Perpetual Motion Balls: Buy & Learn What You Need

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SUMMARY

The discussion centers on "Newton's Cradle," a device that visually demonstrates the principles of momentum and energy conservation. Participants clarify that while the device appears to exhibit perpetual motion, it ultimately stops due to energy losses from air resistance and deformation during impacts. The conversation also touches on the effects of a vacuum on the cradle's performance, suggesting that it would operate longer in such conditions, though not indefinitely. Additionally, the implications of using magnets in the mechanism are questioned regarding their classification as perpetual motion.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Familiarity with energy conservation principles
  • Knowledge of the effects of air resistance on moving objects
  • Basic concepts of thermodynamics related to energy loss
NEXT STEPS
  • Research the physics behind Newton's Cradle and momentum transfer
  • Explore the effects of vacuum environments on mechanical systems
  • Investigate the role of material properties in energy loss during impacts
  • Examine the concept of perpetual motion and its implications in physics
USEFUL FOR

Physics enthusiasts, educators, students studying mechanics, and anyone interested in the principles of energy conservation and motion dynamics.

justjoshus
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What do you call and where can i buy the set of balls (maybe 4 or 5) suspended in strings and when the outermost ball hits the the next one and bounces off the last one on the other end and sets off perpetual motion? I surely appreciate any ones response. Thank you. Josh
 
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Do a search on "Newton's Cradle" or "Newton's Balls".
 
Hello justjoshus.You are describing "Newtons cradle" so try googling for suppliers.There is no such thing as perpetual motion and the balls in Newtons cradle stop eventually.
 
I wonder how long it'd go on in a vacuum. I'm guessing air resistance is by far the biggest source of losses.
I'm guessing it'd go on for a surprising amount of time. Anyone got a high vacuum to try it out in?
 
It would go on for longer in a vacuum but another major source of energy loss is due to the fact that during impact the balls get slightly distorted.
 
Dadface said:
It would go on for longer in a vacuum but another major source of energy loss is due to the fact that during impact the balls get slightly distorted.

Which generates heat and sound (which dissipates as heat).
 
if magnets are involved in any mechanism of motion but it kept the motion consistent from other variables is it still considered perpetual motion??
 

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