Digital Experimental Research On "Three Laws Of Gases

Physics is a discipline based on experiments.Compared with classroom teaching,experimental teaching is more intuitive and can better cultivate students’ ability of scientific inquiry.and with the development of the times,the country’s promotion of education informatization,so that physics experiments embark on a new path to innovative development,just like that,digital experiments into the field of vision of teachers and students,this paper through the analysis of previous literature,the thermal science in the most important "three laws of gas" digital experiment to explore,improve the digital experiment in the thermal part.Three thermal digital experiments were designed using the Passport system under the American PASCO company.In the investigation of Boyle’s law experiment,the airtightness of the experimental device was optimized and a rule was found that the slower the pushing speed,the smaller the error.Suggestions were also given to avoid large movements and touching the injection syringe during the experiment,and to leave stopping time during the pushing process to reduce error by heat exchange between the air in the injection syringe and the outside.In the investigation of Charles’ s law experiment,the control variable method was utilized to maintain consistency in temperature among the water in the test tube and the beaker,as well as the indoor temperature.It was found that the temperature probe of the thermometer is more accurate when placed lower in the test tube,and the position of the pressure sensor’s probe does not affect the measured experimental data.In the investigation of Gay-Lussac’s law experiment,it was discovered through literature review that previous experiments gave theoretical errors.The author improved the design and proposed a more accurate experimental plan to explore the law of volume changing with temperature under isobaric changes.Through this paper,digital experiments can be used to improve the disadvantages of thermal experiments that are difficult to operate and not easy to observe,which plays a crucial role in cultivating students’ core literacy in physics.