题型:实验探究题 题类:常考题 难易度:普通
探究弹簧测力计原理的实验
为了探究弹簧的伸长与拉力的关系,所用的器材是:一个铁架台、一根一端有钩的弹簧(能承受的最大拉力是4N)、重力是0.5N的钩码若干.
实验次数 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
钩码总重力G/N | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 |
弹簧的长度L/cm | 3.00 | 4.00 | 5.20 | 6.00 | 6.80 | 8.00 | 9.00 |
拉力F/N | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 |
弹簧的伸长△L/cm | 1.0 | 2.0 | 3.2 | 4.0 | 4.8 | 6.0 | 7.0 |
钩码总重/N | 0 | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 |
弹簧长度/cm | 2.5 | 3.0 | 3.5 | 4.0 | 4.5 | 5.0 | 5.5 | 5.8 | 5.8 |
弹簧伸长量/cm | 0 | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.3 | 3.3 |
她记录的数据如下表:
钩码质量/g | 0 | 50[ | 100 | 150 | 200 | 250 | 300 |
指针位置/cm | 2 | 3 | 4 | 5 | 6 | 8 | 11 |
钩码重(N) | 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 |
指针位置(cm) | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12.2 | 13.5 |
弹簧伸长(cm) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9.2 | 10.5 |
试题篮