Damping & Resonance - A-level Physics

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00:00 Damping (light, heavy & critical)
03:03 Resonance -
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[@ScienceShorts]

Re-uploaded due to a mistake. Thanks to Henry Bamber for spotting!

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5 years later still keeping up the tradition

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Last minute revision squad

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5 hours until exam starts

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good luck everyone!

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U missed something Becoming my physics teacher

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I really appreciate teachers who explain to their students as if they were babies.Thank you. This is really helpful

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I have an exam at 9 AM and rn it is 8 AM. I am just so thankful to you for making this so easy for me.

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how did the exam go?

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You explained this better than my 3-hour physics lecture. Excellent!

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Your videos are way better than the stuff my teacher did in class. Thank you so much!!

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simple yet informative....perfect!

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Thank you! Really helpful for my part 1 anaesthetic examination!

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Wish more people could see this guy's videos and appreciate him like I do.

[@DarkElf7345]

You've saved me. I finally understand damping 😂

[@doreenbachmann5508]

That was really well explained thank you!

[@figaro-dg5c5]

Thank you for explaining this. I learned alot. You are really good at explaining things.

[@soaksoka]

Thank you so much! You're a great teacher :D

[@m.huzaifa2127]

Perfect elucidation.

[@raisinjeffreys2481]

Thanks for the helpful video!!

[@kojonketia9231]

Thank you for your service!

[@hayabasunaid1404]

such an amazing example!

[@joshplayz474]

Interestingly the resistive force and the restoring force are 90 degrees out of phase also for damping. Since the air resistance force is proportional to the negative of the speed (or speed squared).

[@geoffphillips8183]

Great vids, thanks. If you increase the mass of a resonating object will resonant freq increase too? Thanks

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well explained it made look this topic so easy thanks 😀

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Very Helpful Thanks a Lot

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Really good explanation

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[@shabnamkavakeb648]

Thanks. It was very helpful

[@Khalilo0o]

thanx, great work

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Great stuff!

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Thank you very much ❤️❤️❤️❤️

[@tiaanjansevanrensburg2762]

Thank you very much.

[@Ray-ye8gz]

notes are noted 👍👍👍

[@mochii2229]

Excited for the exam tomorrow

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Thnx man super super useful

[@natalialotam8087]

that was really useful *thumbs up*

[@UniChargeHome]

Thank you so much

[@conceptphysicsandmathemati2257]

Good job

[@magn8195]

great video

[@rodericksibelius8472]

So all that theory, Sir, How do we derive the time 't', (light damping case) or when that bob pendulum swing has stopped oscillating for practical reasons?

[@amanali2052]

Thanku so much for your effort sir , I got question # Resonance is sharper for heavy damping or light damping? Please answer.

[@skullz9366]

i have a question so does the external frequency match the natural frequency? for example a wine glass has a natural frequency at 40(example) an external force such as a singer must reach the frequency or higher in order for resonance to occur and for the glass to break?

[@rockfist6866]

thnx for the help

[@parthivjugun8756]

Hi , was really useful and just wanted to ask about the destructive nature of resonance for A levels and i hope this does not get lost in the comments. Also its the 100th comment :)

[@jewelsyriac]

Wow.. Just wow 👍

[@unluckygamer8821]

What’s the difference between heavy damping and overdamping?

[@andrianoanne-marie4750]

Really helpful 🤝

[@jeremydunn3171]

You just may have literally explained the the logistics & science of how megalithic structures were built!!!!

[@user-vy8of5bn9u]

Ty mr

[@farisamin9426]

Thanks

[@callumpaton151]

I was taught that what you called heavy damping is actually overdamping. Heavy dampening is just like light dampening but the amplitude decreases faster, that’s what I learnt at a level

[@flyingdutchman109]

same here

[@callumpaton151]

Hehe

[@wr9411]

AQA?

[@rozlianahjopius5139]

same

[@tusharraj7020]

It's Damping

[@BooleanDuck]

Just to clarify, if the natural frequency of a system was 5Hz, would a driving force of frequency 1Hz or 10Hz (or both) cause the system to resonate? Thanks again for all your videos!

[@ScienceShorts]

+Tim Forrer Great question. Driving frequency being a fraction of the natural frequency is not something we talk about at A-level, so we say 1Hz would not result in resonance. 10Hz, yes.

[@vijayjosh5895]

@@ScienceShorts 10 Hz should not.

[@kyliek.9481]

Damping is in phase with restoring force?

[@emmacole2296]

What does the driving force being 90deg out of phase with the restoring force mean?

[@sinthum3206]

Why does it need to be 90 degrees out of phase with the restoring force? Thanks for the videos!!!

[@mrmomo42]

it cancels out the restoring force from bringing it back to equilibrium thus increases the amplitude

[@walterwhite4699]

Cos90=0

[@muhammadahmed6038]

Thank you so much! But 1 question will the frequency be affected due to change in amplitude ?

[@sar6901]

no, the frequency always remains constant

[@muhammadahmed6038]

Thanks

[@areebali9298]

how do you find the perfect resonant frequency to get back the highest amplitude?

[@samuelakalewold4870]

thank u sir

[@chloetang6694]

At 3:57- how come it increases the amplitude because if it is 90 degrees out of phase shouldn't destructive interference happen, so wouldn't the amplitude decrease?

[@waliul280]

you didnt upload about critical damping, light damping and heavy damping, did u ?

[@productivity7587]

4:06 what sorcery!

[@buhayraashah6305]

Gr8 vid

[@kamal3702]

i didn't get the 90 degrees bit, why would the amplitude increase if its out of phase?

[@JillYva]

I'm regards to the graph of damping how would you show or explain that it is decreasing exponentially? Is there a formula

[@ScienceShorts]

+Lil'Jinae Nafamard Nope, no formula with it. The only question you could be given is for example "the amplitude decreases by 5% every second - what will it be after 10 seconds?", so just amplitude x 0.95^10.

[@vijayjosh5895]

Please provide a mathenatical approach with a limit format, say when Applied Freq -> Narural Freq, Amplitude -> Infinity.

[@ScienceShorts]

No.

[@Ray-ye8gz]

how great ;))

[@NishaNiki]

is this resonce is the cause for breaking glass when singing....if so...what happens there???

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This helped me to understand Economics term😂

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is there a video on electric fields for GCSE?

[@aliahmad8701]

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[@hamdimohammed2541]

What about over damping and under damping? Which one is the same as light and which one is the same as heavy?

[@pinkystar8792]

Over damping is the same as heavy and under damping is the same as light.

[@Samuel89jack]

Thank you for this video!

[@ajays8044]

One of the ebst

[@RahmaElsaeed-cf6ru]

Good but you didn't say why if driving force frequency = multiple of natural frequency ,it will has the same effect ... What I think ,, if this happened ,,, the bridge will break ...??

[@petergoh5628]

What are some applications of heavy damping?

[@puddleduck1405]

an application for HEAVY damping are door dampers, they are used to prevent doors from completely slamming shut. and an application for CRITICAL damping is a car suspension system to prevent the car from oscillating after hitting a bump in the road

[@TheGamingWattsit]

What is natural frequency?

[@trynottolose6209]

what about overdamping force ?

[@fakexpoxpose273]

are you steve mould?

[@86rmb]

When he says sin wave but means cos lol

[@ScienceShorts]

Same function just shifted lol

[@86rmb]

@@ScienceShorts I know just found it funny, also your videos are actually so helpful my teachers are terrible and I've learnt most of what I know from KZbin so thank you

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What about forced vibrations?

[@Ali_hassan421]

.

[@xinyu7952]

1:06 - 2:47

[@moezjadran6720]

Why does it not go on the negative x axis during heavy damping

[@two697]

Because it does not complete an oscillation

[@moezjadran6720]

@@two697 🙌🙌

[@chinmayvashishtha]

*god*

[@islamzindabaad6153]

greater

[@oneinabillion654]

Hi, could u do communication system. Like FM and AM, bandwidths, etc.. Also, please do electronics. Like amplifier and etc. If possible, please make a vid on medical imaging as well. These are the only chapters that are missing for CIE A level Physics syllabus this year

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One in a billion did he make these videos? Because i also need them😅

[@oneinabillion654]

@@sebastianoozomaki5831 Nope. I found another guy. Go search DrPhysics and go to playlist and press the Alevels one. Everything is there.

[@sebastianoozomaki5831]

One in a billion thank youu!

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I'm came here to understand better the Sakura Synth of Fl studio...

[@champion171299]

4:07 and 4:28 Magic!! π/2 to 2π then back again! xD

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Thanks