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From a tuning fork, to a speaker in slow motion, this is a close look at what sound is. Both linear and spherical wave fronts are animated. The human audible range is demonstrated. Want Lecture Notes? This is an AP Physics 1 Topic.
Content Times:
0:15 The tuning fork
1:52 Concert pitch
2:29 Speaker demonstration
3:43 Compression and rarefaction
5:11 Linear wave fronts
5:44 Spherical wave fronts
6:53 What is sound? (summary)
7:36 Zero net displacement
8:43 Pressure amplitude
9:37 Human audible range demo
11:23 Visualizing wave forms
Next Video: Doppler Effect Demonstrations and Animations
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Previous Video: How Is This Standing Wave Possible?
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Thank you to Christopher Becke and Cameron Vongsawad for being my Quality Control Team for this video.
Found by Flipping Physics in Sound Waves
October 29, 2019 at 06:28 PM
Ages: 9 - 18
License: Proprietary
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Stress is our natural reaction to physical or emotional pressure, encompassing everything from too much work to being tortured. But how does stress affect our memory, mood and thinking? And what effect does stress have on our overall health? Vincent Walsh and a panel of experts investigate. (50:40)
Found by teresahopson in Stress Management
January 30, 2019 at 05:57 PM
Ages: 17 - 18
License: Proprietary
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In this video, teenage students will be introduced to "The Interrogation of Gabriel James" by Charlie Price. In a harshly-lit interrogation room in Billings, Montana, 14-year-old Gabriel James is under pressure to reveal key facts in a double homicide, for which he is the only witness. But is Gabe just an innocent bystander in these killings, or does he have a few secrets of his own? As the layers of this suspenseful, non-linear story unfold, you'll be shocked to learn what Gabe knows, and what he doesn't, and how these details are fated to combust in this story's explosive conclusion. This is a great resource to motivate upper grade readers. (1:31)
Found by porter1526 in 60 Second Recap Series
September 30, 2011 at 07:22 PM
Ages: 13 - 18
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Lesson ObjectiveStudents duplicate a "magic trick" and explain the science behind it. Questions to ConsiderWhy does Mr. Haigh first demonstrate but not explain the lab?Notice how the lab requires students to apply their knowledge of science to a novel taskWhat do students learn about pressure and density as it applies to liquids and gases?
(6mins)
Found by Mrs Jefferies in Physics
January 21, 2012 at 03:46 PM
Ages: 3 - 18
License: Public Domain
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James Meredith
From havefunwithhistory.com, produced by Have Fun With History
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James H. Meredith (born June 25, 1933) is an American civil rights movement figure. He was the first African American student at the University of Mississippi, an event that was a flash point in the American civil rights movement.Motivated by the broadcast of President John F. Kennedy's inaugural address (which did not mention civil rights per se) Meredith decided to apply his democratic rights and then made the ultimate decision to apply to the University of Mississippi. Meredith's goal was to put pressure on Kennedy administration. (5min)
Found by Mrs Jefferies in Civil Rights Movement
November 10, 2011 at 10:57 PM
Ages: 12 - 18
License: Proprietary
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Views: 887 |
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Video interview of experts. The National Science Foundation hosts Daniel Sheer, president of Hydrologics Inc., as he leads a panel in a discussion about new technology and how to ensure that fresh water remains safe and plentiful. From leaky municipal water systems to growing populations, water supplies in the U.S. face increasing pressure. As freshwater supplies decrease, the U.S. must find a way to ensure safe and plentiful water for the future. Covers current topics of concern. Grades 9-12. 57:46 min.
Found by laneyk in Water Pollution & Conservation
August 4, 2009 at 10:22 AM
Ages: 13 - 18
License: Proprietary
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This two minue video is a diary of a student teacher and her insights into the pressure of being a a student teacher in California. The lessons here is that you are not alone and be prepared.
Found by freealan in For Teachers and Parents
July 16, 2010 at 01:42 PM
Ages: 15 - 18
License: Undetermined
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The equations for the harmonic frequencies of open and closed pipe wind instruments are derived. An animation of a longitudinal standing wave pattern in a closed pipe is shown. Displacement and pressure nodes and antinodes are shown. Want Lecture Notes? This is an AP Physics 1 Topic.
Content Times:
0:10 Harmonic frequencies of stringed instruments
0:52 Open pipe and closed pipe wind instruments
1:46 Open pipe standing wave patterns
2:47 Open pipe natural frequencies
3:50 Closed pipe - first harmonic
4:49 Closed pipe - second harmonic
5:43 Closed pipe - third harmonic
6:42 Closed pipe natural frequencies
7:21 Displacement and pressure nodes and antinodes
9:07 Closed pipe standing wave pattern animation
10:24 The adjusted length of wind instruments
Next Video: Electric Charge, Law of Charges, and Quantization of Charge
https://www.flippingphysics.com/charge.html
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Stringed Instrument Frequencies
Please support me on Patreon!
Thank you to Christopher Becke for being my Quality Control Team for this video.
Found by Flipping Physics in Sound Waves
December 3, 2019 at 05:36 PM
Ages: 13 - 18
License: Proprietary
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Gases are everywhere, and this is good news and bad news for chemists. The good news: when they are behaving themselves, it's extremely easy to describe their behavior theoretically, experimentally and mathematically. The bad news is they almost never behave themselves.
In this episode of Crash Course Chemistry, Hank tells how the work of some amazing thinkers combined to produce the Ideal Gas Law, how none of those people were Robert Boyle, and how the ideal gas equation allows you to find out pressure, volume, temperature or number of moles. You'll also get a quick introduction to a few jargon-y phrases to help you sound like you know what you're talking about. (09:03)
Found by teresahopson in Gas Laws
May 7, 2013 at 07:14 PM
Ages: 11 - 18
License: Proprietary
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Teacher-Created Video- Middle school Writing teacher Dena Harrison gives her views on what makes a successful writer and how teachers can deal with pressure to teach only to the test. (03:17)
Found by tinag1974 in Teaching the Writing Process
August 13, 2009 at 08:35 AM
Ages: 18 - 18
License: Proprietary
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Views: 797 |
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Blood pressure forces a watery fluid from capillary walls into tissue spaces. Most of this fluid reenters the capillaries, while the remainder passes into adjoining lymphatic vessels as lymph. Red cells remain in the blood capillaries and some white cells pass out to act as scavengers. Some materials flow out of the capillaries by way of diffusion, other materials through pores of varying sizes at junctions between capillary cells. Short animated video takes you through the process. Grades 7-12. 33 sec.
Found by laneyk in Blood & Lymph
August 19, 2009 at 09:09 AM
Ages: 15 - 18
License: Undetermined
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Views: 783 |
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This is a new version of the classic Guinea and Feather experiment. This apparatus allows you to view a paper disc and a metal disc falling side by side in two tubes. You can see them fall at normal air pressure and after the air has been removed. (02:43)
Found by tyler.arnold in Gravity
August 28, 2012 at 08:35 PM
Ages: 13 - 18
License: Proprietary
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This demonstrates the ideal gas law (PV=nRT) which states that a drop in temperature with fixed mass and external pressure will result in a smaller volume, and increasing the temperature will increase the volume (01:19).
Found by tyler.arnold in Gas Laws
September 3, 2012 at 08:46 PM
Ages: 15 - 18
License: Public Domain
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Views: 680 |
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In this video, teenage students will be introduced to "Efrain's Secret"by Sofia Quintero. Efrain has always been the good boy, the good son. While his friends are out dealing drugs or hooking up with girls, he's busy being Mr. Responsible—all so he can get into an Ivy League school and get out of the ghetto. But the pressures of being Mr. Perfect are about to catch up with Efrain in a big way. What's an upwardly-motivated teen—without the money to get where he wants to go—to do? In Efrain's case, the enticements of quick drug money prove too much to resist. Pretty soon, Efrain is raking in the cash ... and the consequences. And his life, and the lives of those he loves, will never be the same. This book does have adult content. This is a great resource to motivate upper grade readers. (1:26)
Found by porter1526 in 60 Second Recap Series
September 30, 2011 at 07:00 PM
Ages: 14 - 18
License: Proprietary
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This is a very interesting physics demonstration built to visualize the concept of standing waves. Sound from a CD player is used to create pressure nodes in a tube of flammable gas. Three different songs are played and the different frequencies in each make different shaped waves. The video consists of the experiment only with no explanation, therefore teacher explanation would be needed. (02:22)
Found by tyler.arnold in Sound Waves
August 16, 2012 at 08:28 PM
Ages: 13 - 18
License: Public Domain
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Views: 603 |
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In November 1958, Soviet Premier Nikita Khrushchev demanded that Western forces pull out of West Berlin in six months. On March 16, 1959, in a radio and television report to the American people, President Eisenhower speaks of the escalating Cold War tensions over Berlin, stressing that the United States will not give in to pressure from the USSR. (01:12)
Found by CourtneyMorrison in Eisenhower Speeches
May 27, 2012 at 06:13 PM
Ages: 13 - 18
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At 4 a.m. on March 28, 1979, the worst accident in the history of the U.S. nuclear power industry begins when a pressure valve in the Unit-2 reactor at Three Mile Island fails to close. Cooling water, contaminated with radiation, drained from the open valve into adjoining buildings, and the core began to dangerously overheat. (01:00)
Found by CourtneyMorrison in March 21-31
September 10, 2012 at 10:54 PM
Ages: 12 - 18
License: Proprietary
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This video demonstrates some practical ideas about making Zoom lessons more student-centered. It suggests two great tools that combine really effectively with Zoom and can help to take pressure off the teacher and can lead into breakout room activities. (21:49)
Found by teresahopson in Misc. Zoom
May 3, 2020 at 03:18 PM
Ages: 18 - 18
License: Proprietary
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Views: 487 |
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The Brazilian army is continuing its battle against some of the fires that are destroying large swathes of the Amazon rainforest. The fires have also spread to Bolivia. Brazilian President Jair Bolsonoro has come under immense international pressure to take action against the fires. European leaders have threatened ending a huge trade deal with Brazil and other South American countries unless action is taken. G7 leaders agreed to a 20 million dollar fund to offer financial and technical assistance to those countries fighting the Amazon fires. (02:09)
Found by andrewvanzyl in Deforestation
August 26, 2019 at 10:50 AM
Ages: 10 - 18
License: Proprietary
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Views: 315 |
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As the human population continues to grow, so does our impact on the environment. In fact, recent research has shown that three-quarters of Earth’s land surface is under pressure from human activity. In this short film, spoken word artist Prince Ea makes a powerful case for protecting the planet and challenges the human race to create a sustainable future. Winner of the Film4Climate competition organized by the Connect4Climate Program of the World Bank. (04:23)
Found by teresahopson in Solutions to Global Warming
March 29, 2020 at 10:27 AM
Ages: 12 - 18
License: Proprietary
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Views: 277 |
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This plan is not recommended for children or athletes. This is NOT medical advice from WatchKnowLearn, but may be of value to you. Ayurveda explains that the root cause of any disease is the accumulation of toxins in the body, whether it's excess weight, high blood pressure, diabetes, cholesterol, asthma, PCOD, stones, cysts, or any other chronic disease. No disease can survive in a body that is clean internally. This video explains three powerful methods to remove these toxins, cleanse your body and consequently, lose weight, cure disease, clear the skin and gain more energy. (21:45)
Found by teresahopson in Nutrition and Eating Habits
December 26, 2018 at 02:04 PM
Ages: 18 - 18
License: Proprietary
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I went on a Sacramento Splash Vernal Pools Critter Walk during the wet season. We saw: Frying Pan Poppies,Gopher mounds, Vole runs, a baby (juvenile) Yellow-bellied Racer snake, Flatworms (Platyhelminthes), Dragonfly larvae, Copepods, Water fleas, Aquatic snails, Aquatic beetles, Tadpoles, Pacific Chorus Frog (also known as Sierran Treefrog), Mima mounds, Piezometers - used to measure water pressure.
Sacramento Splash helps preserve California's Vernal Pools by increasing public awareness through educational programming for children, such as field trips and these walks. (02:48)
Found by teresahopson in Botany
March 30, 2019 at 04:07 PM
Ages: 4 - 12
License: Undetermined
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This plan is not recommended for children or athletes. This is NOT medical advice from WatchKnowLearn, but may be of value to you.
Want to get rid of diabetes, high blood pressure, thyroid, gastritis, acne, hair fall, knee pain, sinus, obesity or any other chronic disease? Or simply want to lose weight fast? Follow the four food principles and diet plan discussed in this video, specifically for India. By changing to a living foods, water rich, plant-based diet, any disease may be reversed. (19:47)
Found by teresahopson in Nutrition and Eating Habits
December 26, 2018 at 02:25 PM
Ages: 18 - 18
License: Proprietary
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The Indians in the South were constantly under pressure from white settlers. Only the federal government had the ability to protect the Indians. President Jackson removed that federal protection. He then proceeded to pass the Indian Removal Act to force the Native American population to move West of the Mississippi. (02:15)
Found by teresahopson in The Age of Jackson 1828-1848
May 23, 2021 at 11:04 AM
Ages: 10 - 18
License: Proprietary
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There’s a lot of pressure these days to break up public school systems and make it more like a private free market of education. So, what have been the arguments for unified public schooling in the past? What role did public schools have in defining America? This video covers the main persuasive arguments for public school systems. (09:34)
Found by teresahopson in July 16-31
July 29, 2021 at 06:49 PM
Ages: 15 - 18
License: Proprietary
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