All measurements of position and velocity must be made relative to some frame of reference. For example, if we are studying the motion of an object in an airliner traveling at great speed, we could calculate the motion of the object with respect to the interior of the airliner, or to the surface of the Earth. An inertial frame of reference is one that is not accelerating (including rotation). The use of an inertial frame of reference, which will be the case for all elementary calculations, is often not explicitly stated but may generally be assumed unless stated otherwise.
The reference point (analogous to the origin of a Cartesian system) is called the pole, and the ray from the pole in the reference direction is the polar axis. The distance from the pole is called the radial coordinate or radius, and the angle is called the angular coordinate, polar angle, or azimuth.
History
The concepts of angle and radius were already used by ancient peoples of the first millennium BC. The Greek astronomer and astrologerHipparchus (190–120 BC) created a table of chord functions giving the length of the chord for each angle, and there are references to his using polar coordinates in establishing stellar positions.
In On Spirals, Archimedes describes the Archimedean spiral, a function whose radius depends on the angle. The Greek work, however, did not extend to a full coordinate system.
The terms centrifugal and centripetal forces are the most confued concepts in physics. Let's understand what are centripetal and centrifugal forces and which to use when.
published: 23 Dec 2020
Centrifugal Force Does NOT Exist!!
When it comes to rotation, things get really REALLY weird... so weird, in fact, that you experience things that play tricks on your perception. In this video, I demonstrate this by having fun on a merry-go-round.
Video Links in Credits:
What The HECK Are Fields? http://youtu.be/nxi8hGeicCM
Why Does Entropy Even Matter? http://youtu.be/qQhv3YhiJ98
________________________________
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published: 09 May 2014
The Magic of Centrifugal Force
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Steve Spangler is a bestselling author, STEM educator and Emmy award-winning television personality with more than 2,100 television appearances to his credit. Steve appeared as a regular guest on the Ellen DeGeneres Show from 2007-2022. Learn more about Steve at https://stevespangler.com/about-steve-spangler/
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published: 29 Jul 2024
Centripetal or Centrifugal Force Demo? #physics
published: 22 Mar 2024
Centripetal Force
In this animated physics video, your students will learn about centripetal force and Newton's second law.
This video was made for the PBS Learning Media library, thanks to a generous grant from NASA. It was produced in collaboration with WNET Education Department.
published: 05 May 2014
Proof that "The Centrifugal Force" is not real! | Doc Physics
Centripetal force is needed to keep things moving in a circle. And why don't they want to? THEY JUST WANT TO GO IN A STRAIGHT LINE. REALLY. THAT'S ALL EVERYTHING WANTS TO DO.
P.S. If you have a master's degree or PhD in physics and would like to talk to me about rotating reference frames, I'd love to. But this is not the right context. This video's purpose is to demonstrate inertia in inertial reference frames. You know, the ones where Newton's Laws apply. Yeah, those. Certainly you'll agree that inertia is of the greatest conceptual importance. As a teacher, I have found that most people I meet do not have a conceptual understanding of inertia though they are able to recite Newton's First Law in a droning voice when asked. Words with no meaning. Blech.
BTW - Those who like ...
published: 28 Oct 2013
12 Centripetal and Centrifugal Force
published: 22 Nov 2018
IDTIMWYTIM: Centrifugal Force
In this edition of IDTIMWYTIM, Hank addresses the so-called centrifugal force, and explains why you really mean centripetal force.
Like SciShow on Facebook: http://www.facebook.com/scishow
Follow SciShow on Twitter: http://www.twitter.com/scishow
References for this episode:
http://www.lhup.edu/~dsimanek/glossary.htm
http://phun.physics.virginia.edu/topics/centrifugal.html
http://www.newton.dep.anl.gov/askasci/phy00/phy00305.htm
published: 05 Jun 2012
Centripetal And Centrifugal Force Practical Physics Practical
Centripetal And Centrifugal Force Practical Physics Practical
published: 16 Jan 2025
Centrifugal Force
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The terms centrifugal and centripetal forces are the most confued concepts in physics. Let's understand what are centripetal and centrifugal forces and which to...
The terms centrifugal and centripetal forces are the most confued concepts in physics. Let's understand what are centripetal and centrifugal forces and which to use when.
The terms centrifugal and centripetal forces are the most confued concepts in physics. Let's understand what are centripetal and centrifugal forces and which to use when.
When it comes to rotation, things get really REALLY weird... so weird, in fact, that you experience things that play tricks on your perception. In this video, I...
When it comes to rotation, things get really REALLY weird... so weird, in fact, that you experience things that play tricks on your perception. In this video, I demonstrate this by having fun on a merry-go-round.
Video Links in Credits:
What The HECK Are Fields? http://youtu.be/nxi8hGeicCM
Why Does Entropy Even Matter? http://youtu.be/qQhv3YhiJ98
________________________________
More videos at: http://www.youtube.com/TheScienceAsylum
T-Shirts: http://scienceasylum.spreadshirt.com/
Vlog: http://www.youtube.com/TheNickLucid
Facebook: http://www.facebook.com/ScienceAsylum
Twitter: @nicklucid http://twitter.com/nicklucid
Google+: http://www.google.com/+Scienceasylum
Main Site: http://www.scienceasylum.com/
Logo designed by: Ben Sharef
Stock Photos and Clipart
- Wikimedia Commons http://commons.wikimedia.org/wiki/Main_Page
- Openclipart http://openclipart.org/
- or I made them myself...
________________________________
COOL LINKS & SOURCES
Centripetal Force:
http://en.wikipedia.org/wiki/Centripetal_force
Centrifugal Force:
http://en.wikipedia.org/wiki/Centrifugal_force
SciShow's take on this issue:
http://youtu.be/DLgy6rVV-08
"Safe" Merry-Go-Round:
http://chautauquanykids.blogspot.com/2011/07/roseland-playground.html
When it comes to rotation, things get really REALLY weird... so weird, in fact, that you experience things that play tricks on your perception. In this video, I demonstrate this by having fun on a merry-go-round.
Video Links in Credits:
What The HECK Are Fields? http://youtu.be/nxi8hGeicCM
Why Does Entropy Even Matter? http://youtu.be/qQhv3YhiJ98
________________________________
More videos at: http://www.youtube.com/TheScienceAsylum
T-Shirts: http://scienceasylum.spreadshirt.com/
Vlog: http://www.youtube.com/TheNickLucid
Facebook: http://www.facebook.com/ScienceAsylum
Twitter: @nicklucid http://twitter.com/nicklucid
Google+: http://www.google.com/+Scienceasylum
Main Site: http://www.scienceasylum.com/
Logo designed by: Ben Sharef
Stock Photos and Clipart
- Wikimedia Commons http://commons.wikimedia.org/wiki/Main_Page
- Openclipart http://openclipart.org/
- or I made them myself...
________________________________
COOL LINKS & SOURCES
Centripetal Force:
http://en.wikipedia.org/wiki/Centripetal_force
Centrifugal Force:
http://en.wikipedia.org/wiki/Centrifugal_force
SciShow's take on this issue:
http://youtu.be/DLgy6rVV-08
"Safe" Merry-Go-Round:
http://chautauquanykids.blogspot.com/2011/07/roseland-playground.html
What’s Steve doing now? ► https://linktr.ee/stevespangler
Other Channels…
The Spangler Effect ► https://www.youtube.com/user/TheSpanglerEffect
Spangler Scienc...
In this animated physics video, your students will learn about centripetal force and Newton's second law.
This video was made for the PBS Learning Media librar...
In this animated physics video, your students will learn about centripetal force and Newton's second law.
This video was made for the PBS Learning Media library, thanks to a generous grant from NASA. It was produced in collaboration with WNET Education Department.
In this animated physics video, your students will learn about centripetal force and Newton's second law.
This video was made for the PBS Learning Media library, thanks to a generous grant from NASA. It was produced in collaboration with WNET Education Department.
Centripetal force is needed to keep things moving in a circle. And why don't they want to? THEY JUST WANT TO GO IN A STRAIGHT LINE. REALLY. THAT'S ALL EVERY...
Centripetal force is needed to keep things moving in a circle. And why don't they want to? THEY JUST WANT TO GO IN A STRAIGHT LINE. REALLY. THAT'S ALL EVERYTHING WANTS TO DO.
P.S. If you have a master's degree or PhD in physics and would like to talk to me about rotating reference frames, I'd love to. But this is not the right context. This video's purpose is to demonstrate inertia in inertial reference frames. You know, the ones where Newton's Laws apply. Yeah, those. Certainly you'll agree that inertia is of the greatest conceptual importance. As a teacher, I have found that most people I meet do not have a conceptual understanding of inertia though they are able to recite Newton's First Law in a droning voice when asked. Words with no meaning. Blech.
BTW - Those who like accelerated reference frames and their challenges may enjoy this video about impending motion of rigid solids:
https://www.youtube.com/watch?v=JLHVf3eJKak
I made it. Maybe you like watching physics videos in your spare time.
And I will SORTA agree with you if you claim that there's a centrifugal force on the wood ring (as a 3rd-law counterpart to the centripetal force on the ball). I like Newton's 3rd as much as the next guy, but you're creating a REALLY shady definition. If we had no friction, the ring wouldn't even be moving. How you gonna define "center fleeing" for something that is not only not going in a circle...it's not moving at all??!@?#$%?^$#?%$# But that's just a technical complaint. Really, I am just trying to convince early physics students that the BALL feels no outward force. 'Cuz trust me, THEY THINK IT DOES. Ask your mom - she may even think the ball feels an outward force. My people often predict that the ball's path will curve OUTWARD from the circle. That's what I'm really trying to cure here. Love you, though! Keep warm this winter!
Centripetal force is needed to keep things moving in a circle. And why don't they want to? THEY JUST WANT TO GO IN A STRAIGHT LINE. REALLY. THAT'S ALL EVERYTHING WANTS TO DO.
P.S. If you have a master's degree or PhD in physics and would like to talk to me about rotating reference frames, I'd love to. But this is not the right context. This video's purpose is to demonstrate inertia in inertial reference frames. You know, the ones where Newton's Laws apply. Yeah, those. Certainly you'll agree that inertia is of the greatest conceptual importance. As a teacher, I have found that most people I meet do not have a conceptual understanding of inertia though they are able to recite Newton's First Law in a droning voice when asked. Words with no meaning. Blech.
BTW - Those who like accelerated reference frames and their challenges may enjoy this video about impending motion of rigid solids:
https://www.youtube.com/watch?v=JLHVf3eJKak
I made it. Maybe you like watching physics videos in your spare time.
And I will SORTA agree with you if you claim that there's a centrifugal force on the wood ring (as a 3rd-law counterpart to the centripetal force on the ball). I like Newton's 3rd as much as the next guy, but you're creating a REALLY shady definition. If we had no friction, the ring wouldn't even be moving. How you gonna define "center fleeing" for something that is not only not going in a circle...it's not moving at all??!@?#$%?^$#?%$# But that's just a technical complaint. Really, I am just trying to convince early physics students that the BALL feels no outward force. 'Cuz trust me, THEY THINK IT DOES. Ask your mom - she may even think the ball feels an outward force. My people often predict that the ball's path will curve OUTWARD from the circle. That's what I'm really trying to cure here. Love you, though! Keep warm this winter!
In this edition of IDTIMWYTIM, Hank addresses the so-called centrifugal force, and explains why you really mean centripetal force.
Like SciShow on Facebook: ht...
In this edition of IDTIMWYTIM, Hank addresses the so-called centrifugal force, and explains why you really mean centripetal force.
Like SciShow on Facebook: http://www.facebook.com/scishow
Follow SciShow on Twitter: http://www.twitter.com/scishow
References for this episode:
http://www.lhup.edu/~dsimanek/glossary.htm
http://phun.physics.virginia.edu/topics/centrifugal.html
http://www.newton.dep.anl.gov/askasci/phy00/phy00305.htm
In this edition of IDTIMWYTIM, Hank addresses the so-called centrifugal force, and explains why you really mean centripetal force.
Like SciShow on Facebook: http://www.facebook.com/scishow
Follow SciShow on Twitter: http://www.twitter.com/scishow
References for this episode:
http://www.lhup.edu/~dsimanek/glossary.htm
http://phun.physics.virginia.edu/topics/centrifugal.html
http://www.newton.dep.anl.gov/askasci/phy00/phy00305.htm
Watch more videos on http://www.brightstorm.com/science/physics
SUBSCRIBE FOR All OUR VIDEOS!
https://www.youtube.com/subscription_center?add_user=brightstorm2...
Watch more videos on http://www.brightstorm.com/science/physics
SUBSCRIBE FOR All OUR VIDEOS!
https://www.youtube.com/subscription_center?add_user=brightstorm2
VISIT BRIGHTSTORM.com FOR TONS OF VIDEO TUTORIALS AND OTHER FEATURES!
http://www.brightstorm.com/
LET'S CONNECT!
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Watch more videos on http://www.brightstorm.com/science/physics
SUBSCRIBE FOR All OUR VIDEOS!
https://www.youtube.com/subscription_center?add_user=brightstorm2
VISIT BRIGHTSTORM.com FOR TONS OF VIDEO TUTORIALS AND OTHER FEATURES!
http://www.brightstorm.com/
LET'S CONNECT!
Facebook ► https://www.facebook.com/brightstorm
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Twitter ► https://twitter.com/brightstorm_
Brightstorm website ► https://www.brightstorm.com/
The terms centrifugal and centripetal forces are the most confued concepts in physics. Let's understand what are centripetal and centrifugal forces and which to use when.
When it comes to rotation, things get really REALLY weird... so weird, in fact, that you experience things that play tricks on your perception. In this video, I demonstrate this by having fun on a merry-go-round.
Video Links in Credits:
What The HECK Are Fields? http://youtu.be/nxi8hGeicCM
Why Does Entropy Even Matter? http://youtu.be/qQhv3YhiJ98
________________________________
More videos at: http://www.youtube.com/TheScienceAsylum
T-Shirts: http://scienceasylum.spreadshirt.com/
Vlog: http://www.youtube.com/TheNickLucid
Facebook: http://www.facebook.com/ScienceAsylum
Twitter: @nicklucid http://twitter.com/nicklucid
Google+: http://www.google.com/+Scienceasylum
Main Site: http://www.scienceasylum.com/
Logo designed by: Ben Sharef
Stock Photos and Clipart
- Wikimedia Commons http://commons.wikimedia.org/wiki/Main_Page
- Openclipart http://openclipart.org/
- or I made them myself...
________________________________
COOL LINKS & SOURCES
Centripetal Force:
http://en.wikipedia.org/wiki/Centripetal_force
Centrifugal Force:
http://en.wikipedia.org/wiki/Centrifugal_force
SciShow's take on this issue:
http://youtu.be/DLgy6rVV-08
"Safe" Merry-Go-Round:
http://chautauquanykids.blogspot.com/2011/07/roseland-playground.html
In this animated physics video, your students will learn about centripetal force and Newton's second law.
This video was made for the PBS Learning Media library, thanks to a generous grant from NASA. It was produced in collaboration with WNET Education Department.
Centripetal force is needed to keep things moving in a circle. And why don't they want to? THEY JUST WANT TO GO IN A STRAIGHT LINE. REALLY. THAT'S ALL EVERYTHING WANTS TO DO.
P.S. If you have a master's degree or PhD in physics and would like to talk to me about rotating reference frames, I'd love to. But this is not the right context. This video's purpose is to demonstrate inertia in inertial reference frames. You know, the ones where Newton's Laws apply. Yeah, those. Certainly you'll agree that inertia is of the greatest conceptual importance. As a teacher, I have found that most people I meet do not have a conceptual understanding of inertia though they are able to recite Newton's First Law in a droning voice when asked. Words with no meaning. Blech.
BTW - Those who like accelerated reference frames and their challenges may enjoy this video about impending motion of rigid solids:
https://www.youtube.com/watch?v=JLHVf3eJKak
I made it. Maybe you like watching physics videos in your spare time.
And I will SORTA agree with you if you claim that there's a centrifugal force on the wood ring (as a 3rd-law counterpart to the centripetal force on the ball). I like Newton's 3rd as much as the next guy, but you're creating a REALLY shady definition. If we had no friction, the ring wouldn't even be moving. How you gonna define "center fleeing" for something that is not only not going in a circle...it's not moving at all??!@?#$%?^$#?%$# But that's just a technical complaint. Really, I am just trying to convince early physics students that the BALL feels no outward force. 'Cuz trust me, THEY THINK IT DOES. Ask your mom - she may even think the ball feels an outward force. My people often predict that the ball's path will curve OUTWARD from the circle. That's what I'm really trying to cure here. Love you, though! Keep warm this winter!
In this edition of IDTIMWYTIM, Hank addresses the so-called centrifugal force, and explains why you really mean centripetal force.
Like SciShow on Facebook: http://www.facebook.com/scishow
Follow SciShow on Twitter: http://www.twitter.com/scishow
References for this episode:
http://www.lhup.edu/~dsimanek/glossary.htm
http://phun.physics.virginia.edu/topics/centrifugal.html
http://www.newton.dep.anl.gov/askasci/phy00/phy00305.htm
Watch more videos on http://www.brightstorm.com/science/physics
SUBSCRIBE FOR All OUR VIDEOS!
https://www.youtube.com/subscription_center?add_user=brightstorm2
VISIT BRIGHTSTORM.com FOR TONS OF VIDEO TUTORIALS AND OTHER FEATURES!
http://www.brightstorm.com/
LET'S CONNECT!
Facebook ► https://www.facebook.com/brightstorm
Pinterest ► https://www.pinterest.com/brightstorm/
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All measurements of position and velocity must be made relative to some frame of reference. For example, if we are studying the motion of an object in an airliner traveling at great speed, we could calculate the motion of the object with respect to the interior of the airliner, or to the surface of the Earth. An inertial frame of reference is one that is not accelerating (including rotation). The use of an inertial frame of reference, which will be the case for all elementary calculations, is often not explicitly stated but may generally be assumed unless stated otherwise.