Conservation of Energy Experiment

AI Thread Summary
The discussion focuses on conducting experiments to demonstrate the conservation of energy principle. Suggestions include rolling a ball up a frictionless ramp with motion detectors to measure potential energy, and dropping a ball in a vacuum tube onto a spring to compare maximum displacements. Another idea involves using a magnetized ball on a non-magnetic string inside a copper pipe to record induced current. These experiments aim to effectively illustrate energy conservation concepts. Overall, participants share innovative ideas for practical applications of the conservation of energy equation.
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1. Our lab assignment is to conduct and experiment to show the the conservation of engergy equation is proven. Does anyone have any suggestions at some experiment ideas?



2. One of our ideas was to roll a ball up a ramp and put motion detectors on the x and y-axis and show the potential energy of the ball.
 
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Is the ball on the ramp frictionless?
 
hell ya
 
Um, how bout using a ball in an vacuum tube and dropping it onto a spring record the maximum displacement it produces on the spring, and record the height the ball was dropped from. Repeat the experiment only this time place the ball on the spring and displace the spring by the maximum displacement that you got for the first part, and see if the ball reaches the same height.

Or maybe . ..
l do this experiment with a magnetised ball on a non-magnetic string inside a copper wire pipe and recorded the induced current

Hope this helps
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
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