初中物理作图题专题训练(三)

流年似水

<div><strong>中考物理作图知识考点:</strong><br>1、会画简单的光路图</div><div>2、会画简单的电路图</div><div>3、会连接简单的串联电路和并联电路<br>4、会画力的力臂<br>5、会用力的示意图描述力</div><div>6、会组装简单的滑轮组(绕线)<br>7、会判断通电螺线管的N、S极、电源的正、负极或磁体(小磁针)的N、S极<br>8、会画磁体外围的磁感线或标出磁体的磁场方向</div><div>9、光学暗盒问题<font color="#000000" face="宋体" size="3"> </font><p style="background: white; margin: 0cm 0cm 0pt; mso-pagination: widow-orphan;"><strong><span lang="EN-US" style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">1.</span><span style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">如图所示,弹簧测力计下悬挂一条形磁体,当开关闭合,弹簧测力计示数变小。请标出电磁铁的<span lang="EN-US">S</span>极和用“<span lang="EN-US">+</span>”标出电源的正极。</span></strong></p><font color="#000000" face="宋体" size="3"> </font></div> <span lang="EN-US" style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">2.</span><span style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">请在图中用笔画线代替导线将电灯、开关和插座正确接入家庭电路。</span><span lang="EN-US" style='color: rgb(51, 51, 51); letter-spacing: 0.35pt; font-family: "Microsoft YaHei UI","sans-serif"; font-size: 9pt; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;'><br style="mso-special-character: line-break;"> </span> <font color="#000000" face="宋体" size="3"> </font><p style="background: white; margin: 0cm 0cm 0pt; mso-pagination: widow-orphan;"><span lang="EN-US" style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">3.</span><span style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">投影仪灯泡功率很大,所以需要风扇散热,使用后,应先关闭灯泡<span lang="EN-US">L</span>,再关闭风扇<span lang="EN-US">M</span>;请用笔画线表示导线在如图中把电路连接完整,要求实现:先断开开关<span lang="EN-US">S<sub><font size="1">1</font></sub></span>,灯泡熄灭,风扇继续转动,再断开开关<span lang="EN-US">S<sub><font size="1">2</font></sub></span>,风扇才停止转动:若只闭合开关<span lang="EN-US">S<sub><font size="1">1</font></sub></span>,灯泡不亮。</span></p><font color="#000000" face="宋体" size="3"> </font> <span lang="EN-US" style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">4.</span><span style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">有一个正负极标示不清的电源,为了分清正负极,某回学自制了一个螺线管,将其悬挂起来并使其在水平面内能自由转动。用该电源给螺线管通电,螺线管静止时<span lang="EN-US">A</span>端指向北方(如图),请在图中标出电源的正负极。</span> <font color="#000000" face="宋体" size="3"> </font><p style="background: white; margin: 0cm 0cm 0pt; mso-pagination: widow-orphan;"><span lang="EN-US" style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">5.</span><span style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">根据图中小磁针的指向标出电源的“<span lang="EN-US">+</span>”、“﹣”极。</span></p><font color="#000000" face="宋体" size="3"> </font> <font color="#000000" face="宋体" size="3"> </font><p style="background: white; margin: 0cm 0cm 0pt; mso-pagination: widow-orphan;"><span lang="EN-US" style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">6.</span><span style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">如图所示,小磁针静止时,标出电源的“<span lang="EN-US">+</span>”、“﹣”极及小磁针的<span lang="EN-US">N</span>极。</span></p><font color="#000000" face="宋体" size="3"> </font> <span lang="EN-US" style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">7.</span><span style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">根据图中通电螺线管的<span lang="EN-US">N</span>极。请标出小磁针的<span lang="EN-US">N</span>极端,并在电源处标出正、负极符号。</span> <span lang="EN-US" style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">8.</span><span style="color: rgb(51, 51, 51); letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">按要求作图:如图,当开关闭合后,请标出小磁针的<span lang="EN-US">N</span>和<span lang="EN-US">S</span>极。<span lang="EN-US"><br style="mso-special-character: line-break;"> </span></span> <font color="#000000" face="宋体" size="3"> </font><p style="background: white; margin: 0cm 0cm 0pt; mso-pagination: widow-orphan;"><span lang="EN-US" style="color: black; letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">9.</span><span style="color: black; letter-spacing: 0.7pt; font-family: 宋体; font-size: 9pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;">根据通电螺线管的<span lang="EN-US">N</span>、<span lang="EN-US">S</span>极和磁感线形状,在图中标出磁体<span lang="EN-US">A</span>的<span lang="EN-US">N</span>极,磁感线方向(任选一根标出即可)和电源“<span lang="EN-US">+</span>”、“<span lang="EN-US">-</span>”极。</span></p><font color="#000000" face="宋体" size="3"> </font> <font color="#000000" face="宋体" size="3"> </font><p align="left" style="margin: 0cm 0cm 0pt; text-align: left; text-indent: 20.25pt; tab-stops: 114.0pt center 207.65pt;"><b style="mso-bidi-font-weight: normal;"><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;"><font color="#000000">温馨提示:孩子马上面临中考,但是学习吃力、成绩下降、听不懂、学不会、跟不上……怎么办?</font></span></b></p><font color="#000000" face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt;"><font color="#000000"><span lang="EN-US" style="font-size: 9pt;"><span style="mso-spacerun: yes;"><font face="Calibri"> </font></span></span><b style="mso-bidi-font-weight: normal;"><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;">九年级全日制中考班,从基础抓起,由浅入深,循序渐进,哪部分弱强化补哪里,打牢基础,逐步提升!</span></b></font></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="margin: 0cm 0cm 0pt; text-align: left; tab-stops: 114.0pt center 207.65pt;"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US" style="font-size: 9pt;"><font face="Calibri"><span style="mso-spacerun: yes;"><font color="#000000"> </font></span><font color="#000000">2021</font></font></span></b><b style="mso-bidi-font-weight: normal;"><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;"><font color="#000000">年中考全日制班已经开始,设置精英班、培优班和提升班。通过对孩子学情的科学分析,全面剖析学生优势学科和弱势学科,现实优势互补,建立上进型学习模式,找出学生学习短板,传授高效学习方法,查漏补去,个性化教学,全面提升,决胜中考。</font></span></b></p><font color="#000000" face="宋体" size="3"> </font> <font color="#000000" face="宋体" size="3"> </font><p align="left" style="margin: 0cm 0cm 0pt; text-align: left; tab-stops: 114.0pt center 207.65pt;"><b style="mso-bidi-font-weight: normal;"><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;"><font color="#000000">教学特点:</font></span></b></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="margin: 0cm 0cm 0pt; text-align: left; tab-stops: 114.0pt center 207.65pt;"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US" style="font-size: 9pt;"><font face="Calibri"><span style="mso-spacerun: yes;"><font color="#000000"> </font></span><font color="#000000">1</font></font></span></b><font color="#000000"><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;">.采用“名师授课</span><span lang="EN-US" style="font-size: 9pt;"><font face="Calibri">+</font></span><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;">个性化辅导”的教学模式,名师由浅入深,逐条讲解,学生容易吸收;助教老师全程陪读,多对一辅导管理;</span></font></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="margin: 0cm 0cm 0pt; text-align: left; text-indent: 18pt; tab-stops: 114.0pt center 207.65pt; mso-char-indent-count: 2.0;"><font color="#000000"><span lang="EN-US" style="font-size: 9pt;"><font face="Calibri">2.</font></span><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;">把握学生学习弱点,针对学生学习习惯和学习方法,进行精确化同步辅导;</span></font></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="margin: 0cm 0cm 0pt; text-align: left; text-indent: 18pt; tab-stops: 114.0pt center 207.65pt; mso-char-indent-count: 2.0;"><font color="#000000"><span lang="EN-US" style="font-size: 9pt;"><font face="Calibri">3.</font></span><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;">实行“日清</span><span lang="EN-US" style="font-size: 9pt;"><font face="Calibri">+</font></span><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;">周测</span><span lang="EN-US" style="font-size: 9pt;"><font face="Calibri">+</font></span><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;">月考”的形式,及时跟踪学生的学习效果;</span><span lang="EN-US" style="font-size: 9pt;"><span style="mso-spacerun: yes;"><font face="Calibri"> </font></span></span></font></p><font color="#000000" face="宋体" size="3"> </font> <font color="#000000" face="宋体" size="3"> </font><p align="left" style="margin: 0cm 0cm 0pt; text-align: left; tab-stops: 114.0pt center 207.65pt;"><b style="mso-bidi-font-weight: normal;"><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;"><font color="#000000">日常管理:</font></span></b></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="margin: 0cm 0cm 0pt; text-align: left; text-indent: 20.25pt; tab-stops: 114.0pt center 207.65pt;"><font color="#000000"><font face="Calibri"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US" style="font-size: 9pt;">1</span></b><span lang="EN-US" style="font-size: 9pt;">.</span></font><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;">实行全封闭管理模式,小班授课,保障学习效果;</span></font></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="margin: 0cm 0cm 0pt; text-align: left; text-indent: 20.25pt; tab-stops: 114.0pt center 207.65pt;"><font color="#000000"><span lang="EN-US" style="font-size: 9pt;"><font face="Calibri">2.</font></span><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;">班主任</span><span lang="EN-US" style="font-size: 9pt;"><font face="Calibri">+</font></span><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;">助教老师全程跟踪学习过程;</span></font></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="margin: 0cm 0cm 0pt; text-align: left; text-indent: 20.25pt; tab-stops: 114.0pt center 207.65pt;"><font color="#000000"><span lang="EN-US" style="font-size: 9pt;"><font face="Calibri">3.</font></span><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;">必须遵守《班级管理规定》和《住宿管理规定》;</span></font></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="margin: 0cm 0cm 0pt; text-align: left; text-indent: 20.25pt; tab-stops: 114.0pt center 207.65pt;"><font color="#000000"><span lang="EN-US" style="font-size: 9pt;"><font face="Calibri">4.</font></span><span style="font-family: 宋体; font-size: 9pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri;">每生一个学习交流群,老师反馈学生学习情况,家长随时了解互动,齐心协力共助孩子中考圆梦。</span></font></p><font color="#000000" face="宋体" size="3"> </font><b style="mso-bidi-font-weight: normal;"><span style='font-family: 宋体; font-size: 9pt; mso-bidi-font-family: "Times New Roman"; mso-font-kerning: 1.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;'><font color="#000000">早开始,早提升!中考全日制提升学习,让您的孩子奋力一搏!</font></span></b> <font color="#000000" face="宋体" size="3"> </font><p align="left" style="background: white; margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan; mso-outline-level: 6;"><b><span style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 11.0pt;'>王老师 </span></b></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="background: white; margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan; mso-outline-level: 6;"><span lang="EN-US" style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;'> </span><span style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;'>中学语文老师,资深教育咨询师,主要从事小、初、高孩子的学业规划,专业的学情分析、学能诊断;帮助孩子掌握正确的学习方法,激发孩子的学习潜能;为孩子制定个性化的辅导计划与方案;为家长提供家庭教育指导服务。</span></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="background: white; margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan; mso-outline-level: 6;"><span lang="EN-US" style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;'> </span><span style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;'>提前预约,可为孩子提供免费的学情分析;预约电话:<span lang="EN-US">13693875016</span></span></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="background: white; margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan; mso-outline-level: 6;"><span lang="EN-US" style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;'>18837756919</span><span style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt;'>(微信同号)</span></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="background: white; margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan; mso-outline-level: 6;"><b><span style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 11.0pt;'>辅导班项目:</span></b></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="background: white; margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan; mso-outline-level: 6;"><b><span lang="EN-US" style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 11.0pt;'> 1.</span></b><b><span style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 11.0pt;'>小学、初中、高中同步辅导;</span></b></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="background: white; margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan; mso-outline-level: 6;"><b><span lang="EN-US" style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 11.0pt;'> 2.</span></b><b><span style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 11.0pt;'>小初高一对一个性化辅导;</span></b></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="background: white; margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan; mso-outline-level: 6;"><b><span lang="EN-US" style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 11.0pt;'> 3.</span></b><b><span style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 11.0pt;'>中考全日制精英班、提高班、冲刺班;</span></b></p><font color="#000000" face="宋体" size="3"> </font><p align="left" style="background: white; margin: 0cm 0cm 0pt; text-align: left; mso-pagination: widow-orphan; mso-outline-level: 6;"><b><span lang="EN-US" style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 11.0pt;'> 4.</span></b><b><span style='color: rgb(39, 45, 52); font-family: "微软雅黑","sans-serif"; font-size: 10pt; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 11.0pt;'>高中小班辅导;</span></b></p><font color="#000000" face="宋体" size="3"> </font>

标出

中考

学习

螺线管

电源

辅导

磁针

正负极

开关

磁体