How to calculate UNCERTAINTY -percentage uncertainty, uncertainty of a value & reducing uncertainty.

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  • Опубліковано 16 гру 2024

КОМЕНТАРІ • 54

  • @nadssalmaas
    @nadssalmaas 6 місяців тому +34

    Wish i saw this before the exam 😢

  • @Sarahp25090
    @Sarahp25090 6 місяців тому +5

    I was watching this video last night
    As well as your mitotic index video and I just wanted to say a massive thank you ! I would not have been able to answer some of the exam questions that came up today without them ( and all your other wonderfully helpful videos too! )

    • @MissEstruchBiology
      @MissEstruchBiology  6 місяців тому

      I'm so glad! So pleased I uploaded this just in time!

  • @beecheffects4694
    @beecheffects4694 6 місяців тому +4

    This helped me in today's paper!! THANK GOD I WATCHED THIS AT 11AM

    • @beecheffects4694
      @beecheffects4694 6 місяців тому +2

      You needed to use the idea of the two judgements in using a ruler!!

    • @SciVerse-k9x
      @SciVerse-k9x 6 місяців тому

      @@beecheffects4694 ong. I had a grin in my face when that question came up. It’s like the stars were aligned for me not just for that question but honestly for the whole paper. Would you say the paper was unusually easy?

    • @MissEstruchBiology
      @MissEstruchBiology  6 місяців тому

      I know!!! Great timing

  • @marthanorton9239
    @marthanorton9239 6 місяців тому +1

    this litterally just saved my life in bio paper 1 today!!! thank you smmm

    • @MissEstruchBiology
      @MissEstruchBiology  6 місяців тому +1

      ahh was there about uncertainty question??

    • @Prime4Playz
      @Prime4Playz 6 місяців тому

      @@MissEstruchBiologyyeah for 2 marks

  • @SciVerse-k9x
    @SciVerse-k9x 6 місяців тому +2

    Honestly a life saver. An uncertainty question came up in the Aqa alevel paper 1 today and it was exactly like what you taught in the video. Thank you for the free 2 marks😊

  • @notme2472
    @notme2472 6 місяців тому +11

    hi miss, could you pls update your required practicals playlist so that they are in order?? also there are some videos as well in that playlist that are not related. TYSM :) xx

  • @human-kg8nu
    @human-kg8nu 6 місяців тому +5

    thanks you could you also make a video on the different exam key words like suggest and evaluate and describe because sometimes I struggle to understand what the question is asking me

  • @Prime4Playz
    @Prime4Playz 6 місяців тому +5

    There was a question about uncertainty in paper 1 it goes like:
    A ruler with 1 mm as smallest graduation mark is used to measure something, and then it says what would be the percentage uncertainty to measure a 4mm reading. Something like that,
    I got like 25 percent as my answer.
    Does anyone get the same answer?

  • @zackpilz2536
    @zackpilz2536 6 місяців тому +9

    At 10.01, working out uncertainty with only value.. why do you not divide the 10mg by 2 or divide the 1mg by 2 like the rest of the calculations?

    • @Sssafdar7892
      @Sssafdar7892 6 місяців тому

      Omg i was thinking that too, you would right ?

    • @samkash7692
      @samkash7692 6 місяців тому +1

      Thats what I'm wondering

    • @christinaxcx
      @christinaxcx 6 місяців тому +1

      1mg by 2

    • @zackpilz2536
      @zackpilz2536 6 місяців тому

      @@christinaxcx what did you get for the paper 1 question on uncertainty yesterday?

  • @M0psyd
    @M0psyd 6 місяців тому +5

    you're actually such an icon

  • @ajlyne058
    @ajlyne058 6 місяців тому +2

    What happens when you need to convert an uncertainty from mm to micrometers? (this example is in question 2019 paper)

  • @Emma-lv2lt
    @Emma-lv2lt 6 місяців тому

    if measuring temperature change would that be two judgements as need to take measurement before and after?

    • @MissEstruchBiology
      @MissEstruchBiology  6 місяців тому +1

      one judgement but there is uncertainty on both measurements you take

  • @mayamxstdie4484
    @mayamxstdie4484 6 місяців тому +3

    I’m loving the eras tour T-shirt 😂❤

  • @0adam11
    @0adam11 6 місяців тому

    do you do predictions for the papers?

    • @Iloovesara
      @Iloovesara 6 місяців тому

      She didn’t make one I don’t think but I know someone who did do you want a link?

  • @shaheerchaudhry9459
    @shaheerchaudhry9459 6 місяців тому

    Are only practicals 1 to 6 on paper 1, or can the others come up?

  • @Ayzlxn
    @Ayzlxn 6 місяців тому +1

    Ty!

  • @sunnier849
    @sunnier849 6 місяців тому

    thank you!

  • @ochappy1695
    @ochappy1695 6 місяців тому +2

    This was useful 😂

    • @MissEstruchBiology
      @MissEstruchBiology  6 місяців тому +1

      did it come up??

    • @ochappy1695
      @ochappy1695 6 місяців тому

      @@MissEstruchBiologyyeah it did, this video saved me. Thank you 🙏 😆

  • @Equalhippo3156
    @Equalhippo3156 6 місяців тому +3

    Isn't uncertainty half the smallest possible unit you can measure. so you have to divide it by two?

    • @MissEstruchBiology
      @MissEstruchBiology  6 місяців тому +3

      when taking a reading, yes. But for a measurement it isn't

    • @Equalhippo3156
      @Equalhippo3156 6 місяців тому

      @@MissEstruchBiology ok got it, thanks a lot. 😊

    • @nurustar01
      @nurustar01 6 місяців тому +1

      in chemistry we learn it a different way and much easier way but essentially the same principle. so essentially if if you are taking one reading or as miss estruch said one judgement you do the smallest incriment divided by two= uncertainty for that equipment , if your taking 2 readings/2 judgements you do (the smallest incriment divided by 2) x2, which is just doubling the uncertainty

  • @theprovenpilot007
    @theprovenpilot007 6 місяців тому

    thanks

  • @ellad43
    @ellad43 6 місяців тому

    did everyone get +/- 1mm and 25% uncertainty?

  • @tevelthebestpersoninthewor2415
    @tevelthebestpersoninthewor2415 6 місяців тому

    Yesss swiftieee🫶 are you gonna go to the eras tour?