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RECENT POSTS IN THIS TOPIC

Ramona Taylor: on 9/27/14 at 9:48am UTC, wrote Guys, Your video is amazing! You made physics interesting and vibrate!! ...

Tim Blais: on 9/25/14 at 6:23am UTC, wrote Very nice, guys! Your camera work and shot placement are much better than I...

madeleine richter: on 9/11/14 at 16:46pm UTC, wrote Hi guys! Can you find a minute to comment on and rate our video?

Sorana Stoica: on 9/10/14 at 18:13pm UTC, wrote Your video is very interesting, and I loved it! My video is A universe in...

Kristen Hamilton: on 9/9/14 at 14:47pm UTC, wrote Hey guys, This is a really neat video. That long exposure photo turned out...

Cristinel Stoica: on 9/9/14 at 5:55am UTC, wrote Very nice and entertaining video! I wish you good luck in the contest. You...

Nidahl Haddad: on 9/9/14 at 4:19am UTC, wrote Hey there Ian + Grant! I just wanted to say that I really enjoyed your...

Marc Séguin: on 9/2/14 at 2:41am UTC, wrote Ian and Grant, Congratulations for a very dynamic video, which was well...


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FQXi FORUM
July 21, 2018

CATEGORY: Show Me the Physics! Video Contest (2014) [back]
TOPIC: Explained: Centripetal Force by Ian C Harris [refresh]
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Ian C Harris wrote on Aug. 6, 2014 @ 20:42 GMT
Video Image





Video URL

https://www.youtube.com/watch?v=grJTOsZKsmk



Video Description

Welcome to Explained! This is a show where we demonstrate physics concepts in fun ways. In this episode we cover the principles behind centripetal force. In the video we lit steel wool on fire and spun it in a circle to showcase the physics behind centripetal motion. Do not attempt the main experiment at home! Thanks for watching!

Video Co-Creator(s)

Grant Karolich


Video Creator Bio

Our names are Ian Harris and Grant Karolich. We are two graduating seniors from Glenbard West High School. We both took physics AP our senior year and thoroughly enjoyed it. We are looking to continue studying similar subjects as future engineers at University of Illinois at Urbana Champaign. We love being able to combine our knowledge of physics with our passion for filmmaking, and this contest provided us with that opportunity.

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Member Marc Séguin wrote on Sep. 2, 2014 @ 02:41 GMT
Ian and Grant,

Congratulations for a very dynamic video, which was well shot and well edited. Pretty legit for graduating high school seniors! :)

May I make a few suggestions if you ever do an updated version or a follow-up?

1) Around the 1 minute mark, when you state the equations for circular motion, it would have been great for them to appear in overlay over the shot of...

view entire post


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Nidahl Haddad wrote on Sep. 9, 2014 @ 04:19 GMT
Hey there Ian + Grant!

I just wanted to say that I really enjoyed your video. The editing and pacing were excellent. It was, indeed, a legit explaination of a basic physical force: I gave you 4 stars. I am interested in the real life application of centripedal forces and all I can come up with online is stuff about roller coasters. Can you tell me about some of the applications besides roller coasters and cool light shows ;)

If you have a moment, it would be much appreciated if you could tell us what you think about our video.

Best of luck in the competion guys!

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madeleine richter replied on Sep. 11, 2014 @ 16:46 GMT
Hi guys!

Can you find a minute to comment on and rate our video?

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Cristinel Stoica wrote on Sep. 9, 2014 @ 05:55 GMT
Very nice and entertaining video! I wish you good luck in the contest.

You already watched my video The puzzle of quantum reality, I would like to invite you to watch and rate my other video, Can a black hole keep a secret?.

Best regards,

Cristi

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Kristen Hamilton wrote on Sep. 9, 2014 @ 14:47 GMT
Hey guys,

This is a really neat video. That long exposure photo turned out great!

If you can find the time to watch and rate my video, "The Cool Physics of Refrigeration," before the Friday deadline, it would be greatly appreciated. Thanks!

David

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Sorana Dana Stoica wrote on Sep. 10, 2014 @ 18:13 GMT
Your video is very interesting, and I loved it!

My video is A universe in a cup of water, I hope you will like it too.

I wish you success!

Victor

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Tim Blais wrote on Sep. 25, 2014 @ 06:23 GMT
Very nice, guys! Your camera work and shot placement are much better than I know how to do. The sparks are an excellent way to visualize what's going on, and the time-lapse shot is truly spectacular. Were you just burning steel wool? That's a physics video in itself...

In terms of the explanation section, I'd caution that it's usually better to find a way to explain something in terms an non-physics viewer can understand. For example, WHY should the acceleration of a circular object be v2/r? It's not immediately intuitive that an object travelling at a constant velocity is accelerating at all, and more particularly, why THIS formula out of all possible dimensionally correct formulas? The viewer should really be able to walk away with an intrinsic intuition for why the object behaves the way it does. I suppose a really easy way to at least show that there are forces at work, in this case, is just to encourage the audience to try the tennis-ball themselves, and feel how they have to keep changing the direction in which their arm is exerting a force. Make it something undeniable.

Anyways, hope you guys do well! My videos are the "A Capella Science" ones if you haven't rated them yet :)

-Tim

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Ramona Leigh Taylor wrote on Sep. 27, 2014 @ 09:48 GMT
Guys,

Your video is amazing! You made physics interesting and vibrate!!

Thanks for sharing and your comments on my video, Air is Matter.

Ramona

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