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Most people think that Force is just a push or a pull upon an object.
But is there anything more to it? What is a force? What are forces and motion (Physics Grade 9)
Watch this video to know more about force.

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0:00 Introduction
0:43 Misconceptions about Force
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2:37 Force Example
3:33 Forces acting on Stationary Objects
3:44 Forces acting on the Object Moving at Uniform Velocity

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After watching countless hours of 2014 Olympic Game coverage from Sochi, Trace became curious about the actual physics behind curling. Curiosity got the best of him, and he decided to learn about it first hand by actually learning how to play from the professionals themselves!

Read More:
Everything You Need to Know About Curling at the Sochi Olympics
http://keepingscore.blogs.time.....com/2014/02/10/soch
"A quick guide to watching and enjoying the Winter Olympics' strangest sport."

Sochi 2014 Olympic Curling Schedule and Results
http://www.sochi2014.com/en/curling

What Exactly Is Curling?
http://mentalfloss.com/article..../23982/what-exactly-
"Olympic curling has taken to the ice, but if you're like most Americans, this writer included, the game is a bit baffling. Here's a quick, stripped-down primer on everyone's favorite icy alternative to shuffleboard."

Curling
http://en.wikipedia.org/wiki/Curling
"Curling is a sport which players slide stones across a sheet of ice towards a target area which is segmented into four concentric rings."


Special thanks to the SF Bay Area Curling Club and the Oakland Ice Center.
http://www.oaklandice.com/
http://www.bayareacurling.com/

Curling Club on Twitter:
@sfbacc

Mike Greenberg on Twitter:
@m_greenberg

Photo Credit © Mills, Andy/Star Ledger/Corbis

Watch More:
What Are Olympic Medals Made Of?
http://www.youtube.com/watch?v=W2hUdsu-Qqk
TestTube Wild Card
http://testtube.com/dnews/dnews-476-allergies?utm_campaign=DNWC&utm_medium=DNews&utm_source=YT
Physics of Figure Skating
http://www.youtube.com/watch?v=uXn43Nuv-hw

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In this video, we look at how to calculate momentum and how momentum is conserved.

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Work, Force & Power | What Is Force | Contact Force | Non Contact Force | What Is Energy | Magnetic Force | Gravitational Force | Educational Video | Best Kids Video | Science Video | Nature Video | Dr Binocs Show | Dr Binocs | Peekaboo Kidz

Hey kids, in this video, Dr Binocs will explain, Force, Work & Energy | What Is Force? | The Dr Binocs Show | Peekaboo Kidz

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Quantum gravity is the hardest problem in physics. It's the attempt to unify the two pillars of modern physics: quantum mechanics and general relativity. It's the study of how gravity works at the quantum level, where the laws of physics are very different from what we experience in everyday life. One of the biggest challenges in quantum gravity is that gravity is the weakest force in nature. It's so weak that it's impossible to study for particles in the lab. We can only see its effects on very large objects, like planets and stars. Scientists have been working on quantum gravity for decades, but they haven't been able to come up with a complete theory. So it remains one of the biggest unsolved mysteries in physics, one that scientists are determined to solve.

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This video is about the basic concept of electromagnetic induction.
electromagnetic induction is the basic principle of various type of motors and generators.
thank you so much for watching.

When you fall thousands of feet from the sky, it seems like something strange is happening with the laws of physics. Turns out, everything relies on a simple force - DRAG!
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Special thanks: Jumptown

Get more lessons like this at http://www.MathTutorDVD.com

In this lesson, you will learn an introduction to physics and the important concepts and terms associated with physics 1 at the high school, college, or university level.

We will review Newton's laws of motion, projectile motion, force, energy (potential and kinetic energy), gravitation, momentum, collisions and more..

A simple and clear explanation of all the important features of quantum physics that you need to know. Check out this video's sponsor https://brilliant.org/dos
I have spent a lot of time thinking about how best to explain quantum physics and this is the result of all my hours of pondering, and I’m really happy with how it turned out. I decided to just explain it as it actually is, rather than rely on analogies. The video explains the quantum wavefunction, particle-wave duality, the measurement problem, the double-slit experiment, superposition, entanglement, quantum tunnelling, the Heisenberg uncertainty principle, and energy quantisation. Let me know if it was helpful! Cheers Dx

#quantum #physics #DomainOfScience

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Further reading
For a more detailed introduction to quantum physics: 'The Quantum Universe' by Brian Cox and Jeff Forshaw is good.
And a slightly more advanced but fantastic description of what we do and don't know about quantum physics is the excellent book 'Beyond Weird' by Philip Ball.

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In this video, we start looking at waves. We explore the key differences between transverse and longitudinal waves. We then look at how when a wave travels, the wave moves but not the medium.

This video is based on the AQA spec. If you are following a different exam board then you should check your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.

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Mallard
David Whelan
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Drill instructor
Corporal Shawn M. Toussaint
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In this video, we look at static electricity. We start by looking at how electrons can be transferred from one insulator to another to create a static charge. We then look at how this is applied in a Van de Graaff generator. Finally, we explore how static electricity can be dangerous and how we can prevent this.

This video is based on the AQA spec. If you are following a different exam board then you should check your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.

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Man with Van der Graaf generator Shaun Donnelly

Electric wire Scott Ehardt
https://commons.wikimedia.org/....wiki/File:Stranded_l

Plastic knives, forks and spoons Alanthebox
https://commons.wikimedia.org/....wiki/File:Plasticwar

Van der Graaf generator with top removed Cropped from original image
Zatonyi Sandor
https://commons.wikimedia.org/....wiki/File:Van_De_Gra

Van der Graaf generator with top intact Cropped from original image
Zatonyi Sandor
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Airplane refuelling Usuario:Barcex
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References:

https://www.quantamagazine.org..../a-new-map-of-the-st
https://www.newscientist.com/l....astword/mg24732961-5
https://www.bbc.co.uk/news/sci....ence-environment-187
https://theconversation.com/ex....plainer-the-higgs-bo
https://www.aps.org/publicatio....ns/apsnews/200705/ph
https://www.forbes.com/sites/a....lexknapp/2012/07/05/
https://www.newscientist.com/a....rticle/dn22014-celeb
https://www.newscientist.com/a....rticle/2251285-physi
https://home.cern/science/physics/higgs-boson
https://www.iop.org/higgs-boso....n-and-history-univer
https://www.fnal.gov/pub/today..../AAAS2009/pdf/aaas-d
http://news.bbc.co.uk/1/hi/sci/tech/7893689.stm
https://www.discovermagazine.c....om/the-sciences/the-
https://www.popularmechanics.c....om/space/a27259/how-
https://www.forbes.com/sites/s....tartswithabang/2018/
https://www.open.edu/openlearn..../science-maths-techn
https://www.space.com/universe....-total-amount-matter

Image Credits:

By Fschwarzentruber - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/....w/index.php?curid=78
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By Lucas Taylor / CERN - http://cdsweb.cern.ch/record/628469, CC BY-SA 3.0, https://commons.wikimedia.org/....w/index.php?curid=14
By Basch, [...] / Opdracht Anefo - [1] Dutch National Archives, The Hague, Fotocollectie Algemeen Nederlands Persbureau (ANEFO), 1945-1989 bekijk toegang 2.24.01.04 Bestanddeelnummer 923-4491, CC BY-SA 3.0 nl, https://commons.wikimedia.org/....w/index.php?curid=36
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LHC magnets By Stefan A. Gärtner - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/....w/index.php?curid=43
LHC tunnel By Julian Herzog (Website) - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/....w/index.php?curid=38
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Robert Brout By Pnicolet at the English Wikipedia, CC BY-SA 3.0, https://commons.wikimedia.org/....w/index.php?curid=43
Francois Englert By Bengt Nyman from Vaxholm, Sweden - IMG_7472, CC BY 2.0, https://commons.wikimedia.org/....w/index.php?curid=50
Higgs Boson detection By CERN for the ATLAS and CMS Collaborations - https://cds.cern.ch/record/1630222, CC BY-SA 3.0, https://commons.wikimedia.org/....w/index.php?curid=29
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THE UNIVERSITY of NORTH CAROLINA at CHAPEL HILL

00:00 Introduction
6:01 Splitting The Atom
15:45 Deeper We Go
23:40 The Mystery Of Matter
35:24 The Dawn Of Matter

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In this video, we look at nuclear fission and nuclear fusion. First we explore how nuclear fission works and what is meant by a chain reaction. We then look at examples of controlled and uncontrolled nuclear fission. Finally, we explore what is meant by nuclear fusion.

This video is based on the AQA spec. If you are following a different exam board then you should check your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.

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Student studying: Gnarlycraig
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Sizewell nuclear power station
Ivor Branton
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Nuclear explosion
National Nuclear Security Administration
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In this video, we look at what is meant by contact and non-contact forces. We then look at examples of these forces.

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Tug of war
Kristen Wong
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Boat landing on water
Steve Hillebrand
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Skydiver
Robert Frola
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Tiffany Lamp
Shaun Donnelly

International Space Station
NASA
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Compasses around magnet
Nevit Dilmen
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Are you ready for a mind-bending journey into the concepts of 'nothingness' and 'vacuum'? This video delves deep into 8 fascinating questions that could revolutionize our understanding of the universe and existence itself. Prepare to have your perception of reality challenged as we explore the cutting-edge of physics and cosmology!

Does 'nothing' exist, or is there only 'quantum foam'?
According to quantum mechanics, even the most perfect vacuum isn't truly empty. We'll explore how the Heisenberg uncertainty principle and quantum field fluctuations show that 'nothingness' is actually a dynamic environment where particle-antiparticle pairs constantly pop in and out of existence. Discover the mind-boggling concept of quantum foam and how it challenges our classical notions of empty space.

Does "The Schwinger Effect" demonstrate "something from absolutely nothing"?
The Schwinger effect suggests that a sufficiently strong electromagnetic field can produce electron-positron pairs from the vacuum. We'll delve into this fascinating phenomenon and discuss how it might represent a practical application of Einstein's famous E=mc² equation, showing how energy can be converted into matter. Learn about the recent experiments using graphene that have brought us closer to observing this effect in the laboratory.

Can quantum fluctuation potentially create a universe from 'nothing'?
Quantum mechanics and inflationary theory propose that our universe may have arisen from quantum fluctuations. We'll explore the mind-bending idea that the entire cosmos could have emerged from 'nothing' and examine the theoretical frameworks that support this concept. Discover how the laws of quantum mechanics might allow for the spontaneous creation of space, time, and matter.

How Does Hawking Radiation Convert Vacuum Energy into Detectable Matter?
Stephen Hawking's groundbreaking theory explains how quantum fluctuations near a black hole's event horizon can result in the creation of real particles. We'll dive into the fascinating world of black hole thermodynamics and explore how this process leads to the gradual evaporation of black holes. Learn about the information paradox and its implications for our understanding of quantum mechanics and gravity.

How did inflationary cosmology turn 'nothing' into a universe brimming with galaxies and stars?
The theory of cosmic inflation provides a compelling explanation for how the universe rapidly expanded in its earliest moments. We'll explore how this process amplified quantum fluctuations into the large-scale structures we see today. Discover how inflation solves key problems in cosmology and why it's considered a cornerstone of modern Big Bang theory.

How does the Casimir Effect manipulate 'nothing' to produce measurable forces?
The Casimir effect, arising from the difference in quantum vacuum fluctuations between two conducting plates, demonstrates that 'empty space' is far from empty. We'll explore the experimental evidence for this effect and its potential applications in nanotechnology. Learn how this phenomenon challenges our understanding of vacuum energy and its implications for the cosmological constant problem.

Can the concept of Zero-Point Energy redefine our understanding of a true vacuum?
Zero-point energy, the lowest possible energy that a quantum mechanical system may have, has profound implications for our understanding of the vacuum. We'll explore the theoretical predictions of vacuum energy density and the stark contrast with observational evidence, known as the vacuum catastrophe. Discover the potential applications and limitations of harnessing zero-point energy.

How Vacuum Decay Would Destroy The Universe?
Finally, we'll delve into the unsettling possibility of vacuum decay, a process that could rewrite the laws of physics as we know them. Learn about false vacuums, quantum tunneling, and how a bubble of true vacuum could expand at the speed of light, obliterating everything in its path. We'll discuss the likelihood of this event occurring and its implications for the long-term fate of the universe.

Content
00:00 Introduction
00:48 Does 'Nothing' Exist, or Is There Only 'Quantum Foam'? Is Nothing Real?
06:06 Does "The Schwinger Effect" Demonstrate "Something from Absolutely Nothing"?
12:44 Can Quantum Fluctuation Potentially Create a Universe from 'Nothing'?
19:24 How Does Hawking Radiation Convert Vacuum Energy into Detectable Matter?
27:50 How Did Inflationary Cosmology Turn 'Nothing' into a Universe Brimming with Galaxies and Stars?
36:40 How Does the Casimir Effect Manipulate 'Nothing' to Produce Measurable Forces?
43:00 Can the Concept of Zero-Point Energy Redefine Our Understanding of a True Vacuum?
46:44 How Vacuum Decay Would Destroy The Universe?

This video tutorial provides a basic introduction into physics. It covers basic concepts commonly taught in physics.

Full 1 Hour 42 Minute Video : https://www.patreon.com/MathScienceTutor

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Physics PDF Worksheets:
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Kinematics Formula Sheet:
https://bit.ly/4dtD4Ti

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Join scientists as they grab light from across the universe to prove quantum entanglement is real.

#NOVAPBS Official Website: https://to.pbs.org/3vqiMpg

Einstein called it “spooky action at a distance,” but today quantum entanglement is poised to revolutionize technology from computers to cryptography. Physicists have gradually become convinced that the phenomenon—two subatomic particles that mirror changes in each other instantaneously over any distance—is real. But a few doubts remain. NOVA follows a ground-breaking experiment in the Canary Islands to use quasars at opposite ends of the universe to once and for all settle remaining questions.

(Premiered January 9, 2019)

Chapters:
00:00 Introduction
03:52 Is Quantum Entanglement Real?: Canary Islands Experiment
08:10 The Beginnings of Quantum Mechanics
15:26 Quantum Mechanics Explained by Einstein, Podolsky and Rosen
22:39 Developments from Discovery of Quantum Theory
27:11 The First Quantum Entanglement Experiment
32:04 Quantum Computers Solving Real-World Problems
39:02 Loopholes of Quantum Entanglement
45:20 The Results of the Canary Islands Experiment
47:47 Quantum Entanglement in Modern Physics

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#einstein #quantumentanglement

All bodies in this universe is attract each other by gravitational force, atleast we all have studied till date. The universe is like space-time sheet which can be deflated by the weight of body and the small bodies fall into the pit formed by heavy bodies. Free fall of bodies are actually happen due to this phenomenon which proves that gravitational force is not a force. All bodies actually moving in their respective paths and they meet where they cross their path. We only see things in one,two or three dimension with our naked eyes and can't see other remaining dimension. #shorts #science #physics #education #spacetime @CONCEPTUALGURUJI