第一章 测量专题(答案版)(科学).pdf

七上科学测量专题提高检测 请同学们注意： 全卷共四大题，满分100 分，考试时间为60 分钟。 一、选择题(每题2 分，计40 分) 1.下列说法中正确是·······································································································( ) A. 多次测量求平均值可以减小因测量工具不精确而产生的误差 B. 测量时选用的工具越精密越好 C. 学生用钢尺的最大测量长度为15 厘米，因此无法用它来测量长度约为50 厘米的课桌的宽度 D. 测量长度时，也可以使用零刻度线磨损的尺子 2.一般家用热水壶的容积大约为·····················································································( ) A. 20 立方米 B. 0.2 立方米 C. 2 立方分米 D. 0.2 立方分米 3.以下说法中，你认为最符合实际的是··········································································( ) A. 人体的正常体温为35℃ B. 冰箱冷冻室的温度约为5℃ C. 浙江杭州盛夏中午室外温度可达38℃ D. 浙江杭州的最低气温可达零下30℃ 4.下列有关误差的说法中，正确的是··············································································( ) A. 多次测量取平均值可以减小误差 B. 误差就是测量中产生的错误 C. 只要认真测量，就可以避免误差 D. 选用精密的测量仪器可以消除误差 5.使用量筒测量体积时，下列有关说法错误的是····························································( ) A. 要把量筒放在水平的桌面上 B. 要搞清量筒的测量范围和最小刻度 C. 量筒只能测液体体积不能测固体体积 D. 液面在量筒内呈凹形时，视线要与凹形液面中央最低处相平 6.一间教室的体积大约是································································································( ) A. 200 米3 B. 200 千米3 C. 200 分米3 D. 200 厘米3 7.用较厚的刻度尺测量一物体长度，如图，正确的是····················································( ) 8.一次国王故意为难阿凡提，他在众臣面前一定要让阿凡提说出眼前池塘里的水有多少桶，阿凡提略 加思索后回答：若桶像池塘一样大的话，池塘里的水就只有一桶；若桶象池塘的十分之一大的话， 池塘里的水就有十桶；若……这则故事说明了·························································( ) A. 测量总是有误差的 B. 测量所能达到的准确程度由刻度尺的最小刻度决定 C. 测量工具的大小决定了物体的大小 D. 测量前应该选择合适的测量工具 9.我国对纳米技术的研究已经跻身世界前列，长度为1.76×10nm的物体可能是·········( ) 9 A. 一个人的高度 B. 物理课本的长度 C. 一座山的高度 D. 一个篮球场的长度 10.用量筒测量液体体积时,小明采用俯视读数法，读出液体的体积35毫升，则此液体的真实体积将 比35毫升······································································································