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Dorado Learning | K12 Sample Content | Rutherford's nuclear model of atom part1
Dorado Learning | K12 Sample Content | Rutherford's nuclear model of atom part1 Teacherflix 4 Views • 1 year ago

Dorado Learning has an exclusive range of products K-12 products. Our products are already used by over 100,000 students world wide. The range includes K-12 2D and 3D animation library of over 50,000 modules. The modules are structured in a molecular format so that they can be mapped with any curriculum easily.
Nuclear fission
Nuclear fission Teacherflix 3 Views • 1 year ago

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NUCLEAR FISSION: In our earlier session, we have learnt about nuclear process.Now let us learn about chain reaction in the nuclear process.A nuclear process in which a heavy nucleus, when bombarded with neutrons split into two nuclei of nearly equal mass along with release of enormous amount of energy is called as nuclear fission.In the above said process, every neutron can cause fission but along with the fission, it also releases 3 more neutrons on every fission reaction.Every neutron that is released can cause another fission reaction.Thus the three neutrons released in turn releases 9 neutrons.In the similar way, reaction continues and neutrons are built up in geometric progression and fission occurs till total uranium gets exhausted in a chain manner.This process is called as chain reaction and these reactions are called as Self-sustained series of fissions.The chain reaction: is a series of nuclear fissions whereby the neutrons produced in each fission cause additional fissions.There are two stages of chain reactions are there.Uncontrolled Chain reaction. Controlled Chain reaction. Uncontrolled chain reaction:In the chain reaction, there is no control on the number of fissions taking place and such reactions are called uncontrolled chain reaction.In this chain reaction more than one of the neutrons produced in a particular fission cause further fissions. So that the number of fissions increases very rapidly. Therefore an enormous amount of energy is released within a few millionths of a second and is released as a violent explosion. An average energy of about 200MeV Mega electron volts would be release per fission.Thus, an uncontrolled chain reaction can generate an incredible amount of energy within a very short time.This is actually what happens in an 'Atom Bomb'.Controlled chain-reaction:

Nuclear energy | Rita Baranwal | Energy Seminar
Nuclear energy | Rita Baranwal | Energy Seminar Teacherflix 1 Views • 1 year ago

Dr. Baranwal will address four key points about the (1) range of issues facing the existing fleet of nuclear power plants; (2) barriers and opportunities for the deployment and construction of advanced reactors, including small modular reactor designs enabled by the DOE’s Advanced Reactor Demonstration Program; (3) challenges and opportunities in the critical fuel cycle infrastructure; and (4) challenges and opportunities for global competitiveness of U.S. nuclear technology.

Speaker bio

Dr. Rita Baranwal serves as the Assistant Secretary for the Office of Nuclear Energy in the U.S. Department of Energy. Prior to her current role, Dr. Baranwal directed the Gateway for Accelerated Innovation in Nuclear (GAIN) initiative at Idaho National Laboratory.

Dr. Baranwal is a Fellow of the American Nuclear Society. She has a bachelor’s degree from Massachusetts Institute of Technology in materials science and engineering and a master’s degree and Ph.D. in the same discipline from the University of Michigan.
What Is Nuclear Fission? | Radioactivity | Physics | FuseSchool
What Is Nuclear Fission? | Radioactivity | Physics | FuseSchool Teacherflix 3 Views • 1 year ago

How does a nuclear reactor provide energy? What causes a nuclear meltdown? And how do we make this safe?

All of these questions are answered in this 'Radioactivity' video from The Fuse School GCSE / K12.

At Fuse School, teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. Our OER are available free of charge to anyone. Make sure to subscribe - we are going to create 3000 more!

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Understanding Tomorrow's Nuclear Energy Lecture Series
Understanding Tomorrow's Nuclear Energy Lecture Series Teacherflix 5 Views • 1 year ago

Nuclear Engineering: http://engineering.purdue.edu/NE
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#purdue #nuclearengineering #nuclearenergy

PRODUCTION OF ELECTRICITY FROM NUCLEAR ENERGY
PRODUCTION OF ELECTRICITY FROM NUCLEAR ENERGY Teacherflix 3 Views • 1 year ago

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7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customise the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use.

Nuclear power plants obtain the heat needed to produce steam through a physical process. This process, called fission, entails the splitting of atoms of uranium in a nuclear reactor. The uranium fuel consists of small, hard ceramic pellets that are packaged into long, vertical tubes.

What Is Nuclear Radiation? | Radioactivity | Physics | FuseSchool
What Is Nuclear Radiation? | Radioactivity | Physics | FuseSchool Teacherflix 1 Views • 1 year ago

Some people think radiation is a scary word but really is just the movement of particles or waves through space, learn all about nuclear radiation in this GCSE / K12 video.

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NUCLEAR REACTOR - ATOMIC PILE
NUCLEAR REACTOR - ATOMIC PILE Teacherflix 2 Views • 1 year ago

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7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customise the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use.

A boiling water reactor uses 235U, enriched as uranium dioxide, as its fuel. The fuel is assembled into rods housed in a steel vessel that is submerged in water. The nuclear fission causes the water to boil, generating steam.

In a nuclear power reactor, the energy released is used as heat to make steam to generate electricity. (In a research reactor the main purpose is to utilise the actual neutrons produced in the core. In most naval reactors, steam drives a turbine directly for propulsion.)

What's Nuclear Waste?
What's Nuclear Waste? Teacherflix 2 Views • 1 year ago

A lot of people talk about it, but what is it anyway?
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Simpsons Footage from Season 4, Episode 12 "Marge Vs. The Monorail" from Fox

Family Guy Footage from Season 13, Episode 1 "The Simpsons Guy" from Fox

Other footage:
Jet fuel burning (https://www.youtube.com/watch?v=VzupfyrWiew)
Magnox nuclear train crash test (https://www.youtube.com/watch?v=KL-xHrCIvMA)
Missile strike test (https://www.youtube.com/watch?v=jBp1FNceTTA)
Radioactive waste disposal (https://www.youtube.com/watch?v=3QXSkXHDZgU)

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#askMIT: What does the future of nuclear science look like?
#askMIT: What does the future of nuclear science look like? Teacherflix 3 Views • 1 year ago

"What does the future of nuclear science look like?" Find out from Sarah Don, a graduate student in Nuclear Science and Engineering and a senior operator at the MIT Nuclear Reactor. (http://web.mit.edu/nrl/www/)
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Produced by: Elizabeth Choe
Editing and Animations by: Ceri Riley

What Do Nuclear Scientists Do?
What Do Nuclear Scientists Do? Teacherflix 1 Views • 1 year ago

It's not exactly what you see in the movies... (it's actually much cooler.)
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Movie clips from:
Godzilla (2014), Warner Brothers
Hulk (2003), Universal Pictures
Dr. No (1962), United Artists

Fukushima footage from Sky News
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Nuclear Energy 101: The Yellow Cake Boys at K12Live! (Cambridge Science Festival 2014)
Nuclear Energy 101: The Yellow Cake Boys at K12Live! (Cambridge Science Festival 2014) Teacherflix 2 Views • 1 year ago

Will, Sam, and Sam (aka the Yellow Cake Boys), graduate students in nuclear engineering and management at MIT, talk about the basics and misconceptions of nuclear energy.

Learn more about our outreach events at http://k12videos.mit.edu/outreach-events

and about the Cambridge Science Festival at http://www.cambridgesciencefestival.org/Home.aspx

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U.S. Spotlight on K-12 Nuclear Science Curriculum Initiatives and STEM Engagement
U.S. Spotlight on K-12 Nuclear Science Curriculum Initiatives and STEM Engagement Teacherflix 7 Views • 1 year ago

This webinar was sponsored by the American Nuclear Society (ANS), the Clean Energy Ministerial (CEM) Nuclear Innovation: Clean Energy Future (NICE Future) initiative, the CEM Clean Energy Education and Empowerment (C3E) initiative and the International Youth Nuclear Congress (IYNC). The webinar presented new ways experts are growing the next generation of young minds with innovative approaches to STEM education. Starting with a discussion of successful new programs in the United States, the webinar previewed upcoming webinars in the series focusing on other countries.
5 Things You Wouldn't Expect a Nuclear Reactor To Do
5 Things You Wouldn't Expect a Nuclear Reactor To Do Teacherflix 5 Views • 1 year ago

Did you know that a nuclear reactor isn't the same thing as a nuclear power plant? What a nuclear reactor can do might surprise you.
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Other reactor footage from:
Czech Technical University in Prague (https://www.youtube.com/watch?v=-VOpdolSRqg)
Los Alamos National Lab (https://www.youtube.com/watch?v=w4QhJEX6DiQ)

Reactor fuel image from Neutron Radiography of Irradiated Nuclear Fuel at Idaho National Laboratory (https://www.sciencedirect.com/....science/article/pii/

Elevator Music Two Point Oh by JackBillPlatypus (https://soundcloud.com/jackbil....lplatypus/elevator-m
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Nuclear Reactor - Understanding how it works | Physics Elearnin
Nuclear Reactor - Understanding how it works | Physics Elearnin Teacherflix 3 Views • 1 year ago

Nuclear Reactor - Understanding how it works | Physics Elearnin video


Nuclear reactors are the modern day devices extensively used for power generation as the traditional fossil fuels, like coal, are at the breach of extinction. A nuclear reactor is the source of intense heat which is in turn used for generation of power in nuclear power station. Its mechanism is similar to that of a furnace in a steam generator; the steam is used to drive the turbines of the electric generator system.
A nuclear reactor consists of three crucial components: Fuel elements, moderator and control rods.
Fuel elements come usually in the shape of thin rods of about 1cm in diameter and contain fissionable nuclei, like Uranium (235 92U or 238 92U). These rods vary in number according to the size of the reactor, in large power reactor thousands of fuel elements are placed close to each other. This region where these fuel elements are placed is called the reactor core. These fuel elements are normally immersed in water which acts as a moderator.
The objective of a moderator is to slow down the energy neutrons in a nuclear reactor which are produced during the nuclear fission process by the fuel elements. Thermal neutrons, which are neutrons with energy of about 0.04 electron volts, are capable of producing fission reaction with 235 92U. During the fission reaction process, new neutrons are given out which have energies of about 1 MeV. These neutrons of typically escape from participating in another fission process as they are accompanied by enormous energy release. In f -ct, the probability of these neutrons produce another fission reaction is 500 times less than as compared to that of a thermal neutron. This is where moderator is extremely useful. Moderator has the capability to slow down, or in other words moderate, the speed of these high-energy neutrons, so that they can in turn be used for a chain reaction to trigger multiple fission reactions of other 235 92U nucleus.
Commonly, ordinary or heavy water is used as moderator in nuclear reactors because of the deuterons present in them which are capable of slowing the neutron speed. Water molecules in the moderator are useful in slowing down the high-energy neutrons which leave the fuel-element after nuclear fission. These high-energy neutrons collide with water molecules thereby losing out on some energy with every collision and therefore slow down substantially. A new fission reaction can now be triggered using this slow neutron by striking it with the fuel element.
The third and of the most prominent part of a nuclear reactor are the control rods. In order to get a steady output of energy from the nuclear reactor, every single nuclear fission reaction should trigger another fission reaction and ensure the availability of a spare neutron released to trigger the chain reaction. By controlling the number of spare neutrons available at any given time, the rate of the nuclear fission chain reaction can be controlled. This control on the fission reaction can be maintained using the control rods.
The main function of the control rods is to absorb any excess or spare neutron in the moderator in order to prevent any further fission reaction. Usually such control rods are made of Boron or Cadmium. To increase the rate of fission reactions, these rods can be removed from the moderator. A steady output of energy can be thus maintained by inserting or removing the control rods in the nuclear reactor.
Now that we know the components of a nuclear reactor, let us understand the working of a nuclear reactor. It is usually enclosed in a shield made of thick concrete walls. It consists of a reactor core, pump and heat exchanger. The reactor core and pump are in placed in contact with the water, which is usually the heat exchanger used in reactors. Due to the enormous amount of heat released dusing nuclear fission reaction, this surrounding water gets heated up and changes to steam, which is in turn used to turn the turbines. Thus huge heat energy gets converted into electrical energy. Water is continuously flown in and out of the nuclear reactor using the pump.
Thus a nuclear reactor successfully generates nuclear energy from fission reaction.
Inside MIT's Nuclear Reactor
Inside MIT's Nuclear Reactor Teacherflix 9 Views • 1 year ago

Ever wonder what actually goes on, day-to-day, at a nuclear reactor? Get an insider's tour of MIT's!
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Nuclear Reactors vs. Nuclear Weapons
Nuclear Reactors vs. Nuclear Weapons Teacherflix 4 Views • 1 year ago

What's the difference between a nuclear reactor and a nuclear weapon? A lot more than you'd think.
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Movie clips from:
Bad Boys (1995), Columbia Pictures
Chain Reaction (1996), 20th Century Fox

Nuclear test film: https://archive.org/details/gov.doe.0800013, https://archive.org/details/gov.doe.0800003, https://archive.org/details/gov.doe.0800000, https://www.youtube.com/watch?v=xwpgmEvlRpM

Aircraft crash test from Sandia National Laboratories (1988)
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Fossils for Kids | Learn all about how fossils are formed, the types of fossils and more!
Fossils for Kids | Learn all about how fossils are formed, the types of fossils and more! Teacherflix 50 Views • 1 year ago

In our fossils for kids video we explore all sorts of interesting facts about fossils. In this video you will learn about how fossils are formed including extinct animals and trace fossils, you will also learn about how to find fossils and identify the different kinds. We answer questions like: "What is a fossil?", "How are Fossils Formed?", "What Kind of Fossils are there?" and much more! We hope you enjoy.

Looking for more Fossil resources? Download our free comprehensive lesson plan here: https://learnbright.org/lessons/science/fossils/

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#Fossils

States of Matter for Kids | Solids, Liquids, and Gases
States of Matter for Kids | Solids, Liquids, and Gases Teacherflix 24 Views • 1 year ago

In this video we will learn all about the States of Matter for Kids. The 3 states of matter are solids, Liquids and Gases. Have you ever asked yourself "What is a solid?", "What is a liquid?", or "What is a Gas?" Well, if you have, we've got you covered. From what they look like, feel like, smell like we will cover it all. We know that solids and liquids can be felt but often times gasses cannot. We learn about how water can be in any of the 3 states. As an Ice cube it is a solid. When the ice cube melts or when you turn on your kitchen faucet water is a liquid. When it gets very hot and it starts to evaporate water becomes a gas. Learn this and more in a fun introduction to the states of matter.

Don't just stop with the video. Download your free 8 page lesson plan complete with states of matter activities, worksheets and more! https://learnbright.org/lesson....s/science/states-of-

Check out some of our other matter-related videos here:
Acids and Bases: https://youtu.be/ivRczDkilAI

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Ancient Rome for Kids | Learn all about the History of the Roman Empire for Kids
Ancient Rome for Kids | Learn all about the History of the Roman Empire for Kids Teacherflix 39 Views • 1 year ago

Ancient Rome for Kids is an engaging overview of the history of the roman empire. In this video we will learn about Ancient Rome and its early emperors. We will highlight Romes early government, values, people, cities, gods and goddesses, and we will even talk about the gladiators.

After watching the video we invite you to download our full 14 page lesson plan (built for grades 4-6) all about Ancient Rome complete with worksheets, activities, quizzes and much more to help your student learn all about this ancient civilization. You can download the lesson here: https://learnbright.org/lesson....s/social-studies/anc

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Browse our entire collection of Social Studies lesson plans: https://learnbright.org/lessons/?filter_subject=social-studies

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