Physical experiments with beverage cans Many physical experiments
Physical experiments with beverage cans Many physical experiments, demonstrations of physical laws, and also manufactory of physical toys can be done using simple aids well -known to children and youths – drinking cans. Ph. Dr. Jitka Soukupová Gymnázium Stříbro Soběslavova 1426 349 01 Stříbro Czech Republic www. debrujar. cz Do you know that: Beverage cans are both transport and drinking containers? The idea to offer beverages in cans came in 1933 in the USA? Modern beverage cans are fabricated as one-piece cylindrical containers, made from aluminum or a tin-plated steel, closed by aluminum pull-tabs? We are using beverage cans also for physical experiments? Nowadays cans are significantly lighter than before? While in 1930‘s, the cans weighted about 100 g, their weight now is about 25 g and their walls are only 0, 08 mm thick. It is not possible, as the rubber wheel is pressed down by the air. Atmospheric pressure force is about 983 N, i. e. as if the rubber is pushed by 100 kg (221 pounds) weight. As Experiment No 1: Stuck can soon as the air gets under the rubber, We need one beverage can and a rubber wheel with a hole in its center. Thread the rubber wheel on the can. Place the can on a table and push the wheel on the table so that it holds tight – we remove the air under the wheel. Now try to lift the can. Czech Science on Stage Team supported by it is easy to lift the can, as the air presses from both sides. Science on Stage CZ supported by
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