Physics with Keith
Physics with Keith
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Demonstration of using Reverse Polish Notation (RPN) to solve circuit quantities.
⭐️ 𝗟𝗶𝗻𝗸𝘀 ⭐️
🔗 Main website: www.physicswithkeith.com
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มุมมอง: 74

วีดีโอ

Podcast Episode 2: Let him enjoy his ignorance
มุมมอง 52วันที่ผ่านมา
In the second episode, I talk about Isaac Newton's relationship with his contemporaries.
Podcast Episode 1: Parma Violets
มุมมอง 1132 วันที่ผ่านมา
In my first episode of my new podcast, I explore the strange connection between Parma Violets and the famous Physicist: Michael Faraday.
Creating lightning in a jar... a simple Geissler tube
มุมมอง 6K21 วันที่ผ่านมา
Creating lightning in a jar... a simple Geissler tube
Falling with air resistance (Stoke's law) working through the mathematics
มุมมอง 185หลายเดือนก่อน
Falling with air resistance (Stoke's law) working through the mathematics
Exploring centrifugal (yes, centrifugal) force
มุมมอง 900หลายเดือนก่อน
Exploring centrifugal (yes, centrifugal) force
Investigating stationary waves on a string | A-Level Physics required practical
มุมมอง 137หลายเดือนก่อน
Investigating stationary waves on a string | A-Level Physics required practical
Measuring internal resistance and emf of a battery | A-Level Physics Required Practical
มุมมอง 3172 หลายเดือนก่อน
Measuring internal resistance and emf of a battery | A-Level Physics Required Practical
Measuring the resistivity of copper | A Level Physics Practical
มุมมอง 3452 หลายเดือนก่อน
Measuring the resistivity of copper | A Level Physics Practical
Measuring g using free fall method | acceleration due to gravity | A Level Required Practical
มุมมอง 4012 หลายเดือนก่อน
Measuring g using free fall method | acceleration due to gravity | A Level Required Practical
Measuring Young's Modulus of nichrome wire | A-Level Physics Required Practical
มุมมอง 2392 หลายเดือนก่อน
Measuring Young's Modulus of nichrome wire | A-Level Physics Required Practical
Why are there eight unique gluon states, and not six or nine in quantum chromodynamics?
มุมมอง 2123 หลายเดือนก่อน
Why are there eight unique gluon states, and not six or nine in quantum chromodynamics?
When intuition and mathematics collide, mathematics wins
มุมมอง 2503 หลายเดือนก่อน
When intuition and mathematics collide, mathematics wins
Measuring Planck's Constant | A-Level Physics
มุมมอง 8403 หลายเดือนก่อน
Measuring Planck's Constant | A-Level Physics
Watching a pattern form for 10 minutes | Not an interesting video unless you're a nerd like me
มุมมอง 994 หลายเดือนก่อน
Watching a pattern form for 10 minutes | Not an interesting video unless you're a nerd like me
GCSE Physics Topic 16: Space (summary)
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GCSE Physics Topic 16: Space (summary)
GCSE Physics Topic 15: Electromagnetism (summary)
มุมมอง 2914 หลายเดือนก่อน
GCSE Physics Topic 15: Electromagnetism (summary)
GCSE Physics Topic 14: Light (summary)
มุมมอง 2514 หลายเดือนก่อน
GCSE Physics Topic 14: Light (summary)
GCSE Physics Topic 13: Electromagnetic waves (summary)
มุมมอง 2534 หลายเดือนก่อน
GCSE Physics Topic 13: Electromagnetic waves (summary)
GCSE Physics Topic 12: Wave properties (summary)
มุมมอง 3014 หลายเดือนก่อน
GCSE Physics Topic 12: Wave properties (summary)
GCSE Physics Topic 11: Force and pressure (summary)
มุมมอง 884 หลายเดือนก่อน
GCSE Physics Topic 11: Force and pressure (summary)
GCSE Physics Topic 10: Force and motion (summary)
มุมมอง 964 หลายเดือนก่อน
GCSE Physics Topic 10: Force and motion (summary)
GCSE Physics Topic 9: Motion (summary)
มุมมอง 924 หลายเดือนก่อน
GCSE Physics Topic 9: Motion (summary)
GCSE Physics Topic 8: Forces in balance (summary)
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GCSE Physics Topic 8: Forces in balance (summary)
GCSE Physics Topic 7: Radioactivity (summary)
มุมมอง 2734 หลายเดือนก่อน
GCSE Physics Topic 7: Radioactivity (summary)
GCSE Physics Topic 6: Molecules and matter (summary)
มุมมอง 2264 หลายเดือนก่อน
GCSE Physics Topic 6: Molecules and matter (summary)
GCSE Physics Topic 5: Electricity in the home (summary)
มุมมอง 2414 หลายเดือนก่อน
GCSE Physics Topic 5: Electricity in the home (summary)
GCSE Physics Topic 4: Electric circuits (summary)
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GCSE Physics Topic 4: Electric circuits (summary)
GCSE Physics Topic 3: Energy resources (summary)
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GCSE Physics Topic 3: Energy resources (summary)
GCSE Physics Topic 2: Energy transfer by heating (summary)
มุมมอง 2415 หลายเดือนก่อน
GCSE Physics Topic 2: Energy transfer by heating (summary)

ความคิดเห็น

  • @chargeriderepeat7024
    @chargeriderepeat7024 23 ชั่วโมงที่ผ่านมา

    And people wonder why so many kids get put off physics

    • @PhysicswithKeith
      @PhysicswithKeith 23 ชั่วโมงที่ผ่านมา

      Interestingly the school where I work bucks the trend, and physics is amongst the most popular subjects at A-Level

  • @StephenPickells-bi2ii
    @StephenPickells-bi2ii วันที่ผ่านมา

    The first time I ever saw the word random was in Mad Magazine. They used to have a random sampling of readers’ letters. Or should that be reader’s letters?

  • @cessromer7078
    @cessromer7078 วันที่ผ่านมา

    It is possible to program the oscilloscope using VISA driver with SCPI commands in VBA code or even Python to automate and measure exactly the difference of delta x and also set the generator for different source of frequency and see the correlation using the real values of the total distances

  • @psd9850
    @psd9850 วันที่ผ่านมา

    Like biology is even real science. 😂

    • @PhysicswithKeith
      @PhysicswithKeith วันที่ผ่านมา

      A "lesser science", as I call it

  • @paulholloway7666
    @paulholloway7666 วันที่ผ่านมา

    I've had metal land on my hand that was somewhere between 2000 and 3000 deg F. It didn't hurt at all. Why? Because it was a spark from a sparkler and while it had a very high temperature it contained very little heat.

  • @VanessaJantz
    @VanessaJantz วันที่ผ่านมา

    Thanks for sharing such valuable information! Just a quick off-topic question: My OKX wallet holds some USDT, and I have the seed phrase. (air carpet target dish off jeans toilet sweet piano spoil fruit essay). How can I transfer them to Binance?

    • @PhysicswithKeith
      @PhysicswithKeith วันที่ผ่านมา

      Couldn't have put it better myself

  • @chargeriderepeat7024
    @chargeriderepeat7024 วันที่ผ่านมา

    Ok tell me the difference between brake horsepower and torque.

    • @PhysicswithKeith
      @PhysicswithKeith วันที่ผ่านมา

      Brake horsepower is a unit of power; 1 BHP is approximately 746 W. Torque is a quantity; it is the turning effect of the force, measuring in units of Nm. One's a unit, one's a quantity. They're very different things

  • @_xBrokenxDreamsx_
    @_xBrokenxDreamsx_ 2 วันที่ผ่านมา

    'to heat' means to increase the temperature of something. 'heat' generically refers to the ambient temperature of a medium above the human thermal neutral zone. temperature is an objective measurement and heat is the subjective sensation of a range of temperature.

    • @PhysicswithKeith
      @PhysicswithKeith 2 วันที่ผ่านมา

      This is very, very incorrect. Heat is measured in joules, temperature is measured in °C, K, or °F if you're peculiar. To say 'heat refers to temperature' is very wrong.

  • @PhysicswithKeith
    @PhysicswithKeith 2 วันที่ผ่านมา

    Now I'm waiting for the "human error IS a thing" responses 🙄 I've never seen a mark awarded for "human error" on a GCSE Physics exam, and only one on an A-Level Physics exam as a compensation mark - you would have got more marks for talking about the source of random error. Writing "human error" on a physics exam is a really good way of denying yourself marks. Avoid it!

  • @chargeriderepeat7024
    @chargeriderepeat7024 2 วันที่ผ่านมา

    Should catholics be worried about this?

  • @djwilliams8
    @djwilliams8 2 วันที่ผ่านมา

    OMG a student bought me one of those, and I have never noticed. How can I now possibly wear this again.

    • @PhysicswithKeith
      @PhysicswithKeith 2 วันที่ผ่านมา

      A perfectly good tie contaminated with a lesser science 😂. My mother bought me some 'sciency' socks for Christmas this year. One pair was all about DNA, one pair was about cell structures, one pair was about organic chemistry, one pair was about inorganic chemistry. One pair had some mathematics on it, I'm happy to wear them. No physics on the socks though 😔

  • @Handlebar-MustDash
    @Handlebar-MustDash 2 วันที่ผ่านมา

    The artist may have been showing the derivation of the term nuclear.

  • @XnopytXnopyt
    @XnopytXnopyt 2 วันที่ผ่านมา

    One note to this otherwise well-made video: The infix notation calculator mode to which you compared postfix (RPN) was a simple type of calculator, only displaying a single number at a time, with operations operating on the number. Such is the style of most cheap non-scientific calculators. The postfix input style is certainly much better in many aspects than this demonstrated simple infix input you demonstrated, especially for quick calculations. However, most UK students from Year 7 and onwards will not be using such calculators, but instead calculators with more advanced displays, where an algebraic expression is visually built before being evaluated, so this is not a fair comparison. This algebraic display of modern scientific calculators offers unique advantages which both simple infix and postfix ones cannot. By narrowing the conceptual gap between expressions as written down and as typed into a calculator, these calculators are much easier to use for creating, editing, evaluating, (and even repeatedly reevaluating with different values) complex equations, especially for visually minded students. This is not to doubt the efficacy of an old-school postfix calculator in the hands of someone intimately familiar with it, but there is still something to be said for preferring to facilitate advanced algebraic reasoning over optimizing ergonomical input speed.

    • @PhysicswithKeith
      @PhysicswithKeith วันที่ผ่านมา

      I shall have to do a comparison video for newer input logics 👍 good suggestion

  • @OghamTheBold
    @OghamTheBold 2 วันที่ผ่านมา

    UC ( _Uncertain_ Calibration) leads to _grave_ errors

  • @OghamTheBold
    @OghamTheBold 2 วันที่ผ่านมา

    I live in a _region_ and won the college Physics prize 1984 they put me in a forced labour camp-I also spoke advanced Maths a year early-they deny me a _field_ to build 250,000 homes

  • @dom4534
    @dom4534 2 วันที่ผ่านมา

    Next, Farradays law

  • @antonylawrence7266
    @antonylawrence7266 2 วันที่ผ่านมา

    Latin is the maths of biology

  • @hamarticdownfall9919
    @hamarticdownfall9919 3 วันที่ผ่านมา

    Interesting quirk of two different areas of study liking latin alot when it comes to naming things Pretty much just meaning middle bit As normal, all the annoying and frustrating parts of english come from what we nicked from other languages, even multi use words

    • @PhysicswithKeith
      @PhysicswithKeith 3 วันที่ผ่านมา

      The light switches in my lab don't work, so if I want darkness I have to turn the lights off using the circuit breakers on the wall. As they're central to the whole lab, I refer to them as the "nuclear switches" 😂

  • @Mcboogler
    @Mcboogler 3 วันที่ผ่านมา

    Random would be if the die rolled a "P" or a "Skateboard" instead of number. Nothing about a die roll is unpredictable.

  • @griggpev
    @griggpev 3 วันที่ผ่านมา

    foolish interpretation. nothing “prevents” me from predicting anything. what, you need a loicense to predict now? take your British understanding elsewhere. randomness in the case you made out means all predictions are equally likely. the fools in britland smh. i think we should send them all to an island and make them eat their beans on toast without internet so as to not bother the rest of the world with their “understanding” of a language they lost hold of centuries ago. blimey aye innit govna

  • @scottb9997
    @scottb9997 3 วันที่ผ่านมา

    I thought random basically meant the outcome is not determined by cause where as what youve described is chaos True random is reality doesnt exist so we just use the words to describe extreme chaos

  • @antonylawrence7266
    @antonylawrence7266 3 วันที่ผ่านมา

    Just like in life prof

  • @hayeopreis
    @hayeopreis 3 วันที่ผ่านมา

    A region is a part of something with certain boundaries, a magnetic field does not have boundaries, so it is not a region.

  • @jamesbenning9665
    @jamesbenning9665 3 วันที่ผ่านมา

    You said an area is a two-dimensional plane. I'm not sure this is mathematically correct as areas can comprise non-planar surfaces such as on our globe for example.Its perhaps more accurately used to describe a portion of a surface.

  • @mrstevo32100
    @mrstevo32100 3 วันที่ผ่านมา

    If you're doing something thats without method or conscious decision then surely that's unpredictable and therefore random.

    • @PhysicswithKeith
      @PhysicswithKeith 3 วันที่ผ่านมา

      I'm not sure it follows that "without method or conscious decision" means "unpredictable" 🤔

    • @mrstevo32100
      @mrstevo32100 3 วันที่ผ่านมา

      @PhysicswithKeith I don't know, was just thinking out loud, I'm not the best educated in words and meaning of them but I'd say if you're doing something for the first time and don't know the method, you can't predict what's going to happen.

    • @PhysicswithKeith
      @PhysicswithKeith 3 วันที่ผ่านมา

      I think if someone pushes me out of a plane I can make a good prediction of what will happen 🤔 still, I'm not sure either

    • @mrstevo32100
      @mrstevo32100 3 วันที่ผ่านมา

      @@PhysicswithKeith yep, you'll fall out the plane, but where will you land? How long will it take?

  • @hongkonger885
    @hongkonger885 3 วันที่ผ่านมา

    Not to be that guy but, technically, dice rolls are not "random", but "chaotic". Rolling dice are not "random" as they produce deterministic outcomes. With enough information on how you roll them (velocity, air resistance, shape, density, imperfections etc.) you can predict if it rolls a 6 or not. With that being said, no physical processes can be "random", since if you apply the laws of physics to every minute detail, you should be able to predict the result. I guess "chaotic" and "random" can stay synonymous for simple non-quantum mechanical cases.

    • @PhysicswithKeith
      @PhysicswithKeith 3 วันที่ผ่านมา

      Quite right 🙂

    • @respair1385
      @respair1385 3 วันที่ผ่านมา

      I beg to differ. Technically, you don't go through all that trouble. Putting aside the unfeasibility of such an arduous task, if you take it to that level of detail, your measurements can still come with a degree of error. So when you roll the dice, for many different reasons, you still have no idea what the outcome will be. If you can't predict it, then it's random. We don't live in the world of hypothetical events.

    • @immaculate2491
      @immaculate2491 3 วันที่ผ่านมา

      ​@@respair1385 wrong, the odds are 50/50 it'll either happen or it won't

  • @jamesh1758
    @jamesh1758 3 วันที่ผ่านมา

    Now this one is crazy (in a good way). I’d never thought of it like that but yes, the term “mass destruction” is oddly fitting for nuclear weapons. Weapon of mass conversion to energy doesn’t have the right ring to it. 😂😂😂

  • @lukethellama5591
    @lukethellama5591 3 วันที่ผ่านมา

    keith Johnson?

    • @PhysicswithKeith
      @PhysicswithKeith 3 วันที่ผ่านมา

      Nope, different Keith 👋

    • @lukethellama5591
      @lukethellama5591 3 วันที่ผ่านมา

      @PhysicswithKeith aw well love your videos lol keep trying!!

  • @lukethellama5591
    @lukethellama5591 3 วันที่ผ่านมา

    steel rule on top

  • @lukethellama5591
    @lukethellama5591 3 วันที่ผ่านมา

    love it

  • @fdm698
    @fdm698 3 วันที่ผ่านมา

    The real question is was what he said subjectively or objectively random? 😁

  • @rodrigoqteixeira
    @rodrigoqteixeira 3 วันที่ผ่านมา

    As a programmer I agree. I definilly don't want the player predicting the outcome of rng

  • @chargeriderepeat7024
    @chargeriderepeat7024 4 วันที่ผ่านมา

    You cant have an area without a 3rd dimension.

    • @PhysicswithKeith
      @PhysicswithKeith 3 วันที่ผ่านมา

      That's true for vector areas, not for scalar areas, nevertheless areas are still 2D

  • @benholbrook8923
    @benholbrook8923 4 วันที่ผ่านมา

    Felt? Felt? I'll stop you there. Magnetic poles surely can't feel surely? Do you mean act upon? Don't speak English speak physics instead. Imitation is the sincerest form of flattery, keep up the good work! Love the Astronomy vids.

    • @PhysicswithKeith
      @PhysicswithKeith 4 วันที่ผ่านมา

      Spot on 😂 Thank you for your kind message

  • @LensonGaming
    @LensonGaming 4 วันที่ผ่านมา

    This series is great, I’m never gonna lose a mark for ambiguity again 😂

    • @PhysicswithKeith
      @PhysicswithKeith 4 วันที่ผ่านมา

      If only it were that simple 😂

  • @_xBrokenxDreamsx_
    @_xBrokenxDreamsx_ 4 วันที่ผ่านมา

    a 'magnetic field' is the aelectrodynamic, polarized, dimensional release of aelectrostatic non-dimensional tension. magnetism doesn't exist and a field is just an area of grass.

  • @titusdaniel
    @titusdaniel 4 วันที่ผ่านมา

    Just going out on a limb and guessing that SR stands for "spherical reflector." It's in your own description

  • @kcg26876
    @kcg26876 4 วันที่ผ่านมา

    Does "region" take into account 4th dimension of time?

  • @Oliveatethesun-bx9vq
    @Oliveatethesun-bx9vq 4 วันที่ผ่านมา

    Genuinely learned more physics from this channel than from 3 years of lessons at school.

  • @desmo750f1
    @desmo750f1 4 วันที่ผ่านมา

    Richard Box was artist in residence at Bristol University Physics Department in about 2005. He put 1300 fluorescent tubes in the ground in a hexagonal grid underneath a set of 400kV power lines. They glowed in the electric field but so dimly that the glow was only visible in the dark. They day I visited it had snowed, which added something to the effect, though it meant he had to dry the tubes to get rid of the conduction path on the outside between the ends.

  • @lavasharkandboygirl9716
    @lavasharkandboygirl9716 4 วันที่ผ่านมา

    This dude is a good teacher

  • @THEORHETICALFISH
    @THEORHETICALFISH 4 วันที่ผ่านมา

    Too right Keith, too right

  • @desmo750f1
    @desmo750f1 4 วันที่ผ่านมา

    "There's a risk of undiagnosed heart conditions being diagnosed by it".

    • @PhysicswithKeith
      @PhysicswithKeith 4 วันที่ผ่านมา

      Maybe CLEAPSS being overly cautious, but we'd be daft to ignore their advice 😔

  • @Ben_-T
    @Ben_-T 4 วันที่ผ่านมา

    Correct me if I’m wrong but my physics teacher always says that thermal energy should just be referred to as kinetic energy. Good video. Makes us realise how although science is the world around us spoken language has developed to contradict our knowledge.

  • @JeffDAPG
    @JeffDAPG 4 วันที่ผ่านมา

    No, area is 3 or more dimensions

  • @kingmiguel204
    @kingmiguel204 4 วันที่ผ่านมา

    Thanks Keith 👍

  • @fernandojubany687
    @fernandojubany687 5 วันที่ผ่านมา

    Brilliant, it is so nice to be able to see the steps towards such important equation. Thanks

  • @olgregg3233
    @olgregg3233 5 วันที่ผ่านมา

    Volume seems more fitting.

    • @PhysicswithKeith
      @PhysicswithKeith 5 วันที่ผ่านมา

      I don't think so; electric fields, magnetic fields, and gravitational fields extend to infinity. Describing them as 'volumes' makes them sound finite.

  • @Masterraccoon-np3kl
    @Masterraccoon-np3kl 5 วันที่ผ่านมา

    Thank you, this was surprisingly entertaining!

  • @sisyphuscranerigging7792
    @sisyphuscranerigging7792 5 วันที่ผ่านมา

    One day some student is going to explain what magnetism actually is and its place among the four forces of physics. That will be a good video and it'll shut the pedants up!