2023学年高三第一学期江浙高中(县中)发展共同体10月联考物理试题及答案

2023学年高三第一学期江浙高中(县中)发展共同体10月联考物理试题及答案,答案汇总网收集关于2023学年高三第一学期江浙高中(县中)发展共同体10月联考物理试题及答案的相关科目试卷及其答案，更多其他试卷答案请关注本网站！

第二节读后续写( One possible version)Fliss immediately took the purse to the local police station with Molly. When they arrivedFliss tied Molly to a fireplug outside and went in herself. She handed the purse to a police officerand explained everything. Greatly touched, he shook her hand and thanked her for doing her duty,promising that he would do his best to find the owner Fliss felt reassured and went back withMolly. The next day, a journalist called to make an appointment for an interview.When the journalist came, they two were on the beach. The journalist was surprised to findthat Molly was picking up litter, following her master. Fliss told the journalist it was on the wayto collecting litter that Molly had found the purse. Hearing this, Molly stopped, wagging her tailas if she understood the whole situation. Having learned about the whole story, the journalist gotto know what they did to protect the local beach. Surprised and impressed, the journalist tooksome pictures. The next day they were on the front page of the newspaper. A minor action couldmake wonders!(162 words)

7.D【解析】本题考查带电粒子在电磁复合场中的运动。根据左手定则,正离子受到竖直向下的洛伦兹力,负离子受到竖直向上的洛伦兹力,则正电荷聚集在N一侧,负电荷聚集在M一侧,则M点的电势低于N点的电势,A、B、C错误;正负离子达到稳定状态时,有qnB∠q,可得流话B,流量Q=S=md,Um,D正确U4Bd4B

4.c【解析】本题考查理想气体状态方稈、热力学第一定律。C→A过程气体体积减小,外界对气体做正功,气体发生等温变化,即ΔU=0,内能不变,故A错误;A→B过程气体体积增加,气体对外做功,做功的大小等于A→B的图线与体积轴所围成的面积,B→C过程是等容变化,气体不做功,C→A过程是等温过程,外界对气体做功,其做功的大小等于C-图线与体积轴所围成的面积,A→B和C→A图线与体积轴所围的面积不相等,气体对外做的功大于外界对气体做功,故整个循环过程中气体对外做功,故B错误:A→B过程是绝热过程,气体对外做功,则W<0,Q=0,根据热力学第定律△U=W+Q,可得△U<0,则内能减小,故C正确;B→C过程是等容过程,外界对气体不做功,气体压强降低,由C得气体温度降低,则气体的内能减小,故D错误。