Defining Pi for Physics

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Pi is defined as the ratio of the circumference of a circle to its diameter. A frisbee is used to show the definition of pi. The units for pi, radians, are discussed. The conversion factor between revolutions, degrees, and radians is introduced. • Want Lecture Notes? http://www.flippingphysics.com/pi.html • This is an AP Physics 1 topic. • 0:00 Intro • 0:22 The definition of pi • 0:49 Demonstrating the definition of pi • 1:35 The units for pi (radians) • 2:04 revolutions, degrees, and radians • 2:28 Please use rad for radians (not r, that is for radius) • Multilingual? Please help translate Flipping Physics videos! • http://www.flippingphysics.com/transl... • Next Vide: Introductory Arc Length Problem - Gum on a Bike Tire • http://www.flippingphysics.com/arc-le... • Previous Video: Introduction to Circular Motion and Arc Length • http://www.flippingphysics.com/arc-le... • Please support me on Patreon! • / flippingphysics • Thank you to Aarti Sangwan, Scott Carter, and Christopher Becke for being my Quality Control team for this video. • http://flippingphysics.com/quality-co...

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