Science
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In this video, we look at the uses of the electromagnetic waves and the reasons why each wave is suited to its uses.
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.
Image credits:
Creative commons license - https://creativecommons.org/licenses/by/2.0/
Infra red camera
Marco Verch
https://www.flickr.com/photos/....149561324@N03/247126
Radio
Stefan Kuhn
https://commons.wikimedia.org/....w/index.php?curid=10
TV
LG전자
https://cy.m.wikipedia.org/wik....i/Delwedd:LG_smart_T
Microwave oven
TabataAlima
https://commons.wikimedia.org/....wiki/File:16microwik
Satellite dish
High Contrast
https://commons.wikimedia.org/....wiki/File:Satellite_
Halogen heater
MASA
https://commons.wikimedia.org/....wiki/File:Halogen-He
Optical fibres
BigRiz
https://commons.wikimedia.org/....wiki/File:Fibreoptic
Prostate metastasis
RadsWiki
https://commons.wikimedia.org/....wiki/File:Prostate-m
Radiation therapy
Dina Wakulchik
https://commons.wikimedia.org/....wiki/File:Radiation_
Fluorescent bulb
Kuebi
https://it.wikipedia.org/wiki/....File:Energiesparlamp
Sunbed
Savv
https://commons.wikimedia.org/....wiki/File:Inside_a_t
Broken bone
Chrisnorlin
https://commons.wikimedia.org/....wiki/File:Arm-Wrestl
Music credit: Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/r....oyalty-free/?keyword
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#gravity #science #song
A song I wrote to introduce my elementary students to the concept of gravity and to 'maybe' explain why I'm always falling down! (lyrics below)
From Newton's basic laws of motion.
LYRICS
Gravity is all around,
When I fall it pulls me to the ground!
A force that you and I can’t see,
Pulls me toward you, and you towards me!
Keeps us from flying into space,
Why I fall when I trip on my shoelace,
That cool force is gravity,
Thank Isaac Newton’s apple tree!
Gravity,
A force that’s pulling you and me,
Gravity,
Pulls Jupiter, Mars, and Mercury,
Gravity,
A force that’s pulling you and me,
Down and down,
As our Earth spins round and round…
I fall,
You fall,
We all fall down!
The force of gravity
Pulling us to the ground,
You can never see it,
It never makes a sound,
It makes our mother Earth,
Go round, and round and round,
The planets have their orbits,
Because of gravity,
Pulls on flying objects,
Pulls on you and me!
Makes an apple fall,
Lets us slip down slides,
Makes a yo-yo go,
And oceans have their tides!
Gravity, we all fall down!
Gravity, we all fall down!
Gravity, we all fall down!
Gravity, we all fall down!
Hey gravity, hey gravity hey,
Don’t make me fall down today!
Here’s the reason, why I’m scared,
32 feet per second squared!
Hey gravity, hey gravity hey,
Don’t make me fall down today!
Here’s the reason, why I’m scared,
32 feet per second squared!
Gravity,
A force that’s pulling you and me,
Gravity,
Pulls Jupiter, Mars, and Mercury,
Gravity,
A force that’s pulling you and me,
Down and down,
As our Earth spins round and round…
Pulls Jupiter, Mars, and mercury,
And all the planets I can see,
Pulled in orbits around the sun,
The sun is pulling everyone?
Sun has so much gravity,
A whole bunch more than you and me!
Great big mass, big gravity,
I’d weigh much more on the sun you see…
I’d weigh much more,
On the sun you see,
Great big ball of mass,
Means more gravity,
The great amount of mass,
Means the greater the pull,
A dog has less mass,
Than a cow or a bull!
It’s not too strong,
But it’s all around,
If it was real strong,
We couldn’t jump up off the ground,
Gravity’s good,
Based on mass not girth,
Gravity’s good,
It holds us to the Earth!
Gravity, we all fall down!
Gravity, we all fall down!
Gravity, we all fall down!
Gravity, we all fall down!
When you hear the word "work," what is the first thing you think of? Maybe sitting at a desk? Maybe plowing a field? Maybe working out? Work is a word that has a little bit of a different meaning in physics and today, Shini is going to walk us through it. Also, energy and power!
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Director Christopher Nolan and author Kip Thorne speak to TIME's Jeffrey Kluger about the physics of 2014 blockbuster Interstellar. There's no arguing about the blockbuster status of Interstellar, director Chris Nolan's latest box office phenomenon. But plenty of people are debating the science component of that sci-fi tale'”which is how it always is when a movie based in something as non-negotiable as physics has to take just enough liberties to make the fiction part of the story fly. Nolan was determined to keep his narrative scientifically honest, which is why he signed on as technical adviser celebrated Caltech physicist Kip Thorne'”who literally wrote the book on (much of) the movie's cosmology. TIME's Jeffrey Kluger sat down with Nolan and Thorne to talk about human curiosity, the art of sci-fi filmmaking and the one time the two of them locked horns over a plot point.
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Christopher Nolan & Kip Thorne Break Down The Physics of Interstellar | TIME
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This is the Map of Quantum Physics and quantum mechanics covering everything you need to know about this field in one image. Check out this video's sponsor https://brilliant.org/dos
And grab this poster here: https://store.dftba.com/collec....tions/domain-of-scie
I’ve been fascinated with quantum physics and quantum mechanics for a very long time and I wanted to share the subject with you so I made this map of quantum physics to lay out the ideas within the subject, to set some bounds on it so you know its not endless and to introduce you to lots of concepts that if you are interested in them you can dig deeper. When you are approaching a subject like this that’s so complicated it can be quite challenging because you don’t know where to start and you don’t know how all the concepts relate to each other so hopefully this will put everything in context.
This playlist expands on this video with lots of other more specific videos that dive deeper: https://www.youtube.com/playli....st?list=PLOYRlicwLG3
#quantum #physics #DomainOfScience
If you’d like to support my free educational content: https://www.patreon.com/domainofscience
Big shoutout to everyone who gave me feedback on twitter about the poster and a special thank you to Sarah Johnson and Chris Ferrie for their excellent fact checking.
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Sound effects obtained from https://www.zapsplat.com
Music by Dominic Walliman
Additional music: Verified Picasso by Scary Island, Song of Sadhana by Jesse Gallagher.
Sherlock Holmes image by Sidney Paget
GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Donnelly/e/B084FH9JPF?ref_=dbs_p_pbk_r00_abau_000000&_encoding=UTF8&tag=freesciencele-21&linkCode=ur2&linkId=1fbc0f5c3e7450e895637b56ee343168&camp=1634&creative=6738
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In this video, we look at refraction of waves. First we explore what is meant by refraction and look at how this is due to changes in the speed of waves as they change from one medium to another. Finally, we use the idea of wavefronts to explain how changes in wave speed cause refraction.
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.
Image credits: https://creativecommons.org/licenses/by/2.0/uk/
Glass with striped background
JrPol
https://commons.wikimedia.org/....wiki/File:R-DSC00449
Straw in blue water
Bcrowell
https://commons.wikimedia.org/....wiki/File:Refraction
Music credit: Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
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Artist: http://incompetech.com/
Come on guys... it's not rocket science
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This video covers:
- Brief summary of what transformers do (i.e. step up or step down the voltage)
- How transformers work
Exam board specific info:
AQA - Separate/triple science and higher tier only
IGCSE Edexcel - Separate/triple science and higher tier only
Edexcel - Higher tier only
OCR 21st Century - Separate/triple science and higher tier only
OCR Gateway - Separate/triple science and higher tier only
Maths Playlist:
https://www.youtube.com/playli....st?list=PLidqqIGKox7
GCSE Chemistry playlist:
https://www.youtube.com/watch?v=fN8kH9Vvqo0&list=PLidqqIGKox7WeOKVGHxcd69kKqtwrKl8W
GCSE Biology Playlist:
https://www.youtube.com/watch?v=--dIBinUdeU&list=PLidqqIGKox7X5UFT-expKIuR-i-BN3Q1g
GCSE Physics Playlist:
https://www.youtube.com/watch?v=aHVJfRxeAxo&list=PLidqqIGKox7UVC-8WC9djoeBzwxPeXph7
NOTE: We would like to correct an error in this video. Birds do not get electrocuted when resting on power lines because there is no path to ground. Electricity has to flow from a place of high potential to low potential to electrocute. If a bird were to touch the line and some grounded metal of some kind, they could be shocked.
Hello Teachers and Parents! In this video we will learn all about electricity. Your student(s) will learn about lightning, power plants, Direct Current (DC) and Alternating Current (AC). We even talk about when electricity was discovered and go over topics like conductors and insulators. By the time you are done watching this video your child will have a much better understanding of what electricity is, where it comes from, and the amazing things it can do.
We know that electricity can be a tricky topic to cover so throughout the video we provide really good examples and break down the complex ideas. We also have a complete lesson plan full of worksheets and activities that will help your student practice what they are learning. You can download for free here: https://learnbright.org/lesson....s/science/electricit
In this video we will learn:
0:00 What is Electricity?
1:38 What is a Direct Current?
4:13 What is an Alternating Current?
5:55 How do Power Plants produce Electricity?
6:51 How do Magnets create Electricity?
7:33 What is Static Electricity?
8:35 What is a Conductor?
9:08 What is an Insulator?
10:21 When was Electricity Discovered?
11:31 Learning Activity | Can you solve the Electricity Riddle?
Check out some of our other electricity-related videos here:
Magnets: https://youtu.be/7HHs98PBgk0
Thank you for watching and learning with us! We’re constantly releasing new content and videos, so click that “Subscribe” button and you’ll get notified.
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*Teachers and Parents! Did you know? In addition to these great videos, we have also created a library of high quality and engaging lessons for your elementary aged student(s). Visit us, sign up for a free account, and instantly you'll have access to thousands of lesson plans, learning materials, teaching instructions, activities, and assignments that your kids will really enjoy! We hope to see you soon!
Browse our entire collection of Science lesson plans: https://learnbright.org/lessons/?filter_subject=science
#ElectricityForKids
#WhatIsElectricity
Test your knowledge with this quick quiz! https://youtu.be/Hq6csk5neb4
EM SPECTRUM SONG: https://youtu.be/bjOGNVH3D4Y
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00:00 Intro
00:25 Forces - vectors & scalars
02:09 Weight & work done
03:20 Springs
04:42 Moments (TRIPLE)
05:21 Pressure in fluids (TRIPLE)
06:27 Graphs of motion - velocity & acceleration
08:05 Equations of motion
09:12 Newton's laws of motion
11:20 Stopping distances
12:08 Momentum
13:42 Force & momentum (TRIPLE)
14:24 Waves
16:52 Sound & seismic waves (TRIPLE)
18:14 EM spectrum
19:39 Refraction
20:36 Lenses (TRIPLE)
22:57 Colour & blackbody radiation (TRIPLE)
23:57 Magnetism
25:14 Motor effect
26:49 Motors & loudspeakers
27:36 Generator effect (TRIPLE)
29:23 Transformers (TRIPLE)
31:43 Solar system & life cycle of stars
33:11 Satellites & circular motion
34:11 Red shift & Big Bang theory
GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Donnelly/e/B084FH9JPF?ref_=dbs_p_pbk_r00_abau_000000&_encoding=UTF8&tag=freesciencele-21&linkCode=ur2&linkId=1fbc0f5c3e7450e895637b56ee343168&camp=1634&creative=6738
School licenses from 40p per copy https://www.freesciencelessons.....co.uk/school-licenc
In this video, we look at how to carry out Required Practical 4: Current-PD characteristics of components. These include a resistor, a filament lamp and a diode.
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.
Image credits: https://creativecommons.org/licenses/by/2.0/uk/
Student studying: Gnarlycraig
https://commons.wikimedia.org/....wiki/File:Studying.j
Music credit: Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/r....oyalty-free/?keyword
Artist: http://incompetech.com/
Use code HISTORY16 for up to 16 FREE MEALS + 3 Surprise Gifts across 7 HelloFresh boxes plus free shipping at https://bit.ly/3Rkknac !
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If you like this video, check out writer Geraint Lewis´ excellent book, co-written with Chris Ferrie:
Where Did the Universe Come From? And Other Cosmic Questions: Our Universe, from the Quantum to the Cosmos
https://www.amazon.com/Where-U....niverse-Other-Cosmic
AND check out his Youtube channel:
https://www.youtube.com/c/AlasLewisAndBarnes
Incredible thumbnail art by Ettore Mazza, the GOAT: https://www.instagram.com/ettore.mazza/?hl=en
Art created by soso112429, and Joe from History Dose: www.youtube.com/historydose
Thanks to Alexander Long for speculative fiction suggestions.
Music from Silver Maple, Epidemic Sound and Artlist.
Stock footage from Videoblocks and Artgrid, images of galaxies from NASA and ESO/Hubble.
Image Credits:
Steam engine Tfme, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
Caesium Clock By Binarysequence - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/....w/index.php?curid=24
Arecibo By Mariordo (Mario Roberto Durán Ortiz) - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/....w/index.php?curid=81
World line By Cyp - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/....w/index.php?curid=28
Roger Penrose By Cirone-Musi, Festival della Scienza, CC BY-SA 2.0, https://commons.wikimedia.org/....w/index.php?curid=19
Wormhole By MikeRun - Own work, using Wurmloch (Wormhole) by MrFreakmanis (CC BY-SA 3.0) (https://www.thingiverse.com/thing:190022), CC BY-SA 4.0, https://commons.wikimedia.org/....w/index.php?curid=10
Dirac Plaque By Nightryder84 - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/....w/index.php?curid=15
Spacetime Cone By SVG version: K. Aainsqatsi at en.wikipedia Original PNG version: Stib at en.wikipedia - Transferred from en.wikipedia to Commons. (Original text: self-made), CC BY-SA 3.0, https://commons.wikimedia.org/....w/index.php?curid=22
00:00 Introduction
04:59 What Is Space?
14:45 What Is Time?
25:26 New Space
44:16 New Time
1:00:09 Quantum Spacetime
GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Donnelly/e/B084FH9JPF?ref_=dbs_p_pbk_r00_abau_000000&_encoding=UTF8&tag=freesciencele-21&linkCode=ur2&linkId=1fbc0f5c3e7450e895637b56ee343168&camp=1634&creative=6738
School licenses from 40p per copy https://www.freesciencelessons.....co.uk/school-licenc
In this video, we start looking at resistance. Students sometimes find the idea of resistance tricky at first so I'll take you through the basic ideas and then how to calculate resistance.
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.
Image credits: https://creativecommons.org/licenses/by/2.0/uk/
Student studying: Gnarlycraig
https://commons.wikimedia.org/....wiki/File:Studying.j
View full lesson: http://ed.ted.com/lessons/the-....physics-of-the-harde
In the third act of "Swan Lake", the Black Swan pulls off a seemingly endless series of turns, bobbing up and down on one pointed foot and spinning around and around and around ... thirty-two times. How is this move — which is called a fouetté — even possible? Arleen Sugano unravels the physics of this famous ballet move.
Lesson by Arlene Sugano, animation by Dancing Line Productions.
Have you ever found yourself pondering the mysteries of the atom? In this documentary, we're diving into some of the most thought-provoking questions that bridge the gap between the microscopic world of atoms and the expanse of the universe.
*Energy Source for Electron Movement:*
One of the wonders of atomic structure is how electrons orbit the nucleus. But where do these tiny particles get the energy to perform this intricate dance? We'll delve into the fascinating mechanisms that fuel electron motion.
*The Birth of the First Atom:*
Ever wondered how the very first atoms formed? Join us as we explore the cosmic timeline and the events that gave rise to the building blocks of matter after the Big Bang.
*Touching Atoms: Myth or Reality?*
Do atoms ever truly touch each other? Discover the surprising truth behind atomic interactions and the forces that come into play when particles get close.
*Identity of Identical Atoms:*
Are two atoms of the same element truly identical? We'll delve into the atomic world to uncover the subtle differences that can exist even within the same element.
*Colorful Atoms?*
Can atoms have colors? While atoms themselves aren't colorful in the visible spectrum, they can exhibit fascinating light-related behaviors that we'll explore.
*Overcoming Proton Repulsion:*
The positively charged protons in an atomic nucleus should repel each other due to their like charges. Explore the powerful force that prevents them from flying apart.
*Proton's Size Unveiled:*
How big is a proton? We'll zoom in to the subatomic level and discuss the dimensions of these fundamental particles that play a crucial role in atomic nuclei.
*Solidity in Empty Space:*
If atoms are mostly empty space, how can objects appear and feel solid? Join us to unravel the mysteries of solidity in the midst of atomic emptiness.
*The Dance of Atoms - Formation of Molecules:*
Why do atoms come together to form molecules? Discover the intricate chemistry behind the bonds that unite atoms into the diverse molecules we encounter.
*Neutron Stars - Giants of Nuclear Matter:*
Is a neutron star akin to a colossal atom? We'll explore the extreme conditions of these celestial wonders and their relationship to atomic structures.
*A Universe Within an Atom:*
Imagine the universe as an atom. Could there be a connection between the macroscopic and the microscopic? We'll embark on a speculative journey into this intriguing concept.
*Atoms After Life:*
Ever wondered what happens to your atoms after you pass away? We'll discuss the fate of the atoms that once composed your body and their journey through the natural cycle.
*Eternal Existence of Atoms:*
Do atoms last forever? Uncover the changes atoms undergo through various processes and consider the intriguing concept of their enduring nature.
Thank you for joining us on this captivating exploration of atoms and the universe. We hope this video sparks your curiosity and provides a deeper understanding of the mysteries that shape our reality. Don't forget to like, subscribe, and hit the notification bell for more captivating content.
Chapters:
00:00 Introduction
00:39 Where Do Electrons Get Energy To Spin Around An Atom's Nucleus?
05:34 How Did the First Atom Form?
13:55 Do Atoms Ever Actually Touch Each Other?
17:37 Are Two Atoms of The Same Element Identical?
21:18 Does an Atom Have a Color?
25:56 Why Don't Protons Repel Each Other Out Of The Nucleus?
29:22 How Big Is a Proton?
33:31 If Atoms Are Mostly Empty Space, How Can Things Be Solid?
36:23 Why Do Atoms Form Molecules?
41:43 Is a Neutron Star Just One Giant Atom?
46:18 What If The Universe is An Atom?
50:41 What Happens to Your Atoms After You Die?
57:19 Do Atoms Last Forever?
