Isotopes - GCSE IGCSE 9-1 Physics - Science - Succeed In your GCSE and IGCSE
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- Опубликовано: 6 сен 2024
- Let Mr Thornton simplify what isotopes are - it's easy when you know how! A secondary education revision video to help you pass your Science GCSE. No unnecessary information, just the stuff you need to know for GCSE Science revision, in a short, sweet video, to make sure you Succeed In your GCSE and IGCSE!
My video on the Structure of the Atom is here: • Structure of the Atom ...
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Please note that this video relates specifically to the specifications for exams from 2014, though the concepts covered are relevant to other exam board course specifications too.
DISCLAIMER:
These videos are a revision guide designed to help students understand the requirements of the GCSE Science course, specifically the course specification(s) mentioned above. Although I say I can "help" students achieve a C grade, this should in no way be interpreted as a binding promise that this will definitely be a student's final grade. I offer expert guidance to try to improve a student's chances, but as there are so many factors beyond my control, I am unable to make any guarantee about the content of any exams or controlled assessments beyond any restatements of the relevant section or sections of the course specification(s). In my experience, a student's final grade is mainly dependent upon the quantity and quality of preparation he or she puts in. All I can do is try to optimise this preparation. In short, no-one can guarantee a grade; I'm just here to help.
Honestly im kinda depressed that this is the last time ill need your videos because its like you've been my science teacher for 3 years but ive only watched your videos for 3 days and you've helped me so much, more than my school teachers have. Thank you Mr.Thornton
Aww, it's OK - you can still come back and watch my videos next year even if you don't need to. I won't mind :)
Yayyy he finally got rid of the 'get your C in your gcse'
Yeah
I prefered "Get that C" It was so unique ;(
Just watched through the whole playlist - pretty prepared for the exam at 9am! Many thanks! :)
Got all my science mocks this week, Chemistry tomorrow! But your videos are SO helpful and have helped me understand things I never would have, thank you! X
A new intro? Im liking it Mr. Thornton!
when you teach me more in 8 min than my actual physics teacher....
🙃
i need more school teachers like this guy
You are such a lifesaver! Thank you sooooo much!!! I have my Physics exam next Monday 😊
Thanks a lot for doing these videos, helped a lot during the exam today, keep up the good work!
Glad to help :)
sir could you do titration calculations plz
+English Gent I've added it to my list.
Christopher Thornton you have a Physics video in chemistry playlist.
Actually it shows up in both Chemistry *and* Physics.
*thanks*
Thanks for your help! I struggle with chemistry a lot, one question: i thought isotopes is chemistry not physics?
+Elodie G-P It shows up in both. Probably a bit more in Physics, but that's why I put it in both playlists.
Please could you do videos on protein synthesis (higher tier), the circulatory system, and the digestive system. Your videos are very helpful :)
I think that some people may think that you made a mistake on the C2 playlist and might miss this topic.
Loving the new slogan and thanks this really helped :)
+london manny Thanks!
Hi Mr Thornton, I was just wondering do all of the videos in the playlist cover the whole course? I just want to make sure it's all here aha
Not quite yet, but they do cover the areas people tend to have the most problems with.
+Christopher Thornton thanks!
can you please do a video about irradiation and contamination
also for forces
is the whole course in this playlist? because i just watched everything to cram for tomorrow and i might cry if there's more...
It's everything apart from plugs and earth wires (I think that's it)
Not all of it, sorry, but don't cry - I've done the topics which are the most common and which people have the biggest problems with, so that should give you a fighting chance :)
Again, last minute revision haha. Do you have any A-Level Physics videos?
Edit: Great videos by the way, these are extremely helpful for revision - I have already recommended these videos from you to friends!
Thanks! No A-Level videos yet I'm afraid :(
please do some videos on the more complicated iGCSE topics
I do actually have videos on more complex topics - I explain more here: ruclips.net/video/DNZ-JhwvxNg/видео.html
Please can you do a video on nuclear equations, thanks in advance!
I have got a qustion i hope you can anawer it. Radioactive substances spit out one or more types of ionising radiation from the nucleus
Q. Why do they do that?? and what is the meaning of ionising radiation??
Good question. Nuclear radiation is a little similar to chemical reactions - both are driven by substances trying to lose energy to reach a more stable lower-energy state. In nuclear reactions, atoms can do this either by rearranging the number of protons and neutrons in their nucleus *or* by moving their electrons into lower-energy configurations.
In the first case, atoms can either fire out a pair of protons and neutrons, this is alpha radiation, or they can spontaneously transform a neutron into a proton. However, if they transform a neutron they also have to produce an extra electron to conserve charge, and this extra electron is fired out of the nucleus as a beta particle.
Electrons can move up and down a "well" of energy, resting at different sub-levels, with the lowest level being the lowest potential energy. Bombarding an electron with electromagnetic radiation can move it up the well (this is actually why different compounds absorb different frequencies of light and so look different colours, by the way) and if they emit that energy back out as electromagnetic radiation they can lose energy and drop back down again (if you've ever seen something glowing under UV light, this is what's happening).
If the electrons of an atom are very high energy (typically because it was formed by the nuclear decay of another atom) they can rapidly emit this energy as the highest energy part of the electromagnetic spectrum; gamma rays.
These releases of radiation are ionising because when they hit other atoms they can either give those atoms electrons or knock electrons off those atoms. That's all that ionisation is.
Unfortunately, the bonds in the molecules we're all made of are made of the outer electrons of their constituent atoms, so if the atom loses those electrons the bonds can break and the molecules become damaged. If a DNA molecule is damaged in this way it can be particularly dangerous, potentially causing cancer.
Thank you so much
I have a test on radiation e.g. Gamma alpha and beta, can you please make a video on that.
could you please do electolysis
+Tom Wilson You'll find three videos all about it in the middle of my C2 playlist: ruclips.net/p/PLhzZT1_v76sA1yQYHFASlOENdHDMSa4hs
How would you define an isotope
"An isotope is one particular type of an atom. Different isotopes have the same number of protons and electrons, but different numbers of neutrons."
cam you cover genes and enzymes b2
Please go over the life cycle of a star, and the different stages of stars for physics please (:
It's here: ruclips.net/video/E8PZixIu8qM/видео.html :)
Does this playlist cover all of p2?
Looks like a little bit o' physics migrated to the C2 playlist
+Adam on RUclips Isotopes is in chemistry as well as physics 🙂
Can you do an exam technique video? Im not sure how you would do it but could you please consider it
+Lime Time That's something I'll be covering later this month. Watch out for a video going up shortly where I explain more.
okay thank you very much
Giant covalent/ giant ionic bonding please
I'll add it to my list.
Is this all the information needs for Higher tier?
Are all of these 26 videos, everything for additional science?
I'm sitting my exams in the Summer of 2018 and I can't find any videos on the new 9-1 spec, when will you do videos for that spec. I know I am quite early but i don't like leaving revision to the last minute.
+Shammah Sowah Wow, you are early! The new specifications are still officially drafts and need final approval from the government. They could still change (though probably not much), so I'm waiting until they're official. That said, I expect almost everything in the videos I currently have will be relevant for you too.
Very useful thanks
+Rhun Edwards You're welcome!
Do you only do videos that are specific to the AQA exam board ?
Due to popular demand, all of my videos since September 2015 have been suitable for all the legacy specifications (for final exams in 2017). Any I make from now on will also be suitable for the new specifications (for first exams in 2018). That said, the differences between the specifications are relatively minor, so even students who aren't sitting AQA exams should be able to get value from the older videos.
Exams so soon could you do the heart please in b3? amazing videos help a lot btw.
+Mohammed Ateeq I'll try to get to it as soon as I can.
Do you have a lesson on exothermic and endothermic reactions?
+Gabby 6 Not yet. I'm going to sort out some C3 videos as soon as I get a chance.
Do you have a video on chemical bonding for C2 ?
+Lauren Lawlor Yes, you can find it near the start of my C2 playlist: ruclips.net/p/PLhzZT1_v76sA1yQYHFASlOENdHDMSa4hs
Im really struggling with understanding diatomic elements could you please help me
+Ryan Simms What is it that you don't get about them?
Please could you do currents and electricity?
+CorkBen Is this video useful? ruclips.net/video/lTFSV0McM2A/видео.html
:D yes it is thanks! I guess I hadn't seen that.
thank you very useful
Happy to help :)
chemical tests? precipates etc?
+Eisen Ng I'll add it to my list. I do already mention the test for carbon dioxide in the video on the limestone cycle too: ruclips.net/video/P175hDYCIRg/видео.html
hang on a minute, why is this in the chemistry playlist if it's physics? is it in both or is it just a mistake? I was sitting here like I do not remember learning this in chemistry 😂
The structure of the atom does show up in Chemistry too, so I thought it was worth adding this to the Chem playlist too.
Does this go beyond a C or do u recommend other videos??
Yes, I do cover things beyond a C too - I explain here: ruclips.net/video/DNZ-JhwvxNg/видео.html
Uhm, why is this coloured red? From what I've watched red means it's related to physics.
It shows up in Phys & Chem, so it's on both playlists. I picked red for Phys because it's more that than Chem.
Christopher Thornton Ah, that explains it all. Thank you, both for that and the upload it'll really help :)
please go over esters
I'll add it to my list.
Pleease do a video on Microscopy, it's on the new GCSE specification
+TheKMeister 2 I'll add it to my list. Which of the new specifications are you doing?
2018
Christopher Thornton yeah 2018 they're still in drafts I knkw
+TheKMeister 2 Do you know which exam board it is? AQA? Edexcel? OCR? etc.
It's AQA
Sir could you do work done if you already havnt
+HenryWM I'll add it to my list.
Would you ever consider doing Succeed in your A-Level? Or AS?
+MrKickasskenny Yes, absolutely, but I'm currently trying to finish the GCSE content first.
Hi, can you please make a video or tell me what topics I need to revise for units C3,C4,B3,B4,P3 and P4, as you have not made many videos on these subjects, I would ask my teachers but it's Easter break.
+Shim Awitz That's quite an expansive question. Your best bet is to have a look at the course specification. I assume you're sitting Edexcel, in which case the current specifications can be found on their website. You'll either be entered for their Separate Science or Mixed Science qualifications. The links to the specifications are below.
Separate Science Route: qualifications.pearson.com/en/qualifications/edexcel-gcses/science-2011-individual.html
or Mixed Science Route: qualifications.pearson.com/content/demo/en/qualifications/edexcel-gcses/science-2011-mixed.html
+Christopher Thornton I tried looking for the subjects online earlier but I couldn't find anything so this is very useful. Thanks
+Shim Awitz No problem :)
sir can you plz do inorganic chem
+waad ahmed I'll add it to my list.
thank you sooo much
What happen to the C grade
+Zara Star I felt like it might be putting people off, so I decided to try changing it. What do you think?
+Christopher Thornton hahahhaa
+Christopher Thornton I feel better but also feel like a fool at the same time
+Christopher Thornton I need that c grade I can't fail science please bring it back on 😢😢😢😢
+Peeratat R why would you feel like a fool??
Can you cover explosions please
+Barney Long I'm trying to focus on the GCSE syllabus, and I'm afraid explosions isn't on there :)
+Christopher Thornton I don't know if it comes under a different name for you but it is in my text book it's under work,energy and momentum and it's all about recoil.
+Barney Long Ahhhh, I see. Which exam board are you sitting?
Also, you may find this video on Momentum useful: ruclips.net/video/XUdKHofCWUk/видео.html
+Christopher Thornton I'm sitting aqa additional science this summer
+Barney Long Then the video I linked should be exactly what you need for momentum. I originally started doing videos just for AQA, so everything on here should be suitable for you. I guess whoever wrote your textbook was just trying to liven things up a bit :)
I'll add Work Done to my list too.
This is Chemistry not Physics
Actually it shows up in both Chemistry *and* Physics.
came up today in the exam
+Unknown UKB Is this what you need? ruclips.net/video/t8ELWIYiYNE/видео.html
great vid can you explai what is the difference between Po-191 and Po-191m ?
*explain
succeed? oooohhh changed the slogan
+daddyhughes111 Yep. What do you think?
+Christopher Thornton Definitely better. Probably better for SEO too since more people google how to succeed in gcse than how to get a c in gcse.
+daddyhughes111 Glad to hear you like it 👍🏻
Titration
+Ella-grace Gregoire I'll add it to my list.
🍀🍀🍀🍀🍀🍀🍀
Gas chromatography
It's already here: ruclips.net/video/Fdm2h2QMdk0/видео.html