Conserved Energy vs. Used Energy

  • Thread starter 1irishman
  • Start date
1. The problem statement, all variables and given/known data
I do not understand what it means to conserve momentum, or conserve kinetic energy etc.


2. Relevant equations
the 'laws of conservation.'


3. The attempt at a solution
I think of the word 'conserve' as not using or saving. Please help me understand?
Thank you.
 

mgb_phys

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'conserved' in the sense of 'to keep'
Energy is conserved means there is no energy gained or lost in the process.
 
Oh. So...position and/or motion.....sorry....i'm still lost here...please help?
 

cepheid

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Oh. So...position and/or motion.....sorry....i'm still lost here...please help?
It's not really clear what you're asking. Can you clarify what you are still having difficulty with? Did you understand what was in mgb_phys's post?
 
What "energy" is gained or lost? Gained or lost from where? What is energy?
 

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