10个兴趣物理小试验(国外英语资料).docVIP

10个趣味物理小实验(国外英语资料) 10 interesting physics experiments.Txt13 love is earnestly persuade lost; love is a long sound earnestly exhort; love is kind of helpless smile. Extracurricular expansion: 10 interesting physics experiment sources: continuing education network 2011-08-10 10:45:39[label: extracurricular expanding interesting science physics experiment] Experiment 1: observing diffusion phenomenon Prepare a cup of cold water and a cup of hot water, two small pieces of Potassium Permanganate were put into two cups of water, try to compare Potassium Permanganate in the diffusion of two cups of water. If you observe the difference of Potassium Permanganate two cup of water diffusion, think this explains what the problem is? Experiment two: feel the atmospheric pressure Take an empty aluminum cans and a pot of cold water tank mouth around the wire and the wire is fixed and screwed into Bingzhuang (to have a certain length and intensity), to pop in a small amount of water, put on an alcohol lamp heated to boiling, and continue heating for several seconds, quickly (to handle wire) the cans upside down into the cold water, and observe the phenomenon. Attention: at this time, the cans can be squashed and issued a loud noise under the influence of air pressure. The experimenter should be mentally prepared to avoid being scalded and even cause fire when he encounters other experimental instruments. This experiment has a certain risk, it is recommended under the guidance of the teacher. Experiment three: amplitude switching For two the same length of pendulum pendulum (pendulum mass larger) and a thin nylon rope, nylon rope ends are respectively fixed on the height, the middle part of the nylon line two at the upper end of the pendulum system, the suspension point are not more than 10 cm (fixed, to check whether the length of the pendulum.). Make a swing in the vertical position, the other will swing in the direction perpendicular to the direction of the nylon rope opened to