How to choose a scale on a graph | A-Level Physics How To

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  • Опубликовано: 9 сен 2024
  • Got some data to plot on a graph and need to plot it onto a graph grid? What scale are you going to choose for your axes? In this video I demonstrate a method for choosing a scale so that the plotted points will consistenly cover more than half of the graph grid.
    Plotting points to cover more than half of the graph grid is an important part of doing accurate graph work (i.e. calculating gradients and intercepts). I hope you find the method easy to use and helpful in all your graph work.
    Want to check you've grasped the method? Use this free quiz: physicshq.wixs...
    Graph grid I use is available for download: www.tes.com/te...
    In this video I show you the method applied. In the next video ( • How to choose a scale ... ) I apply the method to some messier data.
    Relevant concepts: physics graphs, accurate graph work, picking a scale for axes, systematic values for graphs, maths skills in physics, maths for physics, maths hacks in physics.

Комментарии • 127

  • @PhysicsHQ
    @PhysicsHQ  3 года назад +9

    Want to check you've grasped the method? Use this free quiz: physicshq.wixsite.com/alevelphysicshq/choose-graph-axis-scale-quiz

    • @yesumbereyabyose1987
      @yesumbereyabyose1987 Год назад

      thanks for the help this thing i had failed to understand graphing and calculating scales well

  • @silent.T
    @silent.T Год назад +44

    This video is a life saver. I usually spend about 10 minutes trying to figure out the scale to use on my graph and i want to cry each time especially when my data is all in decimals.Thank you so much ☺️

    • @PhysicsHQ
      @PhysicsHQ  Год назад +2

      You’re very welcome. All the best with your studies.

    • @k_deep9583
      @k_deep9583 9 месяцев назад

      How 14 is divided and 10 divided?? Which rule is used?

    • @PhysicsHQ
      @PhysicsHQ  9 месяцев назад +1

      @k_deep9583 hi. You have to count the number of large grid squares along each axis (vertical and horizontal) and then you divide the corresponding range by that number of squares.

    • @Hottiiiiie
      @Hottiiiiie Месяц назад

      And I went through that today 😢

  • @Ashiq.Ibrahim
    @Ashiq.Ibrahim 3 года назад +50

    THANK YOU SO MUCH. I ALWAYS STRUGGLED WITH PICKING SUITABLE SCALES. THIS HELPED SO MUCH. THANK YOU.

    • @PhysicsHQ
      @PhysicsHQ  3 года назад +4

      Amazing! I’m so happy that it helps. All the best with your studies.

    • @yusufmohamud6618
      @yusufmohamud6618 2 года назад

      Bro learn who to use lowercase

    • @josephappiah2604
      @josephappiah2604 Год назад

      Will you be interested if I introduce to you a formula that can help you choose a scale for a graph?.

    • @davidela
      @davidela Год назад

      ​@@josephappiah2604yes

    • @Behemoth50
      @Behemoth50 Год назад

      @@josephappiah2604 yes please!

  • @BeeS392
    @BeeS392 2 года назад +18

    Thank you so much! I struggled a lot when graphing manually especially selecting the right scales. This helped a bunch.

    • @PhysicsHQ
      @PhysicsHQ  2 года назад +1

      You're very welcome! Happy graphing from this day forward!

  • @CHINAZAJOSEPH-yb3fs
    @CHINAZAJOSEPH-yb3fs 11 месяцев назад +8

    Compare to other teachers on this subject, you are one of the best.
    Nice job.

    • @PhysicsHQ
      @PhysicsHQ  11 месяцев назад +1

      Thanks so much! All the best with your studies.

  • @uhok4898
    @uhok4898 Год назад +4

    THANK YOU SO MUCH!! I’ve been struggling with this for so long, and this helps with literally any data, bless you. Im so grateful for you, thank you so much 😭 ♥️

    • @PhysicsHQ
      @PhysicsHQ  Год назад +1

      Amazing 🤩. So glad it helped. All the best with your studies.

  • @Xe142n
    @Xe142n 10 месяцев назад +3

    Bravo ! You taught me more than my teacher did.

    • @PhysicsHQ
      @PhysicsHQ  10 месяцев назад

      Boom! 💥
      Well done for putting the effort in to learn something new. All the best with your studies.

  • @particleonazock2246
    @particleonazock2246 3 года назад +7

    This is a godsend, I could not find any useful videos on graphing, and then, came to your video, which helped immensely. Thank you very much!

    • @PhysicsHQ
      @PhysicsHQ  3 года назад +2

      You’re welcome. I’m so glad it helped.

    • @josephappiah2604
      @josephappiah2604 Год назад +2

      Will you be interested if I introduce to you a formula that can help you choose a scale for a graph ? .

    • @chetu8284-om3xu
      @chetu8284-om3xu Год назад

      @@josephappiah2604 please

    • @josephappiah2604
      @josephappiah2604 Год назад

      @@chetu8284-om3xu what exactly Do you mesan by please

  • @BarniDeDino
    @BarniDeDino Год назад +4

    clear cut explanation and really helpful at that, thanks a lot

    • @PhysicsHQ
      @PhysicsHQ  Год назад

      Thanks 🙏
      All the best with your studies!

  • @sampsonagudze8674
    @sampsonagudze8674 2 года назад +5

    You are an incredibly fantastic teacher! Great teaching approach.

    • @PhysicsHQ
      @PhysicsHQ  2 года назад

      Ah that’s brilliant. Thank you very much.
      🤩
      All the best with your studies.

    • @josephappiah2604
      @josephappiah2604 Год назад

      Will you be interested if I introduce you to a formula that can help you choose a scale for a graph?.

  • @diyan1338
    @diyan1338 3 года назад +8

    Doing my IGCSE's currently...Thanks a lot for this video, It really helped!

  • @Qploi
    @Qploi 2 года назад +4

    Seriously, thank you so much. Your explanation regarding such topic was superb and helped me out to eliminate one of the major problems I always had to deal with, Truly appreciate it 🙌🏿🙌🏻👍🏿👍🏻

    • @PhysicsHQ
      @PhysicsHQ  2 года назад

      🙌
      Amazing. Thanks for taking the time to feedback.
      All the best with your studies.

    • @josephappiah2604
      @josephappiah2604 Год назад

      Will you be interested if I introduce to you a formula that can help you choose a scale for a graph?.

  • @DamilolaFavour-hx7qm
    @DamilolaFavour-hx7qm 4 месяца назад +2

    Am so grateful for this video, am watching this right now 8:49 am in Nigeria.

    • @PhysicsHQ
      @PhysicsHQ  Месяц назад

      You’re welcome. All the best.

  • @fizixguru101
    @fizixguru101 3 года назад +5

    The grid on the shirt was not a coincidence ...was it?

    • @PhysicsHQ
      @PhysicsHQ  3 года назад +6

      Of course not. That’s my graph day shirt 👔

  • @Hattan3477
    @Hattan3477 4 года назад +4

    Excellent explanation 👍🏻

    • @PhysicsHQ
      @PhysicsHQ  3 года назад

      Glad it was helpful!

  • @wisamorabi1070
    @wisamorabi1070 4 года назад +4

    Fantastic video, thanks a lot!

  • @shaheerahmad2834
    @shaheerahmad2834 9 месяцев назад +2

    Why we multiply by 2 , this confused me

  • @justsomeone2001
    @justsomeone2001 6 месяцев назад +1

    Thank youuuuu so much ❤❤

  • @baffourisaac
    @baffourisaac Год назад +1

    Thank you so much and it has help me alot

  • @tbnrcoding4404
    @tbnrcoding4404 2 года назад +2

    This is going to use this to study for a test that is tomorrow!

    • @PhysicsHQ
      @PhysicsHQ  2 года назад +2

      All the best for the test!! 📝

  • @nigelhooson4226
    @nigelhooson4226 3 года назад +3

    Thank you, a real help

    • @PhysicsHQ
      @PhysicsHQ  3 года назад

      Great! All the best with your studies.

  • @zeevlogs4250
    @zeevlogs4250 3 года назад +2

    Thanks a Lot

  • @redmercurygaming7911
    @redmercurygaming7911 2 года назад +1

    This actually just changed my LIFE
    thanks so much .😊😋

    • @PhysicsHQ
      @PhysicsHQ  2 года назад +1

      You’re very welcome ☺️
      All the best with your studies - and exams!

  • @user-bo3te8qm1g
    @user-bo3te8qm1g 9 месяцев назад +1

    Thanks
    love from INDIA ❤❤

    • @PhysicsHQ
      @PhysicsHQ  7 месяцев назад +1

      You’re welcome ☺️
      All the best

  • @gurleenkang6337
    @gurleenkang6337 3 года назад +3

    Really helpful 😃

    • @PhysicsHQ
      @PhysicsHQ  3 года назад +1

      Thank you. Glad to hear it is helpful for you.

  • @baffourisaac
    @baffourisaac Год назад +1

    Thank you for r consultation

  • @maccarthyquest5219
    @maccarthyquest5219 2 месяца назад +1

    Nice 😊
    Just Couldn't leave without a like and a sub

    • @PhysicsHQ
      @PhysicsHQ  Месяц назад

      Thanks 🙏
      All the best!!
      🤩

  • @PIKA-GAMER_FF
    @PIKA-GAMER_FF 2 года назад +1

    Thanks from India ❤️

    • @PhysicsHQ
      @PhysicsHQ  2 года назад

      🇮🇳 🤩
      You’re very welcome!
      All the best.

  • @periclesngon6854
    @periclesngon6854 2 года назад +2

    you are the best, may the lord bless for this video

  • @a.s862
    @a.s862 23 дня назад

    thank you for the video!!! can I ask why do you use 2.5 for the y increments though? I thought the increments have to be 1 or 2 or 5 X10 to the power of n?

  • @edrinaakoto-mensah5225
    @edrinaakoto-mensah5225 Год назад +1

    You video has really helped thanks

    • @PhysicsHQ
      @PhysicsHQ  Год назад

      Brilliant! All the best with your studies.

  • @user-qz7jx8of8z
    @user-qz7jx8of8z Год назад +1

    This is great 👍

    • @PhysicsHQ
      @PhysicsHQ  Год назад

      Thanks so much! All the best.

  • @PrinceAndem
    @PrinceAndem 4 месяца назад +1

    Interesting 😅😅

  • @billafavourfavour9865
    @billafavourfavour9865 3 года назад +4

    Hello good evening. Please i wish to know how to determine the scale of graphs because I face alot of difficulties with that. Thanks

    • @PhysicsHQ
      @PhysicsHQ  3 года назад +3

      Hi. Sure. If you need further clarification from any point in the video you can ask here.

    • @billafavourfavour9865
      @billafavourfavour9865 3 года назад +1

      @@PhysicsHQ ok thanks

  • @crazymee8763
    @crazymee8763 4 месяца назад +1

    Thanks❤

  • @gillianmanyeh4893
    @gillianmanyeh4893 9 месяцев назад +1

    Thanks sir 😮

    • @PhysicsHQ
      @PhysicsHQ  9 месяцев назад

      You’re most welcome. 🙏

  • @raphaelilerioluwa
    @raphaelilerioluwa Год назад

    Please can you make a video on how to find the error in a reading

  • @Multisthetics
    @Multisthetics 6 месяцев назад

    why does this not work for me

  • @pverunique3635
    @pverunique3635 Год назад +1

    Hello. Please if using same example with x-axis = 4.59 as highest and -3.91 as lowest and y-xis= -4.60 as highest and -0.35 as lowest, what do we do??

  • @edoupdates9935
    @edoupdates9935 3 года назад +1

    Nix one👍

  • @nanakokoberiko9179
    @nanakokoberiko9179 2 года назад +1

    sir, am not geting you clear, where did you get the denominator
    14, why did you multiply by 2 .

    • @PhysicsHQ
      @PhysicsHQ  2 года назад +1

      Hi.
      The 14 comes from the number of large squares across the horizontal direction of the grid.
      In my method I worked out a range for my acceptable scale: a minimum value which corresponds with using half the grid (7 large squares) and a maximum value which corresponds with using the entire grid (14 large squares).
      Does that make more sense?

  • @user-hn1dy2wo2g
    @user-hn1dy2wo2g Месяц назад

    Does not apply on a grapho n which there are 10 large boxes on horizontal axis.

    • @PhysicsHQ
      @PhysicsHQ  Месяц назад

      Method applies to any size grid.

  • @dukoronyinye8923
    @dukoronyinye8923 Год назад

    I have eye problem I can't see is written on the board

  • @thakanyanesechache4828
    @thakanyanesechache4828 2 года назад +1

    Hi. In choosing the scale of the y axis, why did you choose to use 2.5 specifically?

    • @PhysicsHQ
      @PhysicsHQ  2 года назад +3

      Hi
      The scale has to be between 2.1-4.2 to use ~ half of the grid. The closer to 2.1 the better. 2.5 is neatly divisible from 10 (10/4 =2.5) so plotting will be easy.

    • @thakanyanesechache4828
      @thakanyanesechache4828 2 года назад +1

      @@PhysicsHQ Thank you

  • @lifeofkolele1223
    @lifeofkolele1223 Год назад +1

    what does neatly divisible by 10 mean

    • @PhysicsHQ
      @PhysicsHQ  Год назад +1

      I mean by that not an awkward scale.
      For instance if we make 1 large square equal to 3 then a value of 1 will be at 3.3̇ on our scale. We typically consider that awkward.
      So avoid 1 large square to 3, 6, 7 and 9. Best to use 1, 2, 5 etc. 4 and 8 not ideal but ok.

  • @mmelisishi5240
    @mmelisishi5240 2 года назад

    What makes you decide to use 0.50 ?

    • @PhysicsHQ
      @PhysicsHQ  Год назад

      It is a round number within my range. Round means neatly divisible by 2 , 5, 10.

  • @trikicy6120
    @trikicy6120 2 года назад +1

    where did the 14 come from in the first example...

    • @trikicy6120
      @trikicy6120 2 года назад +2

      ohh nvm its ayt thnxs this was very helpfull

    • @tbnrcoding4404
      @tbnrcoding4404 2 года назад +1

      It's the amount of squares

    • @PhysicsHQ
      @PhysicsHQ  2 года назад +1

      The grid is 14 × 10 large squares.

  • @kevinkai2190
    @kevinkai2190 2 года назад +1

    Cool

  • @ChristianaTyavger-uh8tb
    @ChristianaTyavger-uh8tb Месяц назад

    What do you mean by squares

    • @PhysicsHQ
      @PhysicsHQ  Месяц назад

      A standard graph grid is made up of small (2 mm) grid squares. And those small squares are grouped in 10 × 10 large squares (surrounded by thicker grid lines). The large squares are what I was referring to.

  • @ParLay--
    @ParLay-- 2 года назад

    Hi if using your same example of 14 by 10 what if for y axis the data starts at 3.9 and the biggest is 19.5 and for the x axis data it starts at 0 and the biggest is 9.7 how would you scale the graph by?

    • @PhysicsHQ
      @PhysicsHQ  2 года назад +4

      y axis: starts at 3.9 and the biggest is 19.5
      (19.5 - 3.9) ÷ 10 = 1.56 (min scale)
      1.56 × 2 = 3.12 (max scale)
      Round number between min and max ➝ 2.0
      x axis: starts at 0 and the biggest is 9.7
      9.7 ÷ 14 = 0.69
      0.69 × 2 = 1.38
      Round number between min and max ➝ 1.0

    • @josephappiah2604
      @josephappiah2604 Год назад

      Would you like to use formulas in choosing scales of decimal values

  • @bindumangat333
    @bindumangat333 Год назад

    Sir pls tell big square you have taken means 20 divisions?

    • @PhysicsHQ
      @PhysicsHQ  Год назад

      The large square has 10 divisions.

  • @Bella20816
    @Bella20816 11 месяцев назад

    How did you get the 2.9/14 ??

    • @PhysicsHQ
      @PhysicsHQ  11 месяцев назад

      2.9 is the difference between max and min data values. 14 is the number of grid squares.

  • @DannySimukoko
    @DannySimukoko Месяц назад

    Why are we using 14

    • @PhysicsHQ
      @PhysicsHQ  Месяц назад

      The grid has 14 large squares along an axis.

  • @user-xs7fu4lg6h
    @user-xs7fu4lg6h 6 месяцев назад

    Where does 14 came from

    • @Multisthetics
      @Multisthetics 6 месяцев назад +1

      14 large squares on the grid horizontally

    • @ridhima1933
      @ridhima1933 5 месяцев назад +2

      Thanks ​@@Multisthetics

    • @Multisthetics
      @Multisthetics 5 месяцев назад +1

      @ridhima1933 no problem

  • @baebie1924
    @baebie1924 2 года назад

    I don't have understand 😭😪😪

  • @oneworld8918
    @oneworld8918 7 месяцев назад +1

    what is the meaning of 0.50 this confuced me🥲