NEED to know THESE for Physics exams - line of worst fit, error bars

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  • Опубліковано 17 гру 2024

КОМЕНТАРІ • 19

  • @introvertedhhedgehog3664
    @introvertedhhedgehog3664 2 роки тому +16

    Never seen someone this excited to teach physics
    Thanks for the vid, got my last physics exam on Thursdsy

    • @zhelyo_physics
      @zhelyo_physics  2 роки тому

      Thank you! Good luck!

    • @neuropcs5879
      @neuropcs5879 2 роки тому +2

      His passion for physics makes me more excited to learn! I love it.

  • @figsigger6422
    @figsigger6422 2 роки тому +14

    I could listen to you say uncertainty all day its so satisfying 😂. Also would you be able to make a video on tips for aqa paper 3 on section a? Thank you, your videos have been an extremely useful resource.

    • @HomelessCoaching
      @HomelessCoaching 2 роки тому +2

      Yes would really really really appreciate paper 3 section A as the questions are really confusing I'm absolutely begging you from the bottom of my heart sir

  • @anonymooseuser2150
    @anonymooseuser2150 2 роки тому +5

    Best channel on UA-cam

  • @isagiyoichi5207
    @isagiyoichi5207 2 роки тому +14

    Only 2 more days till A level physics exams are done, lol this exam period went by so quickly. Could I ask what kind of videos we will be getting today/tommorow just before the exam?

    • @zhelyo_physics
      @zhelyo_physics  2 роки тому +6

      I have too many plans but too little time! I want to concentrate on some hard problem solving as this really is the key to paper 3.

  • @PB-xo7wm
    @PB-xo7wm 2 роки тому +3

    Great video, keep it up! Just wondering when you mentioned the absolutely uncertainty in the gradient being the difference between the best and worst gradient, does this always work? I saw another video stating it’s the difference divided by 2 so now I’m a bit confused.

    • @zhelyo_physics
      @zhelyo_physics  2 роки тому +1

      mm I think maybe you have saw the video on which we talk about a data set and if that's the case, a.u. is half the range? For gradients, it works.

  • @Moebius_E
    @Moebius_E Рік тому

    Thank you so much for all the videos you made you’ve helped me so much with all my revision 💜

  • @sabzz3720
    @sabzz3720 2 роки тому

    You see when you are trying to find absolute uncertainty from ln table I saw your method in 2019 paper 3 ocr . E.g where you do ln 340 - ln 260 divided by 2. Basically half the range. Does this method work if the table was log(lg)values instead of ln? I think this question could come in paper 3 2022.

    • @zhelyo_physics
      @zhelyo_physics  2 роки тому

      yep, it should work, log and ln are basically the same function just a different base.

  • @vek5661
    @vek5661 Рік тому +1

    you know how there is 2 lines of worst fit which one do i use when finding the uncertainties.

  • @gjeraldh2989
    @gjeraldh2989 2 роки тому

    11 HOURS LEFT

    • @gjeraldh2989
      @gjeraldh2989 2 роки тому

      It went well! Thanks for the videos bro.
      There was a question on radiation that I messed up, but I must have gotten about 4 marks on it. It involved determining beta +/- and gamma sources.
      The other 6 marker was covered in your waves practicals video, so that was very useful. Thanks again.