1.将物体匀速拉上斜面,斜面倾角越小越省力吗一个同学做了如图1所示的三个实验:将同一木块放在倾角不同的三个斜面上(θ_3>θ_2>θ_1),木块与斜面间的动摩擦因数相同.分别用弹簧秤将木块沿斜面匀速拉上去,结果发现三次拉力的大小 F_3>F_2>F_1,于是他归纳出一个结论:“将物体匀速拉上斜面,斜面倾角越小越省力.” 1. Uniformly pull the object onto the incline. The smaller the inclination of the incline, the easier it is. A student made three experiments as shown in Figure 1. Place the same block on three inclined planes with different inclination angles (θ_3>θ_2>θ_1) The dynamic friction coefficient between the wooden block and the inclined plane is the same. The wooden block is pulled up along the inclined surface with a spring balance, and the result shows that the size of the three pulling forces F_3>F_2>F_1. So he concludes that: “The object is evenly pulled up the incline. The smaller the slope, the more effort it can take.”