Build your own system of heavenly bodies and watch the gravitational ballet. ...

Build your own system of heavenly bodies and watch the gravitational ballet. With this orbit simulator, you can set initial positions, velocities, and masses of 2, 3, or 4 bodies, and then see them orbit each other.

Subject:
Astronomy
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Danielle Harlow
Dubson, Michael
Excellence Center of Science and Mathematics Education at King Saud University
Gratny, Mindy
Harlow, Danielle
Michael Dubson
Mindy Gratny
National Science Foundation
O'Donnell Foundation
PhET
PhET Interactive Simulations
The William and Flora Hewlett Foundation
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Learn Motion of Earth, Sun, Moon & Satellites in Orbit : Astronomical ...

Learn Motion of Earth, Sun, Moon & Satellites in Orbit : Astronomical Time Standards and Time Conversions, Positional Astronomy - earth orbit around sun, Position of Sun on Celestial Sphere, Position of Earth on Celestial Sphere, Satellites Orbit Elements - ephemeris, keplerian elements, state vectors, Satellites Motion around Earth - orbital & positional parameters, Satellite Pass for Earth Station - prediction of ground trace are addressed.

Subject:
Applied Science
Physical Science
Material Type:
Simulation
Provider:
OER Commons
Provider Set:
Open Author Resources
Author:
RC Chakraborty
Conditions of Use:
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The NCEP Marine Modeling and Analysis Branch (MMAB) Ensemble Global Ocean Wave ...

The NCEP Marine Modeling and Analysis Branch (MMAB) Ensemble Global Ocean Wave Forecast System (EGOWaFS) provides five-day forecasts of global winds, wind wave and swell conditions in probabilistic terms. This product became available early in 2007 both through an NCEP non-operational web page and, for raw data, through FTP for use by marine forecasters at NWS WFOs and other locations. The data from the EGOWaFS can be used in a number of ways, including: * As input to probabilistic marine forecasts for wind waves and swell * As input to a local wave ensemble, such as Simulated Waves Nearshore (SWAN) * As input to develop probabilistic forecasts for rip current development This webcast has been developed to introduce the EGOWaFS to the marine forecasting community. Topics discussed include: The unique basis for ensemble prediction of ocean waves Graphics of EGOWaFS product output and their interpretation Case examples showing examples of EGOWaFS, including: Potential for EGOWaFS forecast bias resulting from systematic errors in wind forcing, Use of EGOWaFS data to provide boundary conditions for local near-shore wave models, and Application of EGOWaFS data to create a probabilistic forecast for the occurrence of rip currents.

Subject:
Oceanography
Material Type:
Module
Provider:
COMET MetEd Collection
Author:
COMET
Conditions of Use:
Remix and Share
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In this group activity, learners use some common objects and work together ...

In this group activity, learners use some common objects and work together to simulate the Coriolis effect. During the challenge, learners make predictions and test different scenarios. This resource includes background information about the Coriolis effect and helpful hints.

Subject:
Atmospheric Science
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Eric Muller
The Exploratorium
Conditions of Use:
Remix and Share
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This web page features a collection of Easy Java Simulations developed by ...

This web page features a collection of Easy Java Simulations developed by secondary teachers for use in introductory high school physics courses. Topics include astronomy, momentum and collision, projectile motion, Gauss's Law and electric field, special relativity, and more. Each simulation is accompanied by a standards-based lesson plan and printable student guides. Users may run the simulations as a Java applet or may directly download a jar file version. The materials in this collection were created with Easy Java Simulations (EJS), a modeling tool that allows users without formal programming experience to generate computer models and simulations. To modify or customize the model, <b><i>See Related Materials</b></i> for detailed instructions on installing and running the EJS Modeling and Authoring Tool. This resource is part of Project ITOP (Improving the Teaching of Physics), a graduate program offered at University of Massachusetts-Boston. The archived computer models are hosted and maintained as part of the BU Physics Simulation collection.

Subject:
Physics
Material Type:
Simulation
Provider:
Boston University
Author:
Andrew Duffy
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A collaboration between the National Aeronautics and Space Administration (NASA) and the ...

A collaboration between the National Aeronautics and Space Administration (NASA) and the CK-12 Foundation, this book provides high school mathematics and physics teachers with an introduction to the main principles of modeling and simulation used in science and engineering. An appendix of lesson plans is included.

Subject:
Engineering
Physics
Material Type:
Lesson Plan
Teaching/Learning Strategy
Textbook
Provider:
CK-12 Foundation
Provider Set:
CK-12 FlexBook
Conditions of Use:
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This lesson presents 13 recorded presentations from the 29 July–2 August, 2013 ...

This lesson presents 13 recorded presentations from the 29 July–2 August, 2013 offering of the Climate Variability and Change Virtual Course (CVCVC). This five-day live facilitated online course provided an extensive background on a range of climate variability and change topics with an emphasis on developing communication skills for challenging climate topics. The topics covered in this course, while aimed primarily at NOAA operational climate services delivery staff will also be helpful for others who already possess a basic level of understanding of climate science. Presentations include: Weather vs. Climate — Derek Arndt, National Climatic Data Center, NOAA Climate Variability — Matt Newman, NOAA Earth System Research Laboratory Climate Science Communication — Derek Arndt, National Climatic Data Center, NOAA The El Niño/ Southern Oscillation (ENSO) Cycle — Michelle L'Heureux, Climate Prediction Center, NOAA/National Weather Service NOAA's Atlantic Hurricane Season Outlooks — Gerry Bell, Climate Prediction Center, NOAA/National Weather Service The Madden-Julian Oscillation — Jon Gottschalk, Climate Prediction Center, NOAA/National Weather Service Drought: Science, Monitoring and Early Warning — Roger Pulwarty, National Integrated Drought Information System (NIDIS), Earth System Research Laboratory/NOAA Climate Prediction Center Outlooks — Mike Halpert, Climate Prediction Center, NOAA/National Weather Service Climate.gov: Information, Products, and Tools — David Herring, Climate Program Office, NOAA/National Weather Service Climate Communication Skills for Decision-support Audiences — Susan Buhr, Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Climate Change Science — Wayne Higgins, Climate Program Office, NOAA Climate Change Impacts — Peter Backlund, University Corporation for Atmospheric Research Managing Marine and Coastal Resources in a Changing Climate — Kenric Osgood, Marine Ecosystems Division, NOAA, NMFS Please Note: There are no quizzes available on MetEd for these materials. However, National Weather Service users may complete a quiz for each lecture and receive credit in the NWS Learning Center. The quizzes may be found in the NWS Learning Center by searching for "Climate Variability and Change Lecture". Alternatively, a learning plan containing quizzes for all 13 lectures is available on the NWS Learning Center's COMET Page.

Subject:
Atmospheric Science
Material Type:
Module
Provider:
COMET MetEd Collection
Author:
COMET
Conditions of Use:
Rating

Streamflow routing provides a set of methods for describing and predicting the ...

Streamflow routing provides a set of methods for describing and predicting the movement of water from one point to another along a river. Typically, this process involves predicting the shape of a hydrograph downstream from a particular location in a channel, reservoir, or lake. This first requires an understanding of the basic flow regimes and how water is stored and released within a channel. From there, information and calculations based on flow and channel bed characteristics are implemented in hydrologic routing methods, which are storage-based, and hydraulic routing methods, which utilize fully-dynamic equations. This module offers a thorough introduction to these routing concepts and processes through illustrations, animations and sample exercises, with a primary focus on hydrologic routing methods.

Subject:
Hydrology
Material Type:
Module
Provider:
COMET MetEd Collection
Author:
COMET
Conditions of Use:
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The role of unit hydrograph theory in the flood prediction process is ...

The role of unit hydrograph theory in the flood prediction process is to provide an estimate of streamflow that results from a given amount precipitation. A unit hydrograph shows the temporal change in flow, or discharge, per excess unit of precipitation runoff. This module offers a thorough introduction to the use of unit hydrographs and the application of unit hydrograph theory in flood prediction. Key terminology and assumptions, the process of creating a unit hydrograph and application of unit hydrograph theory to forecast situations are all explored through comprehensive animations and interactions.

Subject:
Atmospheric Science
Material Type:
Module
Provider:
COMET MetEd Collection
Author:
COMET
Conditions of Use:
Rating

This module takes the learner through seven case studies of flash flood ...

This module takes the learner through seven case studies of flash flood events that occurred in the conterminous U.S. between 2003 and 2006. The cases covered include: * 30-31 August 2003: Chase & Lyon Counties, KS * 16-17 September 2004: Macon County, NC * 31 July 2006: Santa Catalina Mountains near Tucson, AZ * 25 December 2003: Fire burn area near San Bernardino, CA * 30 August 2004: Urban flash flood in Richmond, VA * 19-20 August 2003: Urban flash flood in Las Vegas, NV * 9 October 2005: Cheshire County, NH This module assists the learner in applying the concepts covered in the foundation topics of the Basic Hydrologic Sciences course. Some of the specific topics pertinent to these cases are the physical characteristics that make a basin prone to flash floods, basin response to precipitation, flash flood guidance (FFG), the relationship between wildfire and flash floods, and the relationship between urban development and flash floods. Related topics brought out in the cases include radar quantitative precipitation estimation (QPE), the National Weather Service Flash Flood Monitoring and Prediction (NWS FFMP) products, debris flows, impounded water, and interagency communications. The core foundation topics are recommended prerequisite materials since this module assumes some pre-existing knowledge of hydrologic principles. In particular, the Runoff Processes and Flash Flood Processes modules contain material directly related to these cases.

Subject:
Atmospheric Science
Material Type:
Module
Provider:
COMET MetEd Collection
Author:
COMET
Conditions of Use:
Rating

The role of unit hydrograph theory in the flood prediction process is ...

The role of unit hydrograph theory in the flood prediction process is to provide an estimate of streamflow given the precipitation. A unit hydrograph shows the temporal change in flow, or discharge, per unit of runoff from excess precipitation. In other words, the unit hydrograph shows how the flow of a stream will be affected over time by the addition of one unit of runoff. This module offers a thorough introduction to the use of unit hydrographs and the application of unit hydrograph theory in flood prediction. Through use of rich illustrations, animations, and interactions, this module explains key terminology and assumptions, outlines the steps in creation of a unit hydrograph, examines the issues surrounding application of unit hydrograph theory, and discusses important considerations for forecasters.

Subject:
Atmospheric Science
Material Type:
Module
Provider:
COMET MetEd Collection
Author:
COMET
Conditions of Use:
Rating

Start a chain reaction, or introduce non-radioactive isotopes to prevent one. Control ...

Start a chain reaction, or introduce non-radioactive isotopes to prevent one. Control energy production in a nuclear reactor! (Previously part of the Nuclear Physics simulation - now there are separate Alpha Decay and Nuclear Fission sims.)

Subject:
Physics
Material Type:
Simulation
Provider:
Provider Set:
PhET Interactive Simulations
Author:
Blanco, John
Carl Wieman
Danielle Harlow
Harlow, Danielle
John Blanco
Kathy Perkins
LeMaster, Ron
McKagan, Sam
National Science Foundation
Noah Podolefsky
Perkins, Kathy
PhET Interactive Simulations
Podolefsky, Noah
Ron LeMaster
Sam McKagan
Wieman, Carl
Conditions of Use:
Remix and Share
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This professional development article identifies resources that show young learners (K-grade 5) ...

This professional development article identifies resources that show young learners (K-grade 5) how scientists study Earth's climate and make predictions. The online lessons either allow students to collect and analyze data or learn about tools and technologies that make data collection possible. The lessons are aligned with national content standards for science education. The article appears in the free, online magazine Beyond Weather and the Water Cycle, which examines the recognized essential principles of climate literacy and the climate sciences for elementary teachers and their students.

Subject:
Education
Mathematics
Physics
Material Type:
Data Set
Lesson Plan
Teaching/Learning Strategy
Provider:
Ohio State University
Ohio State University College of Education and Human Ecology
Provider Set:
Beyond Weather and the Water Cycle
Author:
Jessica Fries-Gaither
National Science Foundation