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要想测量物体运动的速度,原理很简单,只要你测出物体运动的路程s和这段路程中的运动时间t,根据v=s/t即可计算出物体在某段路程中的速度.不过,我们选来作为测量的对象却是形形色色的.一、纸锥例1在探究纸锥下落速度的试验中:(1)需要测量的物理量是.(2)需要的测量工具是.(3)运用的计算公式是.解析:要解决此题,需要掌握速度的测量公式:v=s/t,要测量纸锥的下落的路程即下落高度和下落所用的时间.要测量时间,需要的测量器材是秒表,要测量下落高度,要用刻度尺.
To measure the speed of object movement, the principle is very simple, as long as you measure the movement of the object s and the distance during this time t, according to v = s / t to calculate the speed of the object in a certain distance. However, we selected as the object of measurement is varied.A paper cone example 1 in the study of paper cone drop speed test: (1) the physical quantity to be measured is (2) the required measuring tool is (3 ) The calculation formula used is: Resolution: To solve this problem, you need to know the speed measurement formula: v = s / t, to measure the distance the paper cone falls, ie, the drop height and the time it takes for the drop. Measuring equipment is a stopwatch, to measure the height of the drop, use a scale.