题目

阅读短文，判断句子的正（T）误（F）Last Sunday I had a wonderful day.I played basketball with my friends from nine o’clock to ten o’clock. After the games, I did my homework. I had lunch at twelve o’clock. After lunch, I had a rest. Then I cleaned the rooms and washed the clothes. At four, I went to visit my grandparents with my parents. We had a big dinner together. Then we went home at half past eight.【1】I played football last Sunday. （____）【2】I did my homework on Sunday morning. （____）【3】I did housework on Sunday afternoon. （____）【4】I didn’在“用单摆测定重力加速度”的实验中：（1）为使实验结果尽可能精确，下列器材中应选用    （用字母填入）A.1米长的细棉线                   B.20厘米长尼龙线C．塑料小球                         D．小铁球E．时钟                             F.0.1秒刻度的秒表G．最小刻度是毫米的刻度尺           H．最小刻度是厘米的刻度尺（2）实验时，摆线偏离竖直方向的偏角应小于    ，测量时，要让单摆在竖直平面内自由摆动几次后，从摆球经过    时开始计时．（3）某同学某次实验数据如下：细线长101.1厘米，摆球直径为1.8厘米，完成35次全振动的时间是70.80秒，由这些数据计算得重力加速度g=    ．