GCSE Physics Revision "Irradiation and Contamination"
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- Опубликовано: 25 авг 2024
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In this video, we look at what is meant by irradiation and why this can be harmful. We then look at how we can reduce the risk from irradiation. Then we explore radioactive contamination and what is meant by "peer review".
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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Yes army keep on revising remember what bts said in pied piper ❤
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Here here
Honestly, he deserves it so much!
@@majwaska fr I'm tryna get them 9s😂
learned nothing in 1 hour at school. learned everything in 5 minutes from this, thankyou.
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his voice cures depression 😂😂
Causes*
And also our exam result 😅
Lol for real.
0:59
Him: A good example of irradiation is -
Me : *the inCreDible huLk?!*
Him: no, sterilisation
thx your videos helped me achieve a 9-8 in my most recent mocks could not have done it without your incredible videos thank u
kamran16ashraf samee
Did u only learn the notes from freescienclessons and not textbooks and u managed to get 9-8?
When ppl in my class don’t understand they always say “I’ll just get Shaun to teach it to me later”
same
your actually sorted cause every year you have a guaranteed new batch of pupils trying to learn GCSE science, so you'll still be getting ad revenue on all your old videos in 5 years time and gaining subscribers
2023 U GOT THIS!!!!!!!!!!
Your videos are great! Clear, simple and straight to the point!
I love you so much you're the best man alivee
saying that.. with that kind of profile name..?
Thank you so much, your videos are immeasurably helpful.
Just one question: is there any extra material or topics you would suggest going over for students aiming for 8s and 9s in science? Other than your videos and practice questions, of course (which are my two main points of reference)
now that u have done ur gcse do u have any recommendations?
Yes pls now that you're GCSEs are over please give us some tips👍🏻 would really appreciate it
I didn't believe that peer review was importance so I really didn't take much notice until it came on the exam and I wrote it down and watched this video the day before it
Last video before the paper 1 gcse science exam, hope it goes well!
did it go well?
how did it go bro
Peer👏 review👏
I was just about to comment that but decided to check comments first
Funny to see everyone returning after a year when exams roll around
2020 people here yet? Hope we dont get coronavirus 😬😬
hope ur not begging 4 likes :/
@@lowquallityrobloxvideos5530 pretty sure he is
Pixel Gaming asked a question,didn’t mention likes at all.
@@conormcguinness3215 facts
@@conormcguinness3215 guess you dk how RUclips works
Thank you, you really helped me with my science GCSE's this year.
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There is a special place on heaven for this guy
you and cognito are the only things keeping our science and maths lessons alive with quarentine
I'm happy to help. Thanks for the message.
Very useful video, but, I wish you included practice questions! :) Thanks
What would we do without you sir
saving my grades the night before physics igcse 😭
I like your videos how they are now , clear simple
thank u so much you make the best video ever you are the greatest man on science as well as Albert Einstein thank u
Whats the scene after GCSE'S
Less go frevo
Good luck to everyone doing their exam today 👍
thank you so mush, i have a chunky test on radioactivity tommorrow and youre helping so much
thankyou :]
thank you so much your videos helped me improve science so much
Hi sir just had the physics exam and thanks to your videos I think I got a 6 marker fully correct, we had to calculate SHC of water
Literally carrying so many students to victory at gcse 😂 THANKS SO MUCH FOR ALL YOUR NOBLE WORK!
Thank you so much Sir. Now i know this topic for good.
GCSE in 1.5 hours oopsie thanks for maybe saving me
Hey sir , sorry to disturb but you know the part where you are talking about the sterilisation of the object - do i need to know that word for word ? - is it required to be know by the spec?
honestly you have taught me the whole of physics for my year 10 end of year exam
Thanks so much!
Thank you, you helped me achieve a 9-9 in my mocks
Thanks a lot - once again very useful, never even taught about 'peer review'. :)
peak ty
Stop looking through the comments and face your studies
at 500K can we see the outtakes?
#2021 GCSE GANG GANG, WHERE U AT. PHYSICS GCSE TOMOZ
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Keep up the hard work sir!!
Thank you so much
got my physics exam in 6 weeks
😭
tomorrow now lol rip
thx sir it really helps
Immagine walking around and saying to people "Hey, I am radioactive don't come near me"
YOU niverse you predicted covid 19
G
Thank you so much!
My gcse physics exam is today.( Im in year 10)
how did it go man?
how'd it go?
why are you sitting it a year early?
@@kurama1412maybe it's a mock exam idk
thank you
Thanks for the video
Can someone tell what a Radioactive tracer is in simple terms?
It is using a radioactive isotope to identify the location of something eg a cancer or a leak in a pipe.
It is when you place a source of gamma radiation into a leaking pipe, the gamma radiation will penetrate through the pipe and some of it will get absorbed depends on the thickness of the metal pipe. where there is a crack in the pipe the gamma radiation will collect on the outside, then using a geiger muller tube (detector) scan the pipe and where the crack is will be the point where the radiation is the highest.
Hoped this helped.
Hello there Sir Shaun. I wanted to ask about the properties of Alpha, Beta and Gamma radiation in magnetic fields. I have it in my book for an exam. So could you explain that please?
That's not required for AQA GCSE. However, remember that any charged particle will change direction (deflect) in a magnetic field. Alpha and beta both deflect because they are charged (they deflect in opposite directions due to their opposite charges). Gamma is uncharged and does not deflect.
An hours before the test
Well
It can help human good life 🤔
Main man Shaun 🤞
I appreciate the knowledge.
literal life saver! frickin' legend
Why do they call it penetrating power? That sounds so inappropriate 😂
😂😂🤦🏽
Thnx
question: shouldn't the findings be shared with other scientists before it's published?
omg thankssss
Am I the only one who feels like the difference wasn’t explained properly
If you want me to explain it again to you then let me know.
Freesciencelessons I have three questions if you don’t mind :
Can contamination cause irradiation over time, if it does, how?
Can Irradiation occur at the same time as contamination?
Do gloves prevent contamination but doesn’t prevent irradiation ?
Thanks for your time.
1. Yes it can. If you have radioactive particles actually on your skin or in your body, they are releasing radiation. So not only are you contaminated (the radioactive particles) but you are also being irradiated.
2. Yes although they are separate things. So you could easily be irradiated (eg by standing next to a radioactive element so the radiation passes into you) without being contaminated (because non of that element is actually on you or in your body).
3. Yes that's correct. Gloves will prevent contamination (well of the hands but they won't prevent you breathing in radioactive dust). However, beta and gamma radiation can easily pass through gloves (normal latex ones as opposed to heavy lead-lined gloves) so gloves won't protect you from irradiation (they will generally protect you from alpha radiation).
Hope that helps.
Freesciencelessons thanks.
Freesciencelessons Excellent explained.
sir shaun
The intro is the same as TTMIK contrast 😂😂
❤️❤️❤️❤️❤️❤️❤️❤️
Gl tomorrow everyoe
No radioactive man then....
:)
2021 anyone?
Lol he’s left handed
Omg. I didn't notice that lol
*Oxford wants to know your location*