Simple Harmonic Motion (SHM) and Angular Frequency [IB Physics HL] 

Thank you so much - you made my day! Cheers, Mitch

You're going to love this - I'm uploading ALL of the Physics HL videos this week. You'll see the playlists for the HL be added in the Physics section on the page

@@OSC1990 Yay! Thank you so much

They've all been added. Physics HL playlists all updated. You might be happy to know that I even included two of the options (Relativity and Astrophysics). If you have exams this summer, that won't matter but in case you have exams in November or else in May 2022 then those will help you perhaps as well. :)

@@OSC1990 have may 2022 exams, physics in 3 days, havent started any hl topics, wish me luck

@@wrentay2306 less go

Have I got good news for you! In OSC Study, we're about to launch (in Feb 2022) full IB exam solutions, including a video explanation. So there we explain how to solve every part of every question.

very common

Good question - using the equation a = -w^2 x, you can look at it like a linear equation of the form y = mx + c Remember in general that m is the gradient, and c is the y-intercept. In this case, c = 0 since the y-intercept is zero. Now for the gradient, we have to look at the equation for a. I just wrote at the start that a = -(w^2) x Well, that means that is we see it as a linear graph and map out what the y, x, m, and c do, we have: y = a x = x (that was easy), and m = (w^2). Since m = gradient, therefore w^2 = gradient. Finally, w = sqrt(gradient)

@@OSC1990 Okay, thank you.

Yes, when you put a value in that's based on a graph, there will be a range of values that are accepted by the examiner. So just trust yourself when you do your exam, and do the best you can - show your work and you're often getting more marks than you think! :)

Glad you like them! Cheers, Mitch

Hah, it depends. There is some SHM in the SL topic 4 (Waves). There's also in the HL where it goes more into detail with the equations. In SL you shouldn't need to use the equations in this video.

@@OSC1990 maybe the teacher confused us with the HL group or something like that😄

Nope, it's still me making the videos - I've just joined with OSC. Don't worry. I'm still here! :) -Mitch

@@OSC1990 I know I know, im kidding Keep up the good work :)