Using Linear, Quadratic, Inverse, & Inverse Square Graphs to Understand Proportionality - IB Physics

0:00 Notation for Proportional Relationships
1:04 The 4 Relationships
2:02 Example Problem 1
3:34 Example Problem 2
4:23 Example Problem 3
5:17 Example Problem 4
5:42 Example Problem 5
6:22 Using Graphs to Identify Relationships

[mugeokur]

This is very useful. we all get students who come up with "if x increases, y increases" kind of predictions, which lack specificity. You have explained each case really well. Thank you

[bradenmarc]

In my experience, IB is VERY particular about the distinction between linear and proportional, proportional being limited to going through the origin. My students constantly mix them up, so I try to limit the use of the word "linear" to situations that require it - ones with non-zero intercepts. A common situation occurs for IAs where a student predicts a proportional relationship from theory, but gets a linear one. It's important that they realize the disagreement.

Thanks for the excellent videos.

[strvggle]

This video has solved my mind implosion i was having trying to understand my online class notes, cleared everything up very well for me thank you very much.

[RINGTONESREALM]

Thanks sir for resolving my doubts on graphs in physics.. 😅
Love from India...

[mananjain]

1:08 thank you sooo much!! This was exactly what I was looking for!

[iqrajabbar]

Great sir❤
I will watch your more videos for my lecturer test

[charlottetye-kr]

thank you!! finally understand inverse square relationships now 😁

[alkiviadiskaminaris]

you deserve more attention this is great!

[tanyakushwaha]

Very helpful...cleared my doubts very well :D
thanks a lot😄😄

[MUHAMMADFAROOQ-izot]

What will happen in the fourth case if we take X variable on y axis and y on x axis

[EchoingLife]

Mass should be along x-axis in a graph for a better picture

[mastfamastfa]

hello

i have a question :
let's say i have this Proportionality relation F~A
when i want to convert it to equation i should add constant K
so it will be F= K*A
but how i find k ?


example

The higher the car speed - the shorter the time to arrive
so :
V~1/t
V=k/t
now how i should find the constant K (or chose it)
is it the accelration or the mass of the car or the speed of

i searched online but nothing help's