Physics Discussion Question On My Roller Coaster Lab (Energy-Related)?

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SUMMARY

The discussion centers on energy loss in a roller coaster lab experiment involving a metal marble. Key factors contributing to energy dissipation include friction, rolling resistance, mechanical flexing of the track, sound energy, and thermal energy due to friction. The equations for potential energy (PE = M*g*height) and kinetic energy (KE = 1/2mv^2) are fundamental to understanding the energy transformations occurring during the marble's motion. Additionally, induced currents from magnetic interactions can further reduce the energy available for motion.

PREREQUISITES
  • Understanding of potential energy and kinetic energy equations
  • Familiarity with concepts of friction and rolling resistance
  • Basic knowledge of energy transformation principles
  • Awareness of sound energy and thermal energy in mechanical systems
NEXT STEPS
  • Research the effects of friction on energy loss in mechanical systems
  • Explore the concept of rolling resistance in different materials
  • Learn about energy transformation in roller coaster physics
  • Investigate induced currents and their impact on energy efficiency
USEFUL FOR

Students in physics courses, educators teaching energy concepts, and anyone interested in the mechanics of roller coasters and energy conservation principles.

wiffellballki
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Homework Statement



We did this roller coaster lab where we had a metal marble roll up and down this roller coaster track.

One of the questions he asked us was "is energy "missing?" explain where it went."

I know friction takes some of it, but I am not good at wording it right to sound good. Help??

Homework Equations



PE= M*g*height
KE= 1/2mv^2

The Attempt at a Solution



I know it has to do with friction taking away some of it, but i need to make it sound good!
 
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Well there's some rolling resistance in the metal ball - not a lot though!
Then the track mechanically flexes as the marble passes - that's much more.
Can you hear that marble? - sound energy is very small though.
Heating of the marble and track due to their frictional interaction.
If the marble does any sliding rather than rolling there's plenty of energy loss.
Is the marble magnetic? Induced currents in any nearby conductor will siphon off more energy.

This list is not exhaustive I'm sure.
 

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