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21 May 2013 05:14
in discussion Hidden / Per page discussions » Notes

Some the stuff is pretty close to textbooks but in general the site is my thoughts. The outline above is straight from an old IB syllabus.

-HS

by , 21 May 2013 05:14
Steven (guest) 20 May 2013 22:27
in discussion Hidden / Per page discussions » Notes

Thank you, So very much.
This Whole site helped me with Studying Electrical circuts just in time for my Topic 5 test.

Quick Question:
Is this directly from the IB SL Physics Text book?

by Steven (guest), 20 May 2013 22:27
09 May 2013 05:35
in discussion Hidden / Per page discussions » Lab Ideas

If that doesn't do it can you give me a bit more background? What topics have you discussed? What equipment looks interesting?

Also there are many labs discussed in comments here. One or two of them should work for you.

-HS

by , 09 May 2013 05:35
Maddie (guest) 09 May 2013 00:46
in discussion Hidden / Per page discussions » Lab Ideas

Hey, im in PRe IB science and we were asked to design a lab wide open to any physics cncept, we have lots of fun tools but im not really interested in the physics part of this course so i am at a total loss for an idea. Any help would be great! Thanks in advanced

by Maddie (guest), 09 May 2013 00:46
08 May 2013 12:14
in discussion Hidden / Per page discussions » Special Relativity

I don't see any in Chrome. Browser issue?

by , 08 May 2013 12:14
John Doe (guest) 07 May 2013 15:09
in discussion Hidden / Per page discussions » Special Relativity

Is there any way you can fix all the 'math processing errors'?

by John Doe (guest), 07 May 2013 15:09
30 Apr 2013 13:25
in discussion Hidden / Per page discussions » Lab Ideas

You should be able to calculate the velocity (speed really) using the equation $a_{centrip} = \frac{v^2}{r}$. So you will need to know or approximate the radius.

If you simply measure the vertical acceleration - keep your accelerometer carefully oriented during the ride - then that acceleration times your mass would give you the vertical forces. Should be easy given with Logger Pro.

-HS

by , 30 Apr 2013 13:25
30 Apr 2013 13:21
in discussion Hidden / Per page discussions » Two Source Interference

The double slit effectively creates two coherent sources of light. I'm not quantum physicist but I think you'd have to work pretty hard to create to separate sources of light that were coherent. So there would be no disadvantage that I can think of other that the extreme unlikeliness of it happening.

-HS

by , 30 Apr 2013 13:21
aidan (guest) 30 Apr 2013 01:44
in discussion Hidden / Per page discussions » Lab Ideas

i can not thank you enough. I think that the vertical net force is a great idea. one last question >< to othe normal force you need the velocity, and for vertical circular motion would the equation be (2*pi*r)/T = v or v=squareroot (g*r). because the motion is changing direction then the velocity would change, i'm very confused on how to find the velocity :/

by aidan (guest), 30 Apr 2013 01:44
mayuri (guest) 29 Apr 2013 16:21
in discussion Hidden / Per page discussions » Two Source Interference

nothing is impossible so why two different source of light cannot be coherent , in this world ? and suppose if two different source of light is coherent then what will be the advantages as well as disadvantages ? pl. ans. me!!

by mayuri (guest), 29 Apr 2013 16:21
29 Apr 2013 13:49
in discussion Hidden / Per page discussions » Lab Ideas

The enterprise ride sound like a good one. If it rotates quickly it might be interesting to look at the vertical net force… Do you get a "weightless" feeling at the top or a "heavy" feeling at the bottom?

As for doing labs with out the riders mass - I would say measure it. Stand on a scale and convert to the kg. No harm in doing some measurements below gathering data. You'd do the same if you were doing a more typical lab.

by , 29 Apr 2013 13:49
aidan (guest) 29 Apr 2013 04:55
in discussion Hidden / Per page discussions » Lab Ideas

Thanks! the ride would the "enterprise" so it is like a mini ferris wheel that goes super fast. How is it possible to do labs where the formula requires the mass? because the mass of the ride isnt given?

by aidan (guest), 29 Apr 2013 04:55
28 Apr 2013 05:05
in discussion Hidden / Per page discussions » Notes

Yep yep. This is all based on the old curriculum. I haven't taught IB physics in a while so I haven't update the syllabus details, but most of the content should still be relevant.

-HS

by , 28 Apr 2013 05:05
28 Apr 2013 05:04
in discussion Hidden / Per page discussions » Lab Ideas

Are there any rotating rides? I remember the ride with a whole bunch of swings that rotated and all the swings started to "hang" at an angle. What about measuring the acceleration or the velocity? This would allow you to estimate the tension force and predict the angle of the swing (probably need to estimate the radius too)?

The period of the ride sounds great - I'm not familiar with the ride so I can't say whether it'll work or not.

What about simple bouncing rides? Maybe, the kind with horses that kids wobble back and forth on. You could measure the period of the spring as a function of rider weight?

That's all got at the moment - made a trans-Atlantic flight to get our robotics team to the world championships… my brain is mush.

-HS

by , 28 Apr 2013 05:04
Howard (guest) 27 Apr 2013 23:59
in discussion Hidden / Per page discussions » Notes

Hi,

thank you for the notes!! it's all very helpful when I'm studying for the exams… which is in two weeks :/ But I was also wondering if this is on par with the old curriculum cause the numbers don't match up all the time.

by Howard (guest), 27 Apr 2013 23:59
aidan (guest) 27 Apr 2013 07:10
in discussion Hidden / Per page discussions » Lab Ideas

Hi! I'm going to Playland next week (an amusement park) and I need to plan 2 labs. I was thinking of finding the period of the ride "enterprise" as one, but I'm still researching. I don't want to do the energy of a rollercoaster because that is over done. What suggestions and tips do you have? Thanks in advance :)

by aidan (guest), 27 Apr 2013 07:10
bart simpson (guest) 27 Apr 2013 06:34
in discussion Hidden / Per page discussions » Quantum Mechanics

Notes very very useful but I think it'd be easier to understand if you defined the constants in the equations!!! Thank you very much for the helfpul notes ;)

by bart simpson (guest), 27 Apr 2013 06:34
Ana (guest) 24 Apr 2013 15:29
in discussion Hidden / Per page discussions » Quantum Mechanics

by Ana (guest), 24 Apr 2013 15:29
Harish kumar (guest) 17 Apr 2013 03:38
in discussion Hidden / Per page discussions » Special Relativity

Theory of relativity notes

by Harish kumar (guest), 17 Apr 2013 03:38
13 Apr 2013 16:49
in discussion Hidden / Per page discussions » Electromagnetic Induction

Yep. It is. I haven't taught IB Physics in several years. Use what you can…

by , 13 Apr 2013 16:49
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