Sunday, February 12, 2012

Im doing a lab where you have to fig out if a paper clip can float in water, why did the paperclip float?

in the water

Im doing a lab where you have to fig out if a paper clip can float in water, why did the paperclip float?
There is surface tension on the water naturally - ever see those water bugs skim or run across the pond? If you add a few drops of liquid soap to the water it will disrupt the tension and the clip will sink.
Reply:its mass is lighter than the mass of water. And it has greater surface area
Reply:The surface tension of the water acts like a very thin 'skin' and, provided that the paper clip isn't dropped into the water but, is placed gently on a piece of Kleenex, on the surface of the water, as the Kleenex adsorbs water and sinks, the clip is left floating.


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