Table of Contents
What is spin motion physics?
Spin motion: Motion of an object as it rotates around an axis through its center of mass. Rotational motion: Motion around an axis of rotation. Both orbital and spin motion are examples of rotational motion. Fixed axis of rotation: A single-nonchanging axis around which the object rotates.
What causes something to spin?
Friction between the stick and the floor is the main culprit. The momentum of spinning and rolling things is called angular momentum. With tops, is that it matters where you put the weight. The farther away from the stick the mass is, the more angular momentum the top has and the harder it is to stop.
Why do spinning objects stay up?
A rotating object possesses angular momentum and this momentum must be conserved. The object will resist any change in its axis of rotation, as a change in orientation will result in a change in angular momentum. The faster the top spins the more likely it is to stay upright, and it will wobble while it spins.
How does rotation affect stability?
The faster the spin (= higher angular momentum), the more effort it takes to alter the axis of the spin (= greater stability).
What is the motion of a spinning top?
Thus, from this discussion we can easily conclude that a spinning top executes rotational motion since rotational motion is formally defined as the type of motion in which a body moves in a circle about a single line which is the axis of rotation.
What type of motion is shown by a spinning top?
Circular motion or rotation motion is seen on the spinning top.
Why does a spinning object keep spinning?
The first is the conservation of angular momentum, the law that dictates that, in the absence of external influences, something spinning must keep spinning. Because a top balances upon a tiny point, it experiences a minimal amount of friction with the surface below it, and thus continues spinning for a delightfully long time, demonstrating the law.
What is the science of fidget spinners?
1. Science? The science of fidget spinners starts before they ever start spinning. Look at it. It just sits there. Even when it appears to be doing nothing at all the spinner is exemplifying fundamental physics concepts.
How does a spinning spinner change angular momentum?
In order to change angular momentum, the spinner needs a torque (a force pushing). If the world isn’t perfect and the spinner is on an uneven surface like a pencil eraser, the tip of your finger, or even if it tilts a little, this un-aligns the center of its mass and the axis it’s spinning on.
What causes a spinning spinner to wobble?
As it does this, gravity pulls on the spinner’s center, which causes an unbalanced torque and the angular momentum changes. The spinner appears to start to wobble — but not fall over — and this is called precession. The direction of angular momentum in the image above is the same as angular velocity in the image below.