测量次序 | 1 | 2 | 3 | 4 | 5 | 6 |
弹簧弹力F/N | 0.49 | 0.98 | 1.47 | 1.96 | 2.45 | 2.94 |
弹簧的长度L/cm | 12.45 | 14.75 | 16.95 | 19.20 | 21.45 | 23.75 |
弹簧伸长量x/cm | 2.5 | 4.55 | 6.75 | 9.00 | 11.25 | 13.55 |
逐差相减 | 6.75 | ① | 6.80 |