Uniform Circular Motion: Crash Course Physics #7
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Did you know that centrifugal force isn't really a thing? I mean, it's a thing, it's just not real. In fact, physicists call it a "Fictitious Force." Mind blown yet? To explore this idea further, this week Shini sits down with us to discuss centripetal force, centrifugal force, and a few other bits of physics to help us understand Uniform Circular motion. *** Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Help PBSDS win a Webby Award by voting here: https://pv.webbyawards.com/2016/online-film-video/video-channels-and-networks/science-education Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark, Eric Kitchen, Jessica Wode, Jeffrey Thompson, Steve Marshall, Moritz Schmidt, Robert Kunz, Tim Curwick, Jason A Saslow, SR Foxley, Elliot Beter, Jacob Ash, Christian, Jan Schmid, Jirat, Christy Huddleston, Daniel Baulig, Chris Peters, Anna-Ester Volozh, Ian Dundore, Caleb Weeks -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashC... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Comments
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"when the key is at the point in the circle farthest away from you" = anywhere on the circle
your meant in front :D -
talking pace is a bit fast.. but well-informed video though
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This video is really helpful.Thanks a lot for that amazing explanation!!
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Isn't centrifugal force just the equal and opposite reaction to centripetal force? In the example of the carnival ride, the seat is pushing the person towards the center, but the person is pushing the seat back with that same force. The person feels like they are because thrown outwards because they pushing the seat outwards (as the seat pushes them inwards). If I'm right, then isn't centrifugal force just as real as centripetal force?
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Hey, those rides are fun, not nauseating!! :P
But yeah, they're intense. :) -
Bless you guys, this has practically saved my GPA. So much easier to understand than what's taught in school
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So is the acceleration towards the centre of a circle constant ??
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why are pi's theta's etc imp I dont get it
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did she say "tossed about like a wet salad"?
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We're just about to start this in class, HELPED SOOO MUCH!!!
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Great course👍 it helps me to understand the physics in english
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Brilliant course with this one, and a very intelligent instructor. It's well broken down, and conceptually it just makes sense in under 10 minutes.
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'Centrifugal force' actually does exist. It is called fictitious because the rotating reference frame is not inertial. However the tendency of objects in a rotating reference frame to accelerate radially outwards , which is what we are calling 'centrifugal force' is very real. It isn't technically a 'force', because 'radially outwards' is not a valid vector direction in a rotating reference frame, but the phenomenon still exists, and from the rotating reference frame, it behaves exactly as a force does.
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At 2:48 , the key can never be parallel to the ground, since the centripetal force can never overcome the force of gravity, no matter how fast you spin the key.
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At 1:57 each word should have appeared at the same time she said it.
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I've learned that in school(im 16.years old) and let me tell you, some of the exercises are really hard.
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Thank you for this
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I feel like she's making things more complicated, assuming we haven't watched the previous videos. We already know what an acceleration is. Just tell me what equations I need
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I did what you said and my key fell down a street drain...
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Science is gai
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