1.单选题- (共5题)

A.物块和木板间的动摩擦因数为0.5 |
B.倾角α为30°时物体静止在斜面上 |
C.木板的倾角α为45°时物块所受摩擦力等于重力 |
D.木板的倾角α为45°时物块所受摩擦力为静摩擦力 |

A.两物体在t=5 s时相遇 | B.两物体相遇时的速度大小为25 m/s |
C.t=0时刻,B物体在A物体前20 m处 | D.两物体在前4 s内的平均速度相同 |

A.水平横杆对质量为M的小球的支持力为Mg+mg
B.连接质量为m小球的轻弹簧的弹力为

C.连接质量为m小球的轻弹簧的伸长量为

D.套在水平光滑横杆上的轻弹簧的形变量为


A.![]() | B.![]() | C.![]() | D.![]() |
2.选择题- (共3题)
假定英语课上老师要求同桌之间交换修改作文,请你修改同桌写的以下作文,文中共有10处语言错误,每句中最多有两处,错误涉及一个单词的增加、删除或修改。 增加:在缺词处加一个漏字符号(∧),并在此符号下面写出该加的词。 删除:把多余的词用斜线(﹨)划掉。 修改:在错的词下画一横线,并在该词下面写出修改后的词。
注意: 1).每处错误及其修改均仅限一词;
2).只允许修改10处,多者(从第11处起)不计分。
Boys and girls,
May I have your attention, please?
There will a lecture in our library, at 4:00 on Wednesday afternoon. We are very honour to have invited Professor Tang Wenfang, who has been studied cultural differences in Tsinghua University for many years, in talk about the differences between American and Chinese cultures, that may be quite an interested topic. After a lecture, you are welcome to share your experience in China with everyone else present. Since you have stayed in China for half a year, because you have anything that what puzzles you, it would be great to talk with Mr.Tang. He will be glad to communicate with you. Please be present on time.
That's all. Thank you.
假定英语课上老师要求同桌之间交换修改作文,请你修改同桌写的以下作文,文中共有10处语言错误,每句中最多有两处,错误涉及一个单词的增加、删除或修改。 增加:在缺词处加一个漏字符号(∧),并在此符号下面写出该加的词。 删除:把多余的词用斜线(﹨)划掉。 修改:在错的词下画一横线,并在该词下面写出修改后的词。
注意: 1).每处错误及其修改均仅限一词;
2).只允许修改10处,多者(从第11处起)不计分。
Boys and girls,
May I have your attention, please?
There will a lecture in our library, at 4:00 on Wednesday afternoon. We are very honour to have invited Professor Tang Wenfang, who has been studied cultural differences in Tsinghua University for many years, in talk about the differences between American and Chinese cultures, that may be quite an interested topic. After a lecture, you are welcome to share your experience in China with everyone else present. Since you have stayed in China for half a year, because you have anything that what puzzles you, it would be great to talk with Mr.Tang. He will be glad to communicate with you. Please be present on time.
That's all. Thank you.
假定英语课上老师要求同桌之间交换修改作文,请你修改同桌写的以下作文,文中共有10处语言错误,每句中最多有两处,错误涉及一个单词的增加、删除或修改。 增加:在缺词处加一个漏字符号(∧),并在此符号下面写出该加的词。 删除:把多余的词用斜线(﹨)划掉。 修改:在错的词下画一横线,并在该词下面写出修改后的词。
注意: 1).每处错误及其修改均仅限一词;
2).只允许修改10处,多者(从第11处起)不计分。
Boys and girls,
May I have your attention, please?
There will a lecture in our library, at 4:00 on Wednesday afternoon. We are very honour to have invited Professor Tang Wenfang, who has been studied cultural differences in Tsinghua University for many years, in talk about the differences between American and Chinese cultures, that may be quite an interested topic. After a lecture, you are welcome to share your experience in China with everyone else present. Since you have stayed in China for half a year, because you have anything that what puzzles you, it would be great to talk with Mr.Tang. He will be glad to communicate with you. Please be present on time.
That's all. Thank you.
3.多选题- (共3题)

A.小球A落地时间为9 s |
B.物块B运动时间为3 s |
C.物块B运动12.5 m后停止 |
D.A球落地时,A、B相距17.5 m |
A.过程1和过程2动量的变化大小都为mv0 |
B.过程1和过程2动量变化的方向相反 |
C.过程1重力的冲量为mv0,且方向竖直向下 |
D.过程1和过程2重力的总冲量为0 |

A. 绳的右端上移到b′,绳子拉力不变
B. 将杆N向右移一些,绳子拉力变大
C. 绳的两端高度差越小,绳子拉力越小
D. 若换挂质量更大的衣服,则衣架悬挂点右移
4.填空题- (共1题)
A.光具有波粒二象性 |
B.光在同一种介质中沿直线传播 |
C.用光导纤维束传输图象信息利用了光的全反射 |
D.让蓝光和绿光通过同一双缝干涉装置,形成的干涉条纹间距较大的是绿光 |
E.围绕振动的音叉转一圈会听到忽强忽弱的声音是多普勒效应 |
5.解答题- (共2题)

(1)物体与斜面间的动摩擦因数;
(2)拉力F的大小;
(3)t=4 s时物体的速度.




(i)求细光束在底边BC的入射角i;
(ii)求该细光束从O点射入玻璃砖到第一次射到AB边所需的时间.
6.实验题- (共2题)
(1)电火花打点计时器是一种使用________(选填“交流”或“直流”)电源的计时仪器,它的工作电压是220V,当电源的频率为50 Hz时,它每隔________s打一次点.

(2)实验中该同学从打出的若干纸带中选取一条纸带,如图所示,图中A、B、C、D、E为相邻的计数点,每相邻的两个计数点之间还有4个点没有画出,A点纸带运动的瞬时速度是________m/s,小车的加速度是________m/s2(以上两空保留两位小数)。

a.将橡皮筋上端固定,使其自然下垂,测出此时橡皮筋的长度L0;
b.在橡皮筋的下端分别挂1个钩码、2个钩码、3个钩码、…,对应的橡皮筋的长度分别记为L1、L2、L3、…
该实验小组测量的数据如下表所示:(每个钩码的质量为50 g,重力加速度g取9.8 m/s2)
钩码个数n | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
橡皮筋长度L/cm | 20.00 | 22.40 | 24.85 | 27.35 | 29.83 | 32.18 | 34.65 | 37.15 |
(1)为了充分利用数据,该小组将测量的数据逐一求差,d1=L4-L0=9.83 cm,d2=L5-L1=9.78 cm,d3=L6-L2=9.80 cm,d4=L7-L3=9.80 cm。根据所得的差值,可以计算出每增加一个钩码时橡皮筋的平均伸长量



(2)该小组进一步查阅资料发现,杨氏弹性模量Y也是表征固体材料性质的一个重要物理量。已知固体材料所受到的拉力F与其截面积S之比称为该固体材料的应力,固体材料的伸长量x与其原长L0之比称为该固体材料的应变,应力与应变的比值称为该材料的杨氏弹性模量。根据胡克定律和杨氏弹性模量的定义,可得出杨氏弹性模量Y与劲度系数k之间的关系式为Y=____。
(3)若该小组在实验中使用的是横截面为圆形的橡皮筋,用螺旋测微器测得的橡皮筋横截面的直径d如图乙所示,则d=____mm。

-
【1】题量占比
单选题:(5道)
选择题:(3道)
多选题:(3道)
填空题:(1道)
解答题:(2道)
实验题:(2道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:4
7星难题:0
8星难题:8
9星难题:1