{"show":[{"id":2120,"catid":"42655,56297,6459,16839,11986,83800,93166","title":"熔点和凝固点","subtitle":"熔点和凝固点","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/physics/5.png","goals":null,"intro":"晶体熔化时的温度叫熔点。非晶体没有固定的熔点。液体凝固形成晶体时的温度叫凝固点。非晶体没有固定的凝固点。","ratingnum":0,"rating":0,"hits":440,"teachername":"王峰","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":6,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":385,"createdtime":1484026101,"updatedtime":1495423428},{"id":880,"catid":"42655,56297,6459,16839,11986,83800,93166","title":"熔化和凝固的温度—时间图象","subtitle":"熔化和凝固的温度—时间图象","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/physics/2.png","goals":null,"intro":"熔化和凝固的温度—时间图象是常考的图像观察题,看懂并理解晶体和非晶体熔化的温度—时间图像是非常重要的。","ratingnum":0,"rating":0,"hits":86,"teachername":"王峰","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":6,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":385,"createdtime":1477289873,"updatedtime":1495423424},{"id":881,"catid":"42655,56297,6459,16839,93166,11986,83800","title":"晶体和非晶体的区别","subtitle":"晶体和非晶体的区别","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/physics/2.png","goals":null,"intro":"除了有固定的熔点和凝固点外,晶体与非晶体还有哪些区别呢?","ratingnum":0,"rating":0,"hits":79,"teachername":"王峰","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":6,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":385,"createdtime":1477289917,"updatedtime":1495423420},{"id":882,"catid":"42655,56297,6461,16839,93166,11986,83800","title":"熔化吸热和凝固放热在生活中的应用","subtitle":"熔化吸热和凝固放热在生活中的应用","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/physics/5.png","goals":null,"intro":"晶体和非晶体在熔化过程中都要吸热,在凝固的过程中都要放热,依据这两个特点,我们可以在生活中做哪些具体的应用呢?","ratingnum":0,"rating":0,"hits":26,"teachername":"王峰","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":6,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":385,"createdtime":1477289934,"updatedtime":1495423415},{"id":883,"catid":"42655,56297,6459,16839,93166,11986,83800","title":"熔化和凝固的探究实验","subtitle":"熔化和凝固的探究实验","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/physics/3.png","goals":null,"intro":"1.探究石蜡熔化时的温度变化规律,探究石蜡凝固时的温度变化规律;2.探究海波熔化时的温度变化规律,探究海波凝固时的温度变化规律。","ratingnum":0,"rating":0,"hits":86,"teachername":"王峰","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":6,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":385,"createdtime":1477289951,"updatedtime":1495423241},{"id":887,"catid":"42655,56297,6459,16839,93166,11986,83800","title":"晶体的熔化和凝固图像","subtitle":"晶体的熔化和凝固图像","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/physics/1.png","goals":null,"intro":"晶体的熔化和凝固温度—时间图像是热学的重点内容,学会理解图像曲线的意义。","ratingnum":0,"rating":0,"hits":149,"teachername":"王峰","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":6,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":385,"createdtime":1477292147,"updatedtime":1495423232},{"id":888,"catid":"83802,42654,56298,16840,93167,11985,6459,6460,6461","title":"汽化及汽化吸热的特点","subtitle":"汽化及汽化吸热的特点","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/physics/3.png","goals":null,"intro":"什么是汽化?物质从液态变成气态的过程叫做汽化。汽化有蒸发和沸腾两种方式。","ratingnum":0,"rating":0,"hits":27,"teachername":"王峰","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":6,"nj":null,"ver":"12456","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":385,"createdtime":1477292190,"updatedtime":1495423226},{"id":889,"catid":"42654,56298,6459,16840,93167,11985","title":"沸腾及沸腾条件","subtitle":"沸腾及沸腾条件","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/physics/1.png","goals":null,"intro":"将液体加热到有大量气泡冒出,这种现象叫做沸腾。沸腾是液体内部和表面同时发生的剧烈汽化现象。","ratingnum":0,"rating":0,"hits":84,"teachername":"王峰","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":6,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":385,"createdtime":1477292206,"updatedtime":1495423220},{"id":890,"catid":"42654,56298,6459,16840,93167,11985,83802","title":"沸点及沸点与气压的关系","subtitle":"沸点及沸点与气压的关系","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/physics/3.png","goals":null,"intro":"各种液体沸腾时都有确定的温度,这个温度叫做沸点。不同的液体沸点不同。","ratingnum":0,"rating":0,"hits":28,"teachername":"王峰","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":6,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":385,"createdtime":1477292219,"updatedtime":1495423215},{"id":891,"catid":"42654,56298,6460,16840,93167,11985,83802","title":"蒸发及其现象","subtitle":"蒸发及其现象","status":4,"type":"normal","price":30,"serializemode":0,"lessonnum":0,"smallpicture":"/dist/images/defaultcover/physics/3.png","goals":null,"intro":"在任何温度下都能发生的汽化现象叫做蒸发。蒸发是发生在液体表面的缓慢汽化现象。","ratingnum":0,"rating":0,"hits":27,"teachername":"王峰","publisheruid":0,"uid":82,"xd":2,"deletedtime":null,"xk":6,"nj":null,"ver":"","locked":0,"grade":0,"stage":3,"comment":"","remark":"","recommend":0,"admin":385,"createdtime":1477292344,"updatedtime":1495423192}],"xdxk":{"2648":{"name":"小学数学","xd":1,"xk":3},"467":{"name":"初中数学","xd":2,"xk":3},"215":{"name":"初中英语","xd":2,"xk":4},"394":{"name":"初中科学","xd":2,"xk":5},"226":{"name":"初中物理","xd":2,"xk":6},"534":{"name":"初中化学","xd":2,"xk":7},"660":{"name":"初中历史与社会","xd":2,"xk":20}},"count":"517","catname":{"2120":"初中物理","880":"初中物理","881":"初中物理","882":"初中物理","883":"初中物理","887":"初中物理","888":"初中物理","889":"初中物理","890":"初中物理","891":"初中物理"},"ispay":{"2120":0,"880":0,"881":0,"882":0,"883":0,"887":0,"888":0,"889":0,"890":0,"891":0},"fmtime":{"2120":"2017-05-22 11:23","880":"2017-05-22 11:23","881":"2017-05-22 11:23","882":"2017-05-22 11:23","883":"2017-05-22 11:20","887":"2017-05-22 11:20","888":"2017-05-22 11:20","889":"2017-05-22 11:20","890":"2017-05-22 11:20","891":"2017-05-22 11:19"},"videonum":{"2120":1,"880":1,"881":1,"882":1,"883":1,"887":1,"888":1,"889":1,"890":1,"891":1},"pages":"
","page_items":"\n2/52"}