Kinetic Karnival - Episode 2: Rotation
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The bundle opens with a guided classroom discussion on "A New Kind of Motion": rotation. It's fundamentally different from linear motion."A Question of Balance" is a PhET-fueled lab activity that sets and applies the conditions for balance using the Balancing Act sim. It's a nice precursor to an in-Price $14.99Original Price $20.92Save $5.93
Episodes 1, 2, 3, and 5 are included. Episodes 4 and 6 were omitted. See individual item listings for complete details.Price $6.99Original Price $8.97Save $1.98
Description
ROTATION [https://youtu.be/QdypVUodtYk]
The first third of this episode is devoted to circular motion. The second two thirds are devoted to rotation. So I created a question set for the circular motion section and a set for the rotation section.
Part 1: Circular Motion · 7 questions
Jearl discusses centrifugal force and centripetal force as he prepares to ride The Rotor (a cylinder that spins up to speed before removing the floor). He describes the physics of the ride while in the spin cycle. Next he describes the motion of roller coasters that turns riders upside down.
Part 2: Rotation · 20 questions
Jearl and a crew of Kinetic Karnies experiment with torque, moment of inertia, and angular momentum on a merry-go-round. Jearl goes for more of a ride than he bargained for. Next he visits a rotating stool in a playground with a pair of bricks and a bicycle wheel. Surprising results abound*. Jearl takes things into the studio and learns a few taekwondo throws. The hard way. He proceeds to his battery of fresh/hard-boiled egg tests before showing off a tippy-top. Finally, he hits the natatorium to explain how cats land on their feet before narrating a diver's mastery of angular momentum. Since Jearl knows the physics, he attempts to match the diver's graceful acrobatics.
*The playground film crew didn't have a security detail and the children who were eager to be in the background of the shot were big Dukes of Hazzard fans: they parade a Confederate battle flag behind Jearl's back. Students transfixed by Jearl's lesson will not notice this, but it is a bit awkward.
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