GCSE Physics - Radioactivity 3 - Deflection and safety

This is the third and final video from the GCSE Unit on radioactivity. It discusses the safety precautions needed for using and handling radioactive sources, and the deflection of different types of radiation in magnetic and electric fields.

[@lemonywater2979]

You were literally the only person I've come across that actually taught me about radiation deflection in a magnetic field, which was the one thing I didn't really understand. Thank you so much!

[@aaa..]

Yes that part is exactly why I'm here

[@centric145]

OMG me too...

[@yusufhabib3507]

I am high school student from india and this helped me alot ... Tysm🤗🤗

[@lovattphysics6366]

Glad it was useful 😀😀

[@yusufhabib3507]

@@lovattphysics6366 today was my exam and It has gone very well

[@bakhamthabah79]

Icse boards ke liye tha na bhai? Ya?

[@p_vashisth]

Thank you sir, for clearing the concept. Love from ICSE, India

[@Ashiq.Ibrahim]

I've struggled with understanding why alpha particels deflected to the top and beta to the bottom, but thanks to you I completely understand!
Massive thank you!

[@lovattphysics6366]

Awesome! Great job sticking with it :)

[@damianxavier7343]

this was AMAZING! my mocks for the OLs start in 5 days and this was the only part of radioactivity that id didn't understand and you taught it beautifully!

[@lovattphysics6366]

Awesome! So glad it was helpful! Hope the mocks go well! Good luck!

[@deathcab3935]

me tooo good luck!!!

[@siddharthkataria5650]

BRILLIANT EXPLANATION.

[@wanderwonder20]

you taught deflection in magnetic field ..tysm😍

[@lovattphysics6366]

rubaba aman you’re welcome!!

[@faizaafrin2883]

Sir, you are a great physics teacher who elaborates everything.

[@lovestreetfoodie3323]

Your teaching forced my fingers to type "awesome"😍

[@sakthiviswanathan2879]

The only person who explained it so beautifully in layman terms. Thank you !

[@namvo7208]

Lots of love from an ex-BISer. Great content, Mr. Lovatt!

[@paulo1940]

Ty for this simple & helpful explanation. All the love from Egypt! ❤

[@lovattphysics6366]

Paulo you’re welcome! Thanks for the comment! 🇪🇬 ❤️

[@itzzarafath826]

thanks a lot for having your time with us. The way you explained is amaizing made my doubt clear within seconds. I really appreciate it. thanks again

[@lovattphysics6366]

You’re welcome! Thanks for the comment :)

[@tanishamohanthy4781]

U r great!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
THANK UUUUU SOO MUCHHHH

[@yunikuroo]

thank you so much! your explanation is very clear!

[@hope5202]

Thank you! This helped me a lot! I was really confused with this topic.

[@cand1ceee]

great video, finally understood why the alpha and beta particle deflect the opposite way in a magnetic field!! thank you so much! :)))

[@MuhammadAhmad-xs5ih]

THANK YOU
YOU R SIMPLY AMAZING

[@peteryanders1189]

Omgggg i suffered with this for so long thank you from my heart! ❤️

[@GeneralOCB]

Thank you so much.So much helpful

[@shahdelsayed8090]

I wasn't able to understand the deflection part but u really made me do
Thank youu soo much for much great effort ... keep going

[@yemialaka9650]

Great video, incredibly useful

[@rawanmohamed7668]

Tysm, nowadays we take virtual classes which is really hard to understand from my physics teacher, but this video really helped, thanks once again

[@lovattphysics6366]

Rawan Gaber you’re welcome! Thanks for your comment!

[@aqsasabir1914]

Great
Thank you Soo much

[@labonnebrandon9019]

I just want to note your explanation 😃
10/10

[@adhithanil5964]

Nice Job sir
Thank you!!
I'm definitely subscribing

[@SunitaSingh-tl2jr]

Thank you for this video...it helped a lot!!!

[@flowersat904]

Oh i just got presentation on this topic and your way of teaching was awesome now i am just ready for presentation

[@justinedupont6535]

What a fantastic video. Thank you so much!

[@lovattphysics6366]

👍👍👍

[@talhamuhammad9843]

Thank you.

[@sahibzadamohsinsaleem4410]

best explaination sir ,keep it up

[@fatemahalshammary3352]

Thank you! This was so helpful!🌸🌸🌸🌸

[@idkmy_name7705]

this was so clear thank u! i read the textbook multiple times and was so confused b4

[@Daniel-zi3hu]

Thank you my g.....This helped alot 😁

[@brandonheera4336]

Your video helped me sm

[@sayanhalder6752]

Thank you so much

[@anukamahabirsingh9254]

Thank you so much!!!

[@cappybaraeats]

4:06 why is it flemming's left hand rule? how do we know?

[@noveyhijapon7650]

Thank you for this video sir

[@diyagowda21]

hi could you clarify what happens to beta plus radiation in an electric field and magnetic field

[@salarrana9951]

Your videos are epic ace explanation
Would appreciate if you used a different marker it gives me chills down the spine xd

[@lovattphysics6366]

Haha noted! Will upgrade it :)

[@satyakiray6856]

Couldn't understand the application of Fleming rule in magnetic field

[@lovattphysics6366]

SmoidRay the rule is just about which direction your fingers are pointing. First finger points in the direction of the field, second in the direction of movement of positive charge (the opposite direction to a moving beta particle) and the thumb gives you the resultant force. Hope that helps!

[@satyakiray6856]

@@lovattphysics6366 Thanks a lot

[@ahmeders]

Thank you so much sir

[@joysiyumbwa1882]

Thank you sir helped alot

[@dhruvkanjaria2741]

Excellent work 👍👍👍👌

[@lovattphysics6366]

🙌🙌🙌

[@PrakashKumar-gn1ji]

Thank you

[@user-rc6kh2ik7h]

tysm tysm!!!

[@bholahzahir3874]

You didnt talk about nuclear fission,nuclear fusion is it possible you make another part?

[@omarelnahas8668]

Thank you sir🙏

[@lovattphysics6366]

You’re welcome!

[@Sagar-KumarIITPATNA]

THANKS SIR JEE

[@jiaee7839]

Can I know why the second finger is pointing to the west but not to the south east or north

[@lovattphysics6366]

Jia Ee I think you’re talking about the magnetic field bit around 4:30? In which case this is Flemings left hand rule, which tells us the force on a conductor in a magnetic field. You have to always use your hand in the same position, and the first finger has to point in the direction of the field and the second finger has to point in the direction of movement of positive charge. In the case of the electron (which is negatively charged) the ‘movement of positive charge’ must be in the opposite direction to the movement of the electron, because if negative charge is moving to the right, then the left side is getting less negative = more positive, so positive charge can be said to move left. Hope that helps!

[@lovattphysics6366]

Jia Ee I think you replied again but I cant see it on here for some reason. The second finger has to point in the direction of movement of positive charge. The electron is moving right. So the movement of negative charge is to the right. Negative and positive are opposites so the movement of positive charge must be the opposite way to the movement of negative charge. So if the negative charge is moving right, the finger must point left. Hope that is more clear!

[@jiaee7839]

@@lovattphysics6366 Ok tq very much 😊

[@devilliersduplessis7904]

Isn't gamma a photon which is a particle and has mass?

[@lovattphysics6366]

De Villiers du Plessis - yes, the gamma ray is a photon, which can be thought of as a particle. However, it has no mass and moves at the speed of light so it is very different to the alpha and beta particles. The most important thing that it does in this situation is transfer energy. That’s why it is easier to think of it purely as a wave (until you study Alevel or IB!)

[@sahibzadamohsinsaleem4410]

this video is up to the mark. honsetly. but I got confused on the deflection of alpha and beta in the electric field as my book (Cambridge olevel by Heather...) represents alpha deflecting more than beta in the electric field which is totally against your provided lesson. can you help me out with some valid resources?i really depend on your quick response as your answer means a lot to me, my exams are at the top of my head. kindly answer me as soon as possible and thank you for such content .it really helped me a lot.

[@ajsenju9383]

particles are accelerated due to weak nuclear force,so electrically charged forces of the electrodes oppose that vector, alpha is a general forceful emission but beta on the other hand a decomposition of neutron,similar velocity but alpha has much mote force(Newton's laws), so it would take more work,ie,more distance to express its force(w=fscosQ),and hence less deflection of a particle

[@isabellaheart3316]

thanks xoxoxoxoxoxoxoxoxoxo

[@sajidemad7427]

Spectacular and simple much appreciated sir thank you very much!

[@yiyiy7opopopop818]

Can UV radiation be counted as background radiation

[@lovattphysics6366]

yiyiy7 opopopop nope. This kind of radiation (alpha, beta, gamma) is nuclear radiation, in that it comes from the nucleus of an atom. UV is not nuclear radiation so it doesn’t count here. Hope that helps!

[@yiyiy7opopopop818]

LovattPhysics yes it does , thank you so much .

[@joethecreeper8178]

Looking at this an hour before exam what could go wrong lol

[@souravnagpal5118]

Gr8888

[@skcathk]

:D

[@Mkhwlani]

oba

[@salmanshakeel2483]

thank u so much it was really helpful