What on Earth is spin? - Brian Jones
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Let’s Begin…
Why does the Earth spin? Does a basketball falling from a spinning merry-go-round fall in a curve, as it appears to, or in a straight line? How can speed be manipulated while spinning? In short, why is the spinning motion so special? Brian Jones details the dizzyingly wide array of ways that spinning affects our lives.
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Meet The Creators
- Educator Brian Jones
- Director Darcy Vorhees
- Animator Marissa Hutchins, Sarah Johnson, Tom Beuerlein
- Narrator Brian Jones
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Give some examples of the conservation of angular momentum at work in the world.
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Sofia Niosi
Lesson completed
An ice skater, a roller skater, and when basketball players spin the ball on their finger(?)
Hayden Exum
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A person ice skating.
Alexandria Collins
Lesson completed
A spinning ice skater.
Germany Moore-Satterfield
Lesson completed
good
Caleb Blease
Lesson completed
A diver who " spins rotates" the more they do the faster they will rotate. The laws of physics say that an object in motion will stay in motion until acted on by an outside force. So, if you jump and spin around on Earth you will come back down and slow down when you hit the ground. But on the moon, if you jump and spin you will most likely speed up until you hit something.
genesis barra
Lesson completed
Example 1: A high-diver who is “rotating” when jumping off the board does not need to make any physical effort to continue rotating, and indeed would be unable to stop rotating before hitting the water.
Example 2: A person holding a spinning bicycle wheel on a rotating chair. The person then turns over the bicycle wheel, causing it to rotate in an opposite direction. The wheel has an angular momentum in the upward direction.
Braden Oberg
Lesson in progress
Someone that is spinning can pull their arms in and they will spin faster.
Daniel Hill
Lesson completed
Someone on a spinning chair pulls their legs up, and the chair begins to speed up.
Haemin Park
Lesson completed
A person holding a spinning bicycle wheel on a rotating chair. The person then turns over the bicycle wheel, causing it to rotate in an opposite direction. The wheel has an angular momentum in the upward direction.
