Solving IB Physics Problems Involving Ratios by Understanding Proportionality

Many IB Physics exam questions involve solving for ratios and/or proportions. These questions can be handled using the methods shown in this video. This is one of the most practical video lessons on this channel. The algorithm is explained and then numerous examples are given.

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00:00 Introduction
00:20 Data Booklet Formulas
01:53 Ratio Proportionality Equations
05:58 Ex Centripetal Acceleration
07:31 Ex 2 Luminosity Mass
08:48 Ex 3 Connected Flasks
11:11 Ex 4 Radius Mass number
13:04 Ex 5 density of stars
17:30 Summary Algorithm

[chimkin]

Thanks so much for this, one day before my exam and this is saving me, GOAT

[gamerrandom]

Mr. Doner, Just wanted to say thank you so much for your incredible videos! I learnt a lot from them and they for sure help me during the IB Physics Exams. P.S. While I am ending my membership, for those who are having Physics in N23 or later, BE A MEMBER. It was incredibly worth it.

[serax]

Thanks mate! Will use this tomorrow during Paper1 and Paper3!

[helsinkiaviation]

Big help for the upcoming finals! Thank you, Mr. Doner.

[javedfaizal]

brilliant video! thanks so much for this.

[DD]

18:56 Shouldn't it be n1/p1 / n2/p2 ?