What cause the pizza dough go to circular motion

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Discussion Overview

The discussion revolves around the causes of circular motion in pizza dough, exploring various explanations and theories related to physics, including intermolecular forces, torque, and Newton's laws. The scope includes conceptual reasoning and technical explanations.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • Some participants suggest that intermolecular forces are responsible for the circular motion of pizza dough, while others challenge this view.
  • One participant attributes the circular motion to the flick of the wrist of the person tossing the dough.
  • Another participant proposes that torque is the key factor in the dough's motion.
  • Concerns are raised about the relevance of intermolecular forces, with some arguing that they do not contribute to the centripetal force needed for circular motion.
  • Newton's first law is referenced, with participants discussing its implications for motion in a circular path.
  • Questions arise about why the dough remains in circular motion when it is airborne, leading to further exploration of forces acting on the dough.
  • Some participants express confusion regarding the relationship between intermolecular forces and the dough's ability to maintain circular motion.
  • There is a suggestion that if intermolecular forces were the sole reason for the dough's motion, it should theoretically spin indefinitely in space.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the cause of the circular motion in pizza dough. Multiple competing views remain, with ongoing debate about the role of intermolecular forces, torque, and the application of Newton's laws.

Contextual Notes

Participants express uncertainty regarding the definitions and implications of intermolecular forces in relation to circular motion, and there are unresolved questions about the conditions under which the dough maintains its motion.

rashida564
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my teacher said it is the intermolecular forces between the particle but i don't agree with them so anyone can help me .
 
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What makes pizza dough go in a circular motion is the flick of the wrist of the guy who tosses it into the air. I have to believe your teacher was just pulling your leg.
 
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it think it is the torque
 
what mean there the intermolecular force doesn't have any thing to do with circular motion
 
i have another question why did it stay in circular motion when it up
 
Newton's first Law.
 
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it don't have any link to intermolecular force
 
Newton's first law said the object tend to move in straight line
 
the teacher said if the body move in circular path he need a force
 
  • #10
rashida564 said:
the teacher said if the body move in circular path he need a force
A net force, which is the sum of the inter-molecular forces acting on a piece of dough
 
  • #11
but way it is the inter-molecular
 
  • #12
i don't get it i think it's worng the inter-molecular is attraction between particle and it is not to the center
 
  • #13
and if it the inter-molecular force then it should rotate for ever
 
  • #14
rashida564 said:
i don't get it i think it's worng the inter-molecular is attraction between particle and it is not to the center
Most dough particles have no contact to the center, just to other dough particles via inter-molecular forces.
 
  • #15
rashida564 said:
and if it the inter-molecular force then it should rotate for ever
It would in space.
 
  • #16
that mean because the inter-molecular force ? and if it the reason why do not other body react in the same way
 
  • #17
rashida564 said:
why do not other body react in the same way
Any body can spin forever in space if the inter-molecular forces provide enough centripetal force. Otherwise it will fly apart.
 
  • #18
rashida564 said:
what mean there the intermolecular force doesn't have any thing to do with circular motion

Er... hello? Try just tossing it vertically upwards without any spin? The "intermolecular" forces are still there (or else the pizza dough will fall apart), yet, it is NOT spinning. So how can that be the "cause" of the spin?

This is one of the most awkward thread that I've come across lately.

Zz.
 
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  • #19
rashida564 said:
and if it the inter-molecular force then it should rotate for ever
If it were not for the inter molecular forces, the dough would fly apart. It would not be constrained to move in a circle but it would take a tangential route towards the wall.
But spinning pizza is complicated and probably not a good model with which to learn the basics. Many of the points raised in this thread are totally valid but they may appear to be contradictory when they're not.
 
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  • #20
G
 

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