yess

Thanks for your kind words! I'm glad you're finding the series helpful. :)

must write arus berkurang, untuk mengurangkan kehilangan tenaga elektrik dalam bentuk haba

@physicsbyjungakajunghaophy OK noted, thank you!

www.youtube.com/@wailoonchemistry

i was told that the relationship should only be directly proportional when there is a graph. otherwise, just write the higher the x, the higher the y.

what did u write for inference tho

@ something like buoyant force depends on the depth of immersion

WARGHHHHHH

nope, for buoyant force on the y-axis the buoyant force would increase if its sea water, so the gradient should increase !

Glad it was helpful! :)

Seawater is more dense than water so technically the volume displaced will be less

Hi just know that you mentioned, the density of liquid does affect the volume of liquid displaced. But in this experiment the density doesn't play much role when they're in water because the depth of the immersed rod is the same, Thus the volume of water displaced is the same.

And if you still doesn't get it, look at the length of the rope. It's is still the same length even you switch the liquid

For boat and this experiment is totally different case. For this experiment. We fix the volume / height of the rod submerged. So the volume of water displaced is fixed. Changing the density of liquid will only affect the Buoyant force (variable) FOR Boat situation, the Buoyant force is CONSTANT FIXED. Because the boat need it's Buoyant force to be equals to weight for it to float. So different density of liquid result in different volume of boat submerged.

不能，因为实验已经给你了要 rendam 的 kedalaman。在 air 或 air laut 都是用一样的kedalaman，所以 isi padu cecair tersesar 不会变

不能，因为Ketumpahan air / _Water density_ 只影响到 Daya apungan / _Bouyant force_

只影响浮力，不影响溢出来的水

Isipadu air tersesar still sama sbb density hanya mempengaruhi bouyant force

yup !

my school teacher says both is okay and depend on your graph: best fit line can start from origin & past through the points (directly proportional) but it can also dont start from origin and pass through the points (increase linearly) from the experiment that we did recently, my graph Fb against H is increase linearly

@yinghui5899 thank you🥺

if it doesnt pass through origin the relationship will change from directly propotional to increase linearly

@@unexpectedthings6633 ok thanks

that's fine! you can say "the responding variable is increasing/decreasing linearly with the manipulated variable" , as long as the best fit line is the best, it's not compulsory to start from origin

Glad you find it helpful. Good luck with your SPM!

ya i think i made a small error there glad that u noticed !

@@陈德明-e3f 感谢带来更详细的情报

volume of water displaced yes, but not water displacement.

I dont know, i just found this experiment similar to those apparatus.. so i m just choosing one of the experiment from the PAHANG paper

perpendicular

MV is always Depth of rod immersed, H RV can be Buoyant force, Fb or Volume of water displaced, V Bcs if your rod depth doesnt change, then we cant find Buoyant force or volume of water displaced

@@charmainechun9193 物理实验的数据不能构成直线是正常情况，应该要寻找平均来画下你的直线，多个点距离你的直线要很平均，基本上就没太大问题

没有直线通常是正常的，只是那个点真的必须标的很准因为改的时候考官是可以放大来看的，然后线是要拿平均的比如一个点上一个点下，平均就好。数据的话，最好是换成最小的数值比较好画graf。但是比如拿到的数据是0. 00256就需要在那个jadual画多一格写0. 003。

不然如果直接写0. 003考官不懂哪里算出来的，考官按计算机拿不到的话就错了，所以需要先写了计算机的答案再自己画多一格bundarkan

请问确定出这个吗？😊

@ZhiQingLim-p7s 不能说一定是这个，但是应该是锁着这个方向来出了，能多看一点类似视频的题目或者视频，因为题目是没有拿到，没办法确定。

tapi kenapa air laut kecerunan dia bertambah?

bukan berkurang?

​@ady9840 Jika lihat pada graf 10:31 itu, Fb itu maksud Daya apungan, h itu maksud kedalaman rod terendam, yang penting ialah air laut dapat ketumpahan yang lebih tinggi daripada air, ketumpahan hanya mempengaruhi Daya apungan, oleh sbb itu gradientnya meningkat. Maafkan saya sbb bhs Melayu tak ok😂 saya Cuba jelaskan Harap cikgu Jung boleh berikan jelas

Hi i think the density of sea water does not affect the volume of water displaced, it affect the buoyant force. When the question comes to the volume of water displace, the volume is actually affected by " the volume of rod " you immersed into the water, which is manipulated by yourself. Therefore, the density does not affect the volume of water displaced.

increasing density increases buoyant force,yes but the volume of liquid displaced is not determined by density but rather fixed by the volume of immersed object,increase in density only increases mass of the liquid which therefore increases the weight of liquid,thats how it increases buoyancy. It increases the weight of the volume of fluid displaced but does not have any change on its volume when subjected to the change of density and buoyant force.

My teacher say is the volume displaced decrease. Sea water denser than water

Hi to clear this up, it depends on the scenario.. In those boat / ship cases the buoyant force is CONSTANT because the buoyant force have to be the same as the weight of the ship for it to float... so when the density of the liquid changes, the volume of the water displaced will change. However in this experiment, if the position of the Rod is CONSTANT the volume of water displaced is CONSTANT, as the volume of rod submerged in the water is the same. Therefore, the density will not affect the volume, rather it will affect the buoyant force acting on the object.

There is no operational definition for physics my guy

​@crakoa1254 there are for some experiments.... For instance, ada this one inertia experiment, the operational definition : Inertia is indicated by period of oscillations. Also, there this one Charle's Law experiment : volume of air is indicated by length of air column. So, I also want to know if this ques also has operational definition or not...

Hii!! I got this from my physics teacher Operational definition :Bouyant force is represented by the difference between in volume of water displaced Hope this helps. Good luck!!

@@Somebodyydunnnooono, that is wrong

Hi to clear this up, it depends on the scenario.. In those boat / ship cases the buoyant force is CONSTANT because the buoyant force have to be the same as the weight of the ship for it to float... so when the density of the liquid changes, the volume of the water displaced will change. However in this experiment, if the position of the Rod is CONSTANT the volume of water displaced is CONSTANT, as the volume of rod submerged in the water is the same. Therefore, the density will not affect the volume, rather it will affect the buoyant force acting on the object.

我老师是说写when MV increase, RV increase/decrease，我觉得应该不要mv rv倒反吧

Mv then only Rv..

对的..

@@physicsbyjungakajunghaophy Thanks so much

Relationship can write as hypothesis?

when the question ask for relationship, how to know if i should write ‘x is directly proportional to y’ or ‘the higher the x, the higher the y’ ?

@@aysharidha7732 from what i know is directly proportional is only if refer to graph and the higher the higher is if dont have graph

@@haniiira2839 thanks for that 🙏🏻 i hope you’re sure abt it.😅

The responding variable is buoyant force acting on *cylinder rod or silicone rod 👀

Yeah should follow the Question Title since they ask relationship between Buoyant force and depth of Rod immersed. I SHOULD write Buoyant force first.

@@physicsbyjungakajunghaophy Thank you teacher