题型：填空题 题类：常考题 难易度：普通
探究弹簧测力计原理的实验 24
拉力/N | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 |
弹簧长度/cm | 10 | 11 | 12 | 13 | 14 | 15 | 16.5 | 18 | 19 |
①弹簧的原长是cm．
②拉力增加1N弹簧伸长cm
③该弹簧测力计的测量范围是．
弹簧受到的拉力/N | 0 | 1 | 2 | 3 | 4 |
甲弹簧的长度/cm | 6 | 7 | 8 | 9 | 10 |
乙弹簧的长度/cm | 6 | 8 | 10 | 12 | 14 |
|
F/N |
0 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
|
90 |
100 |
|
L/mm |
100 |
110 |
120 |
|
140 |
150 |
160 |
|
180 |
190 |
|
实验数据如下表．
实验次数 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
长度L/cm | 15 | 20 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
形变量x/cm | 2 | 2 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
弹力F/N | 0.48 | 0.22 | 0.06 | 0.12 | 0.18 | 0.24 | 0.30 | 0.39 | 0.51 | 0.66 |
试题篮
