题型:实验探究题 题类:常考题 难易度:普通
滑轮(组)机械效率的测量实验
次数 | 钩码所受的重力G/N | 钩码提升高度h/m | 拉力F/N | 绳端移动距离s/m | 机械效率η |
1 | 1 | 0.1 | 0.7 | 0.3 | 47.6% |
2 | 1 | 0.2 | 0.7 | 0.6 | 47.6% |
3 | 2 | 0.1 | 1.1 | 0.3 | 60.6% |
4 | 4 | 0.1 | 2.0 | 0.3 |
实验次数 | 钩码重G/N | 钩码提升高度h/m | 拉力F/N | 拉力通过距离s/m | 机械效率η |
1 | 2.0 | 0.1 | 1.0 | 0.3 | 67% |
2 | 3.0 | 0.1 | 1.35 | 0.3 | 74% |
3 | 3.0 | 0.1 | 1.0 | 0.5 | 60% |
试题篮