实验次数 |
每个滑轮重G/N |
钩码重G/N |
提升的高度h/m |
有用功W有用/J |
拉力F/N |
绳端移动的距离s/m |
总功W总/J |
机械效率η |
1 |
0.7 |
1 |
0.1 |
0.1 |
0.6 |
0.3 |
0.18 |
56% |
2 |
0.7 |
2 |
0.1 |
0.2 |
1.0 |
0.3 |
0.3 |
67% |
3 |
0.7 |
2 |
0.2 |
0.4 |
1.0 |
0.6 |
0.6 |
67% |
4 |
0.3 |
2 |
0.2 |
0.8 |
0.6 |
0.48 |
||
5 |
0.3 |
2 |
0.2 |
0.4 |
2.1 |
0.2 |
0.42 |
95% |