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1、ideological and theoretical qualities and practical working ability, and strive to build a contingent of league cadres with positive work style and high quality. Hold a regular meeting of the party secretary every fortnightly, arrange the work of the regiment, feedback the student information. Focus
2、 on training junior high school, junior high school secretary of the regiment branch to enable them to raise A firm political conviction, diligent and diligent learning spirit and practical and innovative work style.作图练习1、图1中的电路错误是 ,在错误处打叉,再添加一根导线,使两灯并联连接。2、在图2所示的电路中,有两根导线尚未连接,请用笔画线代替导线补上。要求:闭合电键S后,
3、滑动变阻器的滑片P向左移动时,电压表V的示数变小,小灯L变亮。3、在图3所示的电路中,有两根导线尚未连接,请用笔画线代替导线补上。补上后要求闭合电键S,向右端移动滑动变阻器的滑片P,小灯变亮,电压表示数不变。图1图3S 3 15VPL图2 4、在图4所示的电路中,有两根导线尚未连接,请以笔画线代替导线补上。要求:闭合电键,电路各元件均能正常工作,且当变阻器的滑片向左移动时,电压表的示数变大。 5、在图5中根据标出的电流方向,从电池组、电流表、电压表三个元件符号中选出两个,并分别填入电路的空缺处。填入后要求:小灯泡L1和L2串联连接;小灯泡L1和L2都能发光。6、在图6所示的电路中,以笔线代替导
4、线,补两根导线使两灯并联,电键S同时控制两盏灯,电流表只测通过灯L1中的电流。SLV 3 15RL2SL1SL1L2SL1L2 图4 图5 图67、电表的填写思路:(1)若一个电表直接接在电源的两极上,则该表一定是 表。(2)若电流要流过一个表回负极、或再通过一个用电器,则该表一定是 表。(3)若表的两端分别用导线直接接在了某电阻两端,则该表是 表。(4)填完后一定看电流的流向是否合理,是否有局部短路,方法是找到电流的分支点和会合点,看两点是否有导线直接连接,若有则是 ,填表有错。8、在图8中,有一根导线没有接上,请用笔线代替导线补上。补上后的要求:滑动变阻器滑片向右移动时,电压表示数变大。图
5、9A B图89图9中的电路连线中缺两根导线,请用笔线代替导线补上,且满足当滑动变阻器的滑片向右移动时电流表的读数变大,电压表的读数变小。10在图10所示的电路中,有两根导线未连接,请用笔线代替导线补上,补上后要求:图13图12电键闭合后,当滑动变阻器的滑片自中点向右移动时,电流表的读数变小,灯的亮度不变。图10图1111在图11中连接两条导线,使电流表测L1的电流,电键控制两只灯。12在如图14所示的电路中,有一根导线尚未连接,请用笔线代替导线补上。补上后要求:闭合电键S,当滑动变阻器的滑片向右移动时,电流表的示数逐渐变小。13在如图15所示的电路中,有一根导线尚未连接,请用笔线代替导线补上。
6、补上后要求:闭合电键S,当滑动变阻器的滑片向右移动时,电流表的示数不变。14在图14中,将重为8牛的物体放在斜面上,对斜面的压力为7牛,请用力的图示法画出物体对斜面的压力F。15在图15中的里填上适当的电表符号,闭合电键S,使灯泡L1和L2能同时发光。- 3 15V- 0.6 3A16在图16中,有两根导线尚未接入电路,请用笔画线代替导线补上。补上后要求:闭合电键,当滑动变阻的滑片P向右移,电压表变大。SL1L2图14 图15 图1617图17中,重为4牛的小球漂浮在水面上,用力的图示法画出小球所受的浮力F浮。18在图18所示的电路中,有两根导线尚未连接,请用笔画线代替导线补上。补上后要求:闭
7、合电键S后,灯L1和L2都能发光,且电流表只测量通过灯L1的电流。 L1L2S 0.6 3A图17 图1819、在图19中的里填上适当的电表符号,要求电键闭合后两盏灯都能发光。20、在图20所示的电路中,有两根导线尚未连接,请用笔线代替导线连接电路,要求:L1和L2并联,电键S控制L1,电流表测干路的电流。并请标出电源的“+”、“-”。 图 19 图20A 0.6 3图L2L1SSL2L121、在图8中的里填上适当的电表符号,闭合电键S,使两只灯泡都能发光。22、重22牛的物体A静止在斜面上对斜面的压力为6牛,用力的图示法在图6中画出A物体对斜面的压力。23在图23所示电路的里填上适当的电表符
8、号,填上后要求灯L1和L2并联连接,且都能发光。S图21 图22 图2324、图24请根据所给的标度,用力的图示法在图10中画出重为6牛的物体对水平地面的压力。25、如图25所示电路里填上适当的电表符号,要求两灯串联。L1L2图252牛图24图9 图10 图11Strengthen the team connection, strengthen the knowledge education among the students (especially the first grade students), and promote the formation of good school spi
9、rit with the influence of the league members. All League branches should start with recommending outstanding students as the development objects of the League, take amateur league schools as the basis, conscientiously do a good job in the work of pre-league education, league membership education, Le
10、ague members vanguard exemplary consciousness education, excellent league members education, etc. Under the premise of ensuring the quality, the development quantity of league members will increase steadily, and the ranks of league members in middle schools will be strengthened constantly. It is pla
11、nned to develop a group of new league members in April and mid-October.2. Carry out the regular meeting system of the League branch, and strengthen the ideological accomplishment and the training work in the field of business. League cadres are the backbone of the work of the League, and their quality directly affects the quality of the work. Therefore, they plan to use their extracurricular activities on Wednesday to open special training and other forms of study activities. To help the regiment cadres improve their ideological quality and professional skills, improve their3
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