Help with 6th Grade Physics: Block and Tackle, Potential & Kinetic Energy

AI Thread Summary
The discussion focuses on helping a 6th grader understand block and tackle systems in relation to potential and kinetic energy. Participants suggest resources like HyperPhysics and Wikipedia for basic explanations of pulleys and their mechanical advantages. They emphasize that such machines allow users to exert less force over greater distances, making work easier. The conversation highlights the need for clear examples that are appropriate for a 6th-grade level. Overall, the goal is to provide accessible explanations and resources for understanding these physics concepts.
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1. h gre problem statement, all variables and given/known data

My 6th grader needs help in her homework: She needs examples of Block and tackle with potential and kinetic energy. Could someone please point us in the right direction?

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The Attempt at a Solution


web search, and I am not a physics person, just trying to help an 11 year old!
 
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I don't know about potential and kinetic energy being the main topic there. I would have a different description for such machines, like many other common objects -- nutcracker, wheelbarrow, crowbar, etc. I'd say the main idea is that such machines make it easier for a person to do work by letting you apply only half the force, as long as you make up for it by applying that force over twice the distance, or you can apply only one-third as much force, as long as you're willing to apply that force over three times as much distance, etc.
 

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