实验次数 | 装置 | 钩码重/N | 动滑轮重/N | 测力计示数/N | 钩码上升距离/m | 绳端移动距离/m | 机械效率η |
1 | 甲 | 2 | 0.5 | 1.3 | 0.2 | 0.4 | 76.9% |
2 | 甲 | 3 | 0.5 | 1.8 | 0.2 | 0.4 | |
3 | 乙 | 2 | 0.7 | 1.4 | 0.2 | 0.4 | 71.4% |