物理实验--筷子提米
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物理实验 ——筷子提米
实验现象
整个杯子被提起 玻璃杯连水带米总重约720g
实验原理
压力
压力
由于米粒在加入水后膨 胀,从而将原来杯子中 的空气挤出,这时杯内 的压强小于外界压强, 从而使筷子、米、玻璃 杯紧紧地结合在一起, 所以筷子就能轻松将整 个杯子提起。
Thank you!
2015.8.13 晚
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北京市xx学校 初x(x)班
xxx xx号
主要实验材料
01 玻璃杯 02 筷子 03 足够的米 04 足够的温水
实验步骤
1
将筷子直立于 玻璃杯中央, 缓慢地将,然后用 手压紧,等待 七分钟。
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时间到后,手 抓住筷子,并 轻轻向上提, 可以将整个玻 璃杯提起。
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