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物理碗2027历年真题:速度与加速度图怎样辨认

  • 2026-11-14 03:31:04
物理碗2027历年真题:速度与加速度图怎样辨认
物理碗2027历年真题
速度与加速度图怎样辨认
物理碗力学图像题是常见失分点。本文结合历年题目特征,拆解速度—时间图与加速度—时间图的辨认方法。
2027年大陆赛区将于3月16日开考,采用线下机考形式,参赛对象为9至12年级学生。D1组别考察第1至40题,D2组别考察第11至50题,时长均为45分钟。
翰林学员在往届物理碗竞赛中表现优异(历史展示)
本文将讲清图像题辨认方法与备考路径,相关资料按真实目录介绍
具体课程与资料信息可通过文末海报咨询顾问老师
继续了解备考安排
01 报名前必须核对的组别差异
物理碗报名截止未知,不可推算或套用美国AAPT时间。若所在学校是官方考点,可通过阿思丹平台自行报名或由校方统一组织;本校无法报名时,翰林提供协助报名服务。
D1与D2组别的核心区别在于学习年限匹配。D1覆盖第1至40题;D2覆盖第11至50题。建议根据当前物理课程进度选择组别,而非单纯依据年级。
2027年大陆赛区采用线下机考形式。考生需提前熟悉英文题干表述,避免因语言理解偏差导致非知识性失分。
2027物理碗报名及考试安排参考
扫码添加顾问老师,获取报名渠道咨询!
02 历年真题中的图像题练习思路
在物理碗历年真题中,运动学图像是高频考点。常见组合包括v-t图、a-t图以及两者的相互转换。这类题目的难点不在于计算量,而在于对图像斜率、面积与截距物理意义的即时反应。
以速度—时间图为例,斜率代表加速度,曲线下方与时间轴围成的面积代表位移。当v-t图为直线时,加速度恒定;为曲线时,瞬时加速度等于该点切线斜率。许多考生在D2组别中因忽略“正负号方向”而丢分。
加速度—时间图则相反,面积代表速度变化量。判断物体何时回到出发点、何时速度最大,都需要从a-t图中提取累积效应。建议练习时先不看答案,独立画出对应的v-t草图再比对,强化图像间的转换直觉。
物理碗历年真题资料包(含解析)
扫码添加顾问老师,获取真题资料详情!
03 冲刺阶段的热学与电路自测重点
除力学外,热学自测是冲刺期另一关键模块。物理碗常考理想气体状态方程与热力学第一定律的组合应用,尤其是等压、等容、绝热过程在P-V图中的面积含义。建议提前练习P-V图分析题,熟悉面积与做功的对应关系。
电路分析在D2组别中较为常见,涵盖串并联等效电阻、基尔霍夫定律及电容充放电图像。辨认RC电路中电流随时间的指数衰减曲线,本质上仍是图像思维的应用——横轴为时间,纵轴为电量或电压,斜率对应电流大小。
翰林物理碗全程班50小时目前已开课;冲刺班20小时将于2027年1月3日开课。两类班型课时与定位不同,需根据自身基础选择衔接方式。
翰林物理竞赛秋季班课程安排参考
扫码添加顾问老师,获取班型匹配建议!
04 讲义中的误差分析与数量级估算
在物理碗历年真题中,误差分析与数量级估算常作为解题辅助环节出现。例如在测量重力加速度的实验题中,系统误差与随机误差的区分、有效数字的保留规则,都可能直接影响选项判断。建议平时练习时留意题目对近似处理的要求。
翰林编写的D1/D2配套讲义可供备考参考。使用讲义时,建议配合历年真题逐题标注涉及的图像类型,建立个人错题索引,将散落在各知识点中的方法集中复习。
体验课主题为Dynamics力学,由陆老师授课。陆老师拥有英国G5伦敦大学学院天体物理学硕士学位、厦门大学天文学学士学位,具备7年国际教育培训经历。原价999元现仅需9.9元,适合希望先验证自身图像基础的考生。
物理碗D1/D2配套讲义
扫码添加顾问老师,获取讲义内容介绍!
常见问题解答
Q:v-t图中曲线穿过时间轴意味着什么?
A:表示速度方向发生反转。曲线在时间轴上方为正方向运动,下方为负方向运动,穿过零点的瞬间速度为零但加速度不一定为零。
Q:D1和D2哪个更看重图像题?
A:两个组别均考查图像,但D2的题目往往需要同时处理v-t与a-t的对应关系,或结合能量守恒进行多步推断,复杂度更高。
Q:没有学过AP物理能否参加物理碗?
A:可以。参赛对象为9至12年级学生,具体知识准备程度因人而异。建议通过自学讲义或全程班补足经典力学、热学与电磁学等核心板块框架。
预约9.9元物理碗力学体验课
扫描下方海报内嵌码,锁定体验课席位
立即预约体验课
#物理碗 #物理碗报名 #物理碗真题 #速度时间图 #加速度图像 #翰林国际教育
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  140. /www/wwwroot/www.sjds.net/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000745s ] mysql:host=172.18.0.4;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000938s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000481s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000473s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000804s ]
  6. SELECT * FROM `set` [ RunTime:0.000422s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000883s ]
  8. SELECT * FROM `article` WHERE `id` = 546794 LIMIT 1 [ RunTime:0.000516s ]
  9. UPDATE `article` SET `lasttime` = 1794630611 WHERE `id` = 546794 [ RunTime:0.011607s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000657s ]
  11. SELECT * FROM `article` WHERE `id` < 546794 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000674s ]
  12. SELECT * FROM `article` WHERE `id` > 546794 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000561s ]
  13. SELECT * FROM `article` WHERE `id` < 546794 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001059s ]
  14. SELECT * FROM `article` WHERE `id` < 546794 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001057s ]
  15. SELECT * FROM `article` WHERE `id` < 546794 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001077s ]
0.143848s