WAEC Physics Practical 2024 ( Question 1)

[@ceocreation]

You are really very sound and know how to transmit knowledge in more simplified My children are really enjoying your tutorials. Thanks a lot! You deserve commendation and recommendation.

[@JoynuelPhysics]

Thanks so much

[@imlg6560]

Thank you for these videos. As someone writing waec in SS2 i havent done any practical practice, but thanks to you I have a chance. Thank you.

[@JoynuelPhysics]

Great to hear!

[@omofovweakpadaka5860]

I noticed that the weight values in your table are currently listed in grams (g) instead of Newtons (N). The experiment asks students to determine the weight of the object in air, water, and another liquid. Weight is measured in Newtons, and is calculated by multiplying mass (in kg) by the acceleration due to gravity (g). While the spring balance displays grams on one side, it likely also has a Newton (N) scale on the other side. For this experiment, it's crucial to use the Newton scale to directly measure the weight of the object in each medium. Here's a quick breakdown: Spring Balance: Look for the Newton (N) scale on the balance. This is where you should take your readings for weight. Mass vs. Weight: The students will be given the mass of the object in grams (g). However, the experiment requires them to determine the weight (N), which is calculated from the mass using the formula: weight (N) = mass (kg) x gravity (g). Action: To ensure students receive full credit, please revise the weight values (W1, W2, and W3) in your table to reflect the readings taken from the Newton scale on the spring balance. This revision will make the experiment more accurate and align with the learning objectives. Additional Notes: You can mention the range of the Newton scale (e.g., 0.1 N to 0 N) if it helps clarify the instructions. Feel free to remove the example about the 10g scale on the other side - it's not directly relevant to using the Newton scale. By following these steps, you can ensure your students have a clear understanding of how to measure weight using the spring balance and receive proper credit for their work.

[@omofovweakpadaka5860]

@@JoynuelPhysics WAEC practical is not all about the slope only, is everything. Let me clarify that impression with this: what you get from the slop is the degree of accuracy which is just about 1 mark. For instance, if your slope is + or - 10% of the density of kerosine(0.82 g/cm³); then you get 1 mark for accuracy, that's all from the slope. Of course, you get 2 marks for the slope itself. Your tabl, which carries the most marks, is wrong. the table of values can have up to between 8-10 marks. in your demonstrations, your table of values will attract only 2 marks Here is why: the first column is correct. you can get 1 mark for that plus 1 for the composite table. let's move to the second column W1 should be in Newton but you have it in grams so you get a -1/2 mark same for the other columns that are in grams instead of N(so you will have lost a total of 2.5 marks) You are claiming that since g is constant the difference is small but say a BIG NO. let's take the first one 5g is equal to 0.005kg. When you multiply this by 10 it becomes 0.05N so your first value should be 0.04N, not 4g. Just read the Newton Scale you will see your error or mistake

[@omofovweakpadaka5860]

@@JoynuelPhysics Can't you see 0.1 on the Newton Scale and 10 on the grams scale

[@harrisobuvie6955]

@@omofovweakpadaka5860 , that is the conversion from gram to Newton.

[@OkonkwoNnaemeka-ke3nx]

​@@omofovweakpadaka5860 you are good.... Our teacher take that corrections

[@ugwuaugustine4208]

Your correct She'll take the corrections.

[@mamudouconateh8308]

I get impressed when I see women teaching physics which is regarded as one of the hardest science subjects. Love you Ma❤❤❤❤

[@JoynuelPhysics]

Thanks so much ❤️, l'm encouraged. Have a blessed day.

[@mamudouconateh8308]

@@JoynuelPhysics Keep it uppppp. We need more Physicists (Females)🤗🤗

[@PhysicsWithBen]

Same here Sir, let's help her promote her channel. She is doing well as far as physics is concerned.

[@taiwoemmanuel2824]

Am also a physics teacher. I love your methodology and approach to teaching, especially for the fact that you're a female. Nice job. Great physicist

[@amofienebeka4483]

Hmm

[@mercyoluwaseunojotola2130]

Wow Thank you so much Ma 🥰 God bless you greatly 🙏🤲

[@JoynuelPhysics]

Amen Bless you too

[@tadeomosehin7908]

Thanks so much joynuel Digitech Academy....this was really helpful.

[@JoynuelPhysics]

Glad it was helpful!

[@AzibanagirMitiomemotu]

Ma am impressed in your teaching, thanks ❤❤

[@JoynuelPhysics]

Thanks so much

[@Killasenpai98]

Ma I am very grateful for you explaining this Thank you ma

[@JoynuelPhysics]

U re welcome

[@Lillyyylola]

Maam, thank you very much❤❤❤

[@JoynuelPhysics]

U re welcome ❤️

[@PinkyPen]

Am a student, i really loves your teaching method and takes you as an inspirator and model thanks ma

[@JoynuelPhysics]

Thanks so much ❤️

[@adesewagasper9218]

Thanks a lot ma this video is really helpful. May God grant grace to do many more.

[@JoynuelPhysics]

Amen , thanks so much

[@prosperjonah342]

Wow thank you very much ma, I like the teaching

[@JoynuelPhysics]

You are most welcome

[@madesolaokechukwu]

May God increase ur knowledge

[@JoynuelPhysics]

Amen, thanks so much

[@abiodungabrieldapo1902]

Well explained and a very coherent teaching. Thank you

[@JoynuelPhysics]

U re welcome, thanks for watching

[@madesolaokechukwu]

Thanks so much for the knowledge ❤🙏🙏

[@OluwadabiraKekai]

Thanks ma God bless you I do really enjoyed ur teaching ma ♥

[@JoynuelPhysics]

Thanks so much. Bless you too

[@abisoyeinnocentatteh3954]

She is very good I have encountered her severally. Thank you very ma

[@JoynuelPhysics]

Thanks so much Sir

[@OlajumokeJaji]

Thank u ma for this lesson it was really helpful

[@JoynuelPhysics]

Glad to hear that

[@MuritalaRasheedat]

Thanks so much ma I really love your teaching skills For the fact that you are a woman

[@JoynuelPhysics]

Thanks so much dear

[@OromidayoAkintan-mx2hp]

Nice teaching ma I'm impressed

[@JoynuelPhysics]

Thank you very much

[@Sir_Lynzz]

🎉🎉 Well-done, Ma'am! You're doing excellently well.

[@JoynuelPhysics]

Thanks so much

[@darlingtonagbai7999]

I really appreciate your effort. The accuracy of your spring balance is 1g (the least value you can get when the reading is in between 2 lines) 0.25 and 0.75 are estimations not made accurately by the spring balance.

[@JoynuelPhysics]

Thanks so much, I'm encouraged.

[@PhysicsWithBen]

All your video lessons on point. Well done and More grace.

[@JoynuelPhysics]

Thanks so much Sir, will like to speak with you. I follow your channel too. We can collaborate as Physics teachers ❤️

[@adediranprecious1424]

Very Educative❤.

[@JoynuelPhysics]

Thanks so much

[@goodnedstemi6394]

Beautiful ❤️ thx a bunch

[@JoynuelPhysics]

You’re welcome 😊

[@RodiahMuhammadllawwal]

Thank you ma I really understand it now

[@JoynuelPhysics]

U re welcome

[@kolawolesegun6845]

Thumb up ma! God bless you.

[@JoynuelPhysics]

Thank you so much

[@prosperjonah342]

Hello ma, pls how did you read the value of W3 in the spring balance

[@JoynuelPhysics]

W3 is weight in air minus weight in liquid L

[@PhysicsWithBen]

I just shared your videos on my Facebook account to wider audience.

[@JoynuelPhysics]

Thanks so much Sir, God bless you. Waiting for your mail.

[@biyamasam]

God bless you ma for always helping out

[@JoynuelPhysics]

Bless you too

[@ekedechizoba]

Well done ma .I really enjoyed it ❤😊😊😮❤❤

[@JoynuelPhysics]

Glad you enjoyed it

[@diamondadekoya2975]

Thank you ma, but what if we use 50g, 100g,150g,... will the slope be the same thing as the 0.7 you got and will it be against waec marking scheme for the slope if it is above 0.8 ma because i have seen other past questions e.g waec 2012 that they use higher grams and the slope of it is like 0.9, 1.2... so will it be against waec marking scheme or it will be ok if the slope is like that ma.

[@JoynuelPhysics]

U re welcome. It will still be correct. It must not be 0.8. There's room for 0.8 plus or minus 0.2.

[@iduhycinthkevin2995]

Please look at your graph again because the students will not get any mark in the line of best fit and the students should use their rules to join three plotted points in the straight line. Thanks for your teaching and demonstration.

[@JoynuelPhysics]

U re welcome

[@AjahNgozika]

Ok

[@agenemichleo8989]

Good observation. However, ur tutorial is wonderful.

[@emmanuelonah4596]

The line of best fit must not necessarily cut through 3 scatter points. The ideal line of best fit goes roughly through the middle of all the scatter points on a graph. The points on either side of the line should be balanced and equidistant from it. These are what make the line of best fit and not merely passing through 3 points.

[@Udefuna]

​@@emmanuelonah4596you are correct. Most physics teachers and examiners don't know this

[@adeolusolomon1723]

😊

[@greentamunodienye3615]

Wondeful❤😮

[@JoynuelPhysics]

Thanks so much

[@basirathabeeb339]

I'm proud of you dear!!! Well-done ma'am.

[@JoynuelPhysics]

Thanks so much dear

[@diamondadekoya2975]

Is it compulsory to put the mass hanger there or you can use a thread and tie it to the masses because in my school they ue thread so is it necessary and will you still obtain the same values when you use the both of them ma

[@JoynuelPhysics]

U can use the thread. Just ensure the masses are completely immersed. Your values will still be correct

[@funmiAdekoya-dv92h]

​@@JoynuelPhysicsthank you ma, but what we use 50g, 100g, 150g... will the slope be the same thing as the 0.7 you got and will it be against waec marking scheme for the slope if it is above 0.8 ma because I have seen other past questions e.g waec 2012 that they use higher grams and the slope of it is like 0.9, 1.2... so will it be against waec marking scheme or it will be ok if the slope is like that ma

[@idowuogunrinde7361]

Nice job

[@JoynuelPhysics]

Thanks so much

[@AbubakarKamfut-t6v]

Mrs joy well done its me ur best student

[@JoynuelPhysics]

Head boy, how are you doing?

[@Detective-I]

Pride Why can't you just mention your name to her ?

[@Emygod-st1ku]

Thank you ma 02:51

[@MutmainnahOlajumoke]

Nice job ma.bravo.👍👏👎👋

[@JoynuelPhysics]

Thanks so much

[@rhemaportal]

Welldone ma, worth watching

[@JoynuelPhysics]

Thanks so much

[@ajayiolufemi.8522]

I have help you to share, you've done more to impress the masses.

[@JoynuelPhysics]

Thanks so much

[@princegodwin2110]

But I thought the W1 W2 W3 are to be in Newton??

[@JoynuelPhysics]

Yes, please put yours in Newton. I made a mistake

[@AdabaVeronica]

I think it's better to finish all the weight in water before doing the weight in kerosene to avoid contamination cleaning may waste time.

[@JoynuelPhysics]

Yes, l did that when l was practicing alone. But for tutorial sake, l did everything formally. Thanks for your contribution ❤️

[@RadDude]

Thank you ma

[@JoynuelPhysics]

You’re welcome 😊

[@IfeoluwaOlabisi-kq9wy]

Thank you very much ma. Please is the volume of water and liquid L the same?

[@JoynuelPhysics]

U re welcome. No, the volume is not necessary. Just fill your beaker so the mass can enter completely.

[@madesolaokechukwu]

Same to me too

[@JosephBoamah-y6d]

Good bless you maa but I think the question should added

[@JoynuelPhysics]

Bless you too

[@adeniyiadedamola743]

Is this the physics practical The one we will do in exam

[@JoynuelPhysics]

This is a video guide from WAEC past questions

[@Callmedrema]

Thank you ma'am

[@JoynuelPhysics]

Most welcome 😊

[@OkonkwoNnaemeka-ke3nx]

The spring balance with accuracy of 2g is too big a margin to get excellent result..... Relying on digital digital spring balance with 0.01g accuracy will give you excellent table and best slope value..... Equally ensure ur table is in Newton instead of grams

[@JoynuelPhysics]

Yes yes yes, thanks

[@AjahNgozika]

Ok

[@OmohJahlove]

Nice job ma God will bless u

[@JoynuelPhysics]

Amen, bless you too dear, thanks

[@ChristianNwankwo-by1ee]

A nice video, easy and simplified, but instead of taking the masses one by one in the different mediums why not measure all the masses in a medium before doing so in another. The unit of weight is Newton or kgm/s but you left it's unit in grams which is unit of mass

[@JoynuelPhysics]

Thanks so much. Very good observation. Thanks for your contribution

[@ezekielgnwibo3022]

Convert to Newton (N), not in gram.

[@JoynuelPhysics]

Yes,yes, yes, thanks

[@findyourmotivation802]

What if 100g, 200g masses are utilised, this spring balance will not be able to measure again

[@JoynuelPhysics]

Yes, l have more than one, l displaced them in the video. We have to prepare for both smaller and bigger masses since it wasn't specified in the requirement .

[@AjahNgozika]

So interesting

[@JoynuelPhysics]

Thanks so much

[@LemuelAkamu-km4ix]

Thanks so much ma

[@JoynuelPhysics]

Uwc

[@DemolaAyoola]

Well done ma. ✌️👍

[@JoynuelPhysics]

Thanks so much

[@prayerwatchforNigeria]

Best ❤

[@JoynuelPhysics]

Thanks dear ❤️

[@Makingmatheasy1]

Ma what if you get 0.75 as slope will they mark it and is it a must that your graph pass the origin ma

[@JoynuelPhysics]

0.75 is very good. U did well 👍. For this particular experiment, let the graph pass through the origin

[@Makingmatheasy1]

@@JoynuelPhysics thanks so much ma

[@PeterchazzGodday]

Is it possible to convert grams to kilograms before recording the table.

[@JoynuelPhysics]

For the masses, leave it in grames but the weight should be in Newton.

[@PeterchazzGodday]

Ok ma thanks

[@ebirerichristy8004]

Good job ma, buh i thought we were to calculate just for u and v?

[@JoynuelPhysics]

Thank you, calculate and plot graph

[@VictoryOluebube-hd5vl]

Thank ma

[@JoynuelPhysics]

U re welcome

[@kristieademola5700]

Ma is the relative density going to be given by the teacher

[@JoynuelPhysics]

No, it will be obtained from the slope of your graph

[@Gamerboi0407]

Well done ma

[@JoynuelPhysics]

Thanks so much

[@IjemenWehere]

I thiught the unit if weight is "Newton"(N) not grams .

[@JoynuelPhysics]

Yes, the correct unit is Newton. I made a mistake

[@bazeArttutorials]

Please what is i dont have a spring balance in which i can take reading,

[@JoynuelPhysics]

U will really need a spring balance for the experiment

[@greentamunodienye3615]

Is these 2024 physics practical

[@madesolaokechukwu]

Ma is the grams we will use in waec

[@JoynuelPhysics]

No, use Newton. It was a mistake. Mass in grams, weight in Newton.

[@madesolaokechukwu]

Pls ma can you make the camera bright it is blur and not clear

[@madesolaokechukwu]

​@@JoynuelPhysicsok ma thank you ma

[@titansjones6166]

damn why didnt i find you sooner

[@UzomaEnioko]

The lady is really trying

[@JoynuelPhysics]

Thanks so much

[@timilehinoyewole]

I swr 👍👍

[@OyindamolaIshola]

I swr👍👍

[@oladejoabbey2791]

🙏🥺🥺🖤🖤

[@olaitangabriel7902]

But the unit for weight is N but on your table you are using g as the unit

[@JoynuelPhysics]

Please use Newtown, it was an error. Thanks for the observation.

[@OlajumokeJaji]

Ma i thought the S.I for weight is Newton

[@JoynuelPhysics]

Yes, it was a mistake please

[@Makingmatheasy1]

Ma what if you get 0.933

[@JoynuelPhysics]

Very good, is correct

[@muboabikoye1997]

I thought the si unit of weight is Newton Ma

[@JoynuelPhysics]

Yes, that was a mistake.

[@ProteinOfficial]

Please are you in Ghana or Nigeria

[@JoynuelPhysics]

Nigeria

[@Nicx-c6g]

Ma is this the actual question for this year's practical

[@JoynuelPhysics]

No, but likely question from WAEC past question.

[@engr.gideonamah319]

The weight have to converted to Newton

[@JoynuelPhysics]

Yes, thanks so much

[@EduKhalid-sv4xw]

Thank you so much for the knowledge 🙂😁

[@JoynuelPhysics]

U re welcome

[@MaryOluwakemisola-rg5ud]

Thank you ma

[@JoynuelPhysics]

You’re welcome

[@OmidijiTitilayo]

Well done ma

[@JoynuelPhysics]

Thanks so much

[@PeaceSamuel-l1n]

Thank you so much ma

[@JoynuelPhysics]

You are most welcome

[@AjibadeAdewale-mg5hj]

Thank you ma

[@JoynuelPhysics]

U re welcome