2.大小:弹性势能的大小与 及 有关,弹簧的形变量越大,劲度系数越大,弹赞的弹性势能越 。
1.定义:物体由于发生 而具有的能叫弹性势能。
4.重力势能的变化与重力做功的关系
重力对物体做多少正功,物体的重力势能就多少;重力对物体做多少负功,物体的重力势能就多少.
重力对物体所做的功,等于物体 的减少量.
思考:重力做功有什么特点?
3.矢标性: ,但有正负,正负的意义是表示 。
2.表达式: ,单位: 。
1.概念:物体由于被举高而具有的能叫重力势能。
2010.9.13
2010.9.13
2010年高考文科外语机读卡选项情况
|
|
J1 |
J2 |
J3 |
J4 |
J5 |
J6 |
J7 |
J8 |
J9 |
J10 |
J11 |
J12 |
J13 |
J14 |
J15 |
J16 |
J17 |
J21 |
J22 |
|
选A占% |
1.33 |
1.73 |
67.02 |
68.25 |
14.83 |
4.87 |
3.16 |
79.73 |
88.95 |
23.22 |
54.23 |
7.91 |
12.13 |
19.68 |
8.15 |
82.41 |
15.32 |
5.47 |
8.64 |
|
选B占% |
3.71 |
1.94 |
22.64 |
21.32 |
53.83 |
89.35 |
2.05 |
10.49 |
5.22 |
2.93 |
32.75 |
81.51 |
45.11 |
9.03 |
75.04 |
9.28 |
65.82 |
8.85 |
39.32 |
|
选C占% |
92.26 |
93.63 |
7.61 |
7.67 |
28.59 |
3.01 |
92.05 |
7.00 |
3.11 |
71.10 |
10.28 |
7.86 |
40.02 |
68.54 |
14.02 |
5.58 |
16.13 |
36.94 |
5.24 |
|
选D占% |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
46.01 |
44.07 |
|
选其它占% |
2.71 |
2.71 |
2.73 |
2.75 |
2.76 |
2.77 |
2.74 |
2.78 |
2.72 |
2.75 |
2.75 |
2.72 |
2.74 |
2.76 |
2.80 |
2.73 |
2.73 |
2.72 |
2.72 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
J23 |
J24 |
J25 |
J26 |
J27 |
J28 |
J29 |
J30 |
J31 |
J32 |
J33 |
J34 |
J35 |
J36 |
J37 |
J38 |
J39 |
J40 |
J41 |
|
选A占% |
26.20 |
30.82 |
41.58 |
9.05 |
27.72 |
19.95 |
25.05 |
17.27 |
18.32 |
21.56 |
39.05 |
15.52 |
21.76 |
30.74 |
62.92 |
12.38 |
32.85 |
56.34 |
17.15 |
|
选B占% |
40.73 |
17.98 |
22.11 |
72.31 |
14.74 |
22.53 |
26.27 |
18.82 |
17.98 |
43.00 |
12.50 |
22.72 |
28.47 |
6.10 |
14.31 |
53.91 |
43.97 |
18.09 |
47.87 |
|
选C占% |
17.79 |
39.65 |
16.38 |
7.94 |
32.70 |
20.91 |
20.99 |
51.19 |
13.94 |
7.22 |
22.26 |
11.55 |
13.10 |
6.43 |
11.64 |
16.00 |
12.83 |
10.70 |
12.76 |
|
选D占% |
12.57 |
8.83 |
17.19 |
7.98 |
22.11 |
33.84 |
24.94 |
9.91 |
47.02 |
25.47 |
23.42 |
47.45 |
33.87 |
53.99 |
8.39 |
14.96 |
7.58 |
12.08 |
19.44 |
|
选其它占% |
2.72 |
2.72 |
2.73 |
2.72 |
2.73 |
2.77 |
2.76 |
2.82 |
2.74 |
2.75 |
2.76 |
2.76 |
2.79 |
2.74 |
2.74 |
2.74 |
2.77 |
2.79 |
2.78 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
J42 |
J43 |
J44 |
J45 |
J46 |
J47 |
J48 |
J49 |
J50 |
J51 |
J52 |
J53 |
J54 |
J55 |
J56 |
J57 |
J58 |
J59 |
J60 |
|
选A占% |
14.92 |
5.33 |
31.76 |
46.06 |
10.73 |
10.85 |
10.51 |
6.46 |
10.12 |
72.67 |
7.00 |
17.52 |
52.25 |
11.20 |
13.15 |
71.91 |
4.40 |
11.53 |
17.85 |
|
选B占% |
8.57 |
7.40 |
6.05 |
5.01 |
69.98 |
36.78 |
68.31 |
8.71 |
22.12 |
7.81 |
62.41 |
20.83 |
13.23 |
15.46 |
53.69 |
12.71 |
18.02 |
17.24 |
11.82 |
|
选C占% |
11.03 |
78.11 |
9.69 |
40.30 |
7.70 |
41.39 |
10.34 |
11.17 |
47.89 |
11.70 |
19.48 |
12.84 |
19.15 |
38.03 |
11.91 |
7.10 |
64.45 |
13.79 |
39.92 |
|
选D占% |
62.70 |
6.42 |
49.75 |
5.84 |
8.84 |
8.23 |
8.09 |
70.89 |
17.11 |
5.08 |
8.36 |
46.04 |
12.62 |
32.51 |
18.52 |
5.54 |
10.38 |
54.67 |
27.24 |
|
选其它占% |
2.77 |
2.73 |
2.76 |
2.78 |
2.75 |
2.75 |
2.75 |
2.76 |
2.76 |
2.74 |
2.75 |
2.78 |
2.75 |
2.79 |
2.74 |
2.74 |
2.75 |
2.78 |
3.16 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
J61 |
J62 |
J63 |
J64 |
J65 |
J66 |
J67 |
J68 |
J69 |
J70 |
J71 |
J72 |
J73 |
J74 |
J75 |
|
|
|
|
|
选A占% |
10.58 |
7.84 |
18.46 |
11.14 |
12.62 |
16.75 |
31.62 |
35.75 |
12.73 |
12.16 |
36.44 |
35.15 |
10.04 |
18.87 |
11.50 |
|
|
|
|
|
选B占% |
6.32 |
38.87 |
31.95 |
65.22 |
9.22 |
28.01 |
20.15 |
19.19 |
48.19 |
16.36 |
24.49 |
28.27 |
19.96 |
17.63 |
37.00 |
|
|
|
|
|
选C占% |
53.01 |
46.00 |
25.01 |
9.38 |
30.71 |
12.08 |
20.50 |
14.19 |
25.69 |
49.84 |
15.47 |
13.48 |
24.18 |
33.93 |
17.31 |
|
|
|
|
|
选D占% |
27.33 |
4.52 |
21.80 |
11.45 |
44.60 |
40.34 |
24.91 |
28.07 |
10.60 |
18.80 |
20.79 |
20.27 |
42.99 |
26.70 |
31.33 |
|
|
|
|
|
选其它占% |
2.76 |
2.77 |
2.78 |
2.82 |
2.85 |
2.82 |
2.82 |
2.79 |
2.79 |
2.84 |
2.80 |
2.83 |
2.84 |
2.87 |
2.86 |
|
|
|
|
注:考生人数 65956人;不计缺考和零分人数。
2010.9.13
2010年高考文科外语数据统计
|
小题数 |
J1 |
J2 |
J3 |
J4 |
J5 |
J6 |
J7 |
J8 |
J9 |
J10 |
J11 |
J12 |
J13 |
J14 |
J15 |
J16 |
J17 |
J21 |
J22 |
J23 |
|
小题满分 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1 |
1 |
1 |
|
平均分 |
1.38 |
1.40 |
1.01 |
1.02 |
0.81 |
1.34 |
1.38 |
1.20 |
1.33 |
1.07 |
0.81 |
1.22 |
0.68 |
1.03 |
1.13 |
1.24 |
0.99 |
0.46 |
0.44 |
0.41 |
|
难度系数 |
0.92 |
0.94 |
0.67 |
0.68 |
0.54 |
0.89 |
0.92 |
0.80 |
0.89 |
0.71 |
0.54 |
0.82 |
0.45 |
0.69 |
0.75 |
0.82 |
0.66 |
0.46 |
0.44 |
0.41 |
|
标准差 |
0.40 |
0.37 |
0.71 |
0.70 |
0.75 |
0.46 |
0.41 |
0.60 |
0.47 |
0.68 |
0.75 |
0.58 |
0.75 |
0.70 |
0.65 |
0.57 |
0.71 |
0.50 |
0.50 |
0.49 |
|
区分度 |
0.40 |
0.40 |
0.52 |
0.57 |
0.54 |
0.45 |
0.45 |
0.47 |
0.50 |
0.45 |
0.40 |
0.46 |
0.37 |
0.53 |
0.45 |
0.53 |
0.49 |
0.34 |
0.33 |
0.32 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
小题数 |
J24 |
J25 |
J26 |
J27 |
J28 |
J29 |
J30 |
J31 |
J32 |
J33 |
J34 |
J35 |
J36 |
J37 |
J38 |
J39 |
J40 |
J41 |
J42 |
J43 |
|
小题满分 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
|
平均分 |
0.40 |
0.42 |
0.72 |
0.22 |
0.21 |
0.25 |
0.51 |
0.47 |
0.43 |
0.39 |
0.47 |
0.28 |
0.81 |
0.94 |
0.81 |
0.19 |
0.85 |
0.72 |
0.94 |
1.17 |
|
难度系数 |
0.40 |
0.42 |
0.72 |
0.22 |
0.21 |
0.25 |
0.51 |
0.47 |
0.43 |
0.39 |
0.47 |
0.28 |
0.54 |
0.63 |
0.54 |
0.13 |
0.56 |
0.48 |
0.63 |
0.78 |
|
标准差 |
0.49 |
0.49 |
0.45 |
0.42 |
0.41 |
0.43 |
0.50 |
0.50 |
0.50 |
0.49 |
0.50 |
0.45 |
0.75 |
0.72 |
0.75 |
0.50 |
0.74 |
0.75 |
0.73 |
0.62 |
|
区分度 |
0.35 |
0.36 |
0.52 |
0.04 |
0.34 |
0.29 |
0.39 |
0.28 |
0.47 |
0.28 |
0.45 |
0.27 |
0.43 |
0.59 |
0.35 |
-0.07 |
0.51 |
0.44 |
0.51 |
0.54 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
小题数 |
J44 |
J45 |
J46 |
J47 |
J48 |
J49 |
J50 |
J51 |
J52 |
J53 |
J54 |
J55 |
J56 |
J57 |
J58 |
J59 |
J60 |
J61 |
J62 |
J63 |
|
小题满分 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
|
平均分 |
0.75 |
0.69 |
1.05 |
0.62 |
1.02 |
1.06 |
0.72 |
1.09 |
0.94 |
0.69 |
0.78 |
0.57 |
1.07 |
1.44 |
1.29 |
1.09 |
0.80 |
1.06 |
0.92 |
0.64 |
|
难度系数 |
0.50 |
0.46 |
0.70 |
0.41 |
0.68 |
0.71 |
0.48 |
0.73 |
0.62 |
0.46 |
0.52 |
0.38 |
0.54 |
0.72 |
0.64 |
0.55 |
0.40 |
0.53 |
0.46 |
0.32 |
|
标准差 |
0.75 |
0.75 |
0.69 |
0.74 |
0.70 |
0.68 |
0.75 |
0.67 |
0.73 |
0.75 |
0.75 |
0.73 |
1.00 |
0.90 |
0.96 |
1.00 |
0.98 |
1.00 |
1.00 |
0.93 |
|
区分度 |
0.42 |
0.39 |
0.54 |
0.19 |
0.62 |
0.62 |
0.43 |
0.58 |
0.55 |
0.47 |
0.53 |
0.42 |
0.49 |
0.66 |
0.34 |
0.41 |
0.41 |
0.46 |
0.49 |
0.32 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
小题数 |
J64 |
J65 |
J66 |
J67 |
J68 |
J69 |
J70 |
J71 |
J72 |
J73 |
J74 |
J75 |
T1 |
T2 |
T3 |
|
|
|
|
|
|
小题满分 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
4.5 |
10.0 |
25.0 |
|
|
|
|
|
|
平均分 |
1.30 |
0.89 |
0.81 |
0.63 |
0.72 |
0.51 |
1.00 |
0.73 |
0.41 |
0.40 |
0.38 |
0.74 |
1.51 |
2.85 |
12.21 |
|
|
|
|
|
|
难度系数 |
0.65 |
0.45 |
0.40 |
0.32 |
0.36 |
0.26 |
0.50 |
0.36 |
0.20 |
0.20 |
0.19 |
0.37 |
0.33 |
0.29 |
0.49 |
|
|
|
|
|
|
标准差 |
0.95 |
0.99 |
0.98 |
0.93 |
0.96 |
0.87 |
1.00 |
0.96 |
0.80 |
0.80 |
0.78 |
0.97 |
1.29 |
2.74 |
5.92 |
|
|
|
|
|
|
区分度 |
0.44 |
0.49 |
0.50 |
0.36 |
0.46 |
0.12 |
0.34 |
0.37 |
0.30 |
0.09 |
0.26 |
0.34 |
0.62 |
0.81 |
0.79 |
|
|
|
|
|
总平均分 74.93 最高分 145.0 信度 0.946 人数 65956 标准差 28.75
差生率 66.90% 及格率 33.10% 优生率 4.96% 满分 150.0
注:①90分以下为差生;90分(含)以上为及格;120分(含)以上为优生。②不计缺考和零分人数。
2010.9.13
2010年高考理科外语机读卡选项情况
|
|
J1 |
J2 |
J3 |
J4 |
J5 |
J6 |
J7 |
J8 |
J9 |
J10 |
J11 |
J12 |
J13 |
J14 |
J15 |
J16 |
J17 |
J21 |
J22 |
|
选A占% |
0.81 |
0.96 |
75.07 |
76.57 |
13.26 |
3.12 |
1.98 |
85.11 |
93.05 |
15.95 |
61.89 |
4.62 |
12.43 |
14.76 |
5.61 |
88.32 |
12.08 |
3.82 |
6.80 |
|
选B占% |
2.42 |
1.25 |
15.71 |
15.44 |
66.28 |
93.16 |
1.03 |
8.07 |
3.04 |
1.99 |
28.38 |
87.21 |
51.04 |
6.84 |
81.74 |
5.66 |
75.05 |
6.17 |
37.55 |
|
选C占% |
94.82 |
95.84 |
7.25 |
6.02 |
18.48 |
1.74 |
95.01 |
4.84 |
1.95 |
80.07 |
7.76 |
6.21 |
34.56 |
76.42 |
10.64 |
4.05 |
10.90 |
34.50 |
4.88 |
|
选D占% |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
53.54 |
48.80 |
|
选其它占% |
1.95 |
1.95 |
1.96 |
1.97 |
1.98 |
1.99 |
1.98 |
1.97 |
1.96 |
1.98 |
1.97 |
1.96 |
1.97 |
1.98 |
2.01 |
1.97 |
1.97 |
1.96 |
1.97 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
J23 |
J24 |
J25 |
J26 |
J27 |
J28 |
J29 |
J30 |
J31 |
J32 |
J33 |
J34 |
J35 |
J36 |
J37 |
J38 |
J39 |
J40 |
J41 |
|
选A占% |
24.29 |
25.57 |
51.34 |
7.09 |
32.09 |
21.32 |
30.12 |
15.00 |
17.30 |
14.07 |
43.33 |
14.25 |
19.97 |
28.32 |
72.57 |
10.95 |
28.99 |
64.79 |
12.69 |
|
选B占% |
47.38 |
14.42 |
20.56 |
79.88 |
10.85 |
19.10 |
26.57 |
14.14 |
17.87 |
53.20 |
9.13 |
18.86 |
35.89 |
3.59 |
11.06 |
59.72 |
50.09 |
14.61 |
56.04 |
|
选C占% |
16.85 |
51.33 |
13.41 |
4.95 |
30.85 |
29.17 |
17.66 |
60.08 |
11.06 |
5.07 |
19.95 |
7.88 |
11.15 |
3.42 |
8.82 |
14.56 |
13.35 |
9.09 |
9.44 |
|
选D占% |
9.52 |
6.72 |
12.72 |
6.12 |
24.25 |
28.43 |
23.66 |
8.76 |
51.78 |
25.68 |
25.60 |
57.02 |
30.98 |
62.70 |
5.59 |
12.79 |
5.58 |
9.51 |
19.82 |
|
选其它占% |
1.97 |
1.97 |
1.98 |
1.96 |
1.97 |
1.99 |
1.99 |
2.02 |
1.99 |
1.99 |
1.99 |
1.98 |
2.00 |
1.98 |
1.97 |
1.98 |
2.00 |
2.00 |
2.00 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
J42 |
J43 |
J44 |
J45 |
J46 |
J47 |
J48 |
J49 |
J50 |
J51 |
J52 |
J53 |
J54 |
J55 |
J56 |
J57 |
J58 |
J59 |
J60 |
|
选A占% |
12.81 |
3.95 |
28.66 |
50.54 |
8.71 |
8.79 |
7.33 |
4.07 |
7.54 |
81.96 |
4.44 |
14.29 |
62.01 |
10.35 |
8.75 |
82.09 |
2.74 |
11.19 |
17.22 |
|
选B占% |
5.09 |
5.00 |
3.70 |
3.03 |
77.75 |
38.62 |
78.73 |
5.80 |
17.78 |
4.98 |
71.82 |
16.05 |
11.29 |
14.93 |
61.11 |
7.87 |
16.81 |
14.53 |
12.43 |
|
选C占% |
8.15 |
84.69 |
6.83 |
40.22 |
4.82 |
43.46 |
6.60 |
7.27 |
56.39 |
7.81 |
16.03 |
10.20 |
16.06 |
46.68 |
10.05 |
4.70 |
69.55 |
11.48 |
45.10 |
|
选D占% |
71.95 |
4.39 |
58.83 |
4.21 |
6.75 |
7.14 |
5.36 |
80.88 |
16.31 |
3.28 |
5.74 |
57.46 |
8.65 |
26.03 |
18.11 |
3.37 |
8.90 |
60.79 |
22.96 |
|
选其它占% |
2.00 |
1.97 |
1.98 |
2.00 |
1.98 |
1.99 |
1.98 |
1.99 |
1.98 |
1.97 |
1.97 |
2.00 |
1.99 |
2.02 |
1.99 |
1.98 |
1.99 |
2.01 |
2.29 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
J61 |
J62 |
J63 |
J64 |
J65 |
J66 |
J67 |
J68 |
J69 |
J70 |
J71 |
J72 |
J73 |
J74 |
J75 |
|
|
|
|
|
选A占% |
9.40 |
5.96 |
17.73 |
9.98 |
9.53 |
13.95 |
39.94 |
45.87 |
9.31 |
11.56 |
42.27 |
33.86 |
9.20 |
22.08 |
10.35 |
|
|
|
|
|
选B占% |
3.92 |
32.64 |
38.84 |
72.16 |
6.90 |
24.79 |
18.69 |
17.36 |
54.42 |
13.74 |
25.25 |
27.69 |
21.44 |
16.53 |
43.00 |
|
|
|
|
|
选C占% |
60.99 |
56.31 |
24.58 |
7.01 |
27.93 |
9.69 |
17.39 |
12.67 |
25.83 |
56.09 |
13.00 |
11.70 |
21.78 |
34.09 |
16.26 |
|
|
|
|
|
选D占% |
23.71 |
3.10 |
16.82 |
8.82 |
53.58 |
49.54 |
21.95 |
22.07 |
8.41 |
16.56 |
17.42 |
24.67 |
45.49 |
25.19 |
28.27 |
|
|
|
|
|
选其它占% |
1.99 |
1.99 |
2.02 |
2.03 |
2.06 |
2.03 |
2.04 |
2.03 |
2.03 |
2.06 |
2.06 |
2.08 |
2.09 |
2.10 |
2.11 |
|
|
|
|
注:考生人数 106608人;不计缺考和零分人数。
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