一、填空题 1.托盘天平是称量物体的__的工具,弹簧秤是测量__的工具。 2.某同学用刻度尺测量铅笔的长度是15.82厘米,他用的刻度尺的最小刻度应是__,这个测量结果的准确值是__厘米,估计值是__厘米。 3.两个力作用在同一物体上,物体作匀速直线运动,则这两个力必定是__、__、__。 4.一个物体受到一对平衡力作用时,这个物体必定处于__状态或__状态。 5.行驶的汽车关闭发动机后,还能继续向前行驶 First, fill in the blanks 1. The tray balance is a tool for weighing the object __, and the spring scale is a tool for measuring the __. 2. A student uses a graduated scale to measure the length of the pencil is 15.82 centimeters. The minimum scale of his scale is __. The exact value of this measurement is __cm. The estimated value is __cm. 3. Two forces acting on the same object, and the object moving at a constant speed, the two forces must be __, __, __. 4. When an object is subjected to a pair of balancing forces, the object must be in either the __ state or the __ state. 5. After driving the car off the engine, but also continue to move forward