广东省东莞市213-2014学年高一物理上学期期末考试试题(A).doc

东莞市2013—2014学年第学期高一物理（A卷）一、单项选择题（本题共10小题，每小题3分，共30分二、双项选择题（本题共5小题，每小题4分，共20分三、实验与探究题（题，共18分） （1） ① 竖直 ；②4 ， 50；③10 , (每空2分) （2）① 0.1 s ② 0. m/s (每空2分) ③ 匀变速直线 ， 因为。 ④， 1.50 m/s2 (每空2分) 四、计算题：（本题3小题，共32分sin= GB 2分 解得GB = 6N2分 （2）根据力的平衡得关系式： cos= F2 ………………………2分 f大小与绳AC拉力大小相等 F2 = f 2分f = 8N 2分 18．(1分) （1）由牛顿运动定律：mg sin–N = ma (分) N – mg cos= 0 (1分) 解得：a = g sin–g cos= 2m/s2 (分) （2）由vc2 = 2as， (2分) 求出：vc = 2m/s (1分) （3）由牛顿运动定律： (1分) 由0 – vc2 = 2(–) (1分) 解得： = 2.0m (1分) 19：解（1）设飞行器在第一次飞行中的加速度为a 由匀变速直线运动规律有：h= 分 由牛顿第二定律有：F－mg－f=ma 2分 解得f=4N 1分 （2）设第二次飞行中，飞行器失去牵引力时的速度为v，失去牵引力之前上升的高度为由匀变速直线运动规律有：= 1分 设飞行器失去牵引力后的加速度为a，失去牵引力之后上升的高度为由牛顿第二定律有：mg+f=ma 2分 由匀变速直线运动规律有：v=at 1分 = 2分 飞行器能达到的最大高度= h1+ h2 = 42m 1分 including incentives) to ensure the achievement of the quality objectives. According to the companys quality system documents, combined with the specific circumstances of the project, preparation of project quality manual, procedures and work related to the project implementation rules to improve the quality management system of the project. A management review meeting held each year, on the implementation of the quality policy, objectives and review of the problems and propose corrective measures. Efforts and resources necessary for optimal allocation of project construction management (personnel, finance, facilities, information, etc). 3.2 with customer focus project staff establish a customer-focused thinking, fully aware that meet their customers needs and expectations is the fundamental pursuit of production and services projects. Projects in production and service processes, to: 3.2.1 identify and determine the needs and expectations of the project legal person, interests as the interests of t