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题目:见高中物理下册,第一章、练习四第(6)、第(7)两题。一、模拟实验,使学生首先获得足够的感性认识。实验装置如图1、图2所示。纸板固定在气垫导轨的滑块上,滑块可在水平方向做匀速直线运动和简谐振动。笔杆固定在弹簧振子上,振子在竖直方向上做简谐振动(实际是个阻尼振动,在短时间内可看成简谐振动)。如果纸板做匀速直线运动,笔在竖直方向做简谐振动,就得到第(6)题的模拟曲线如图1;若纸板在水平方向做简谐振动,笔在竖直方向做简谐振动,并经细
Title: See the second volume of the High School Physics Book, Chapter 1 and Exercise 4 (6) and (7). First, simulation experiments, so that students first get enough emotional perception. Experimental devices are shown in Figure 1 and Figure 2. The cardboard is fixed on the slider of the air-cushion guide, and the slider can perform uniform linear motion and simple harmonic vibration in the horizontal direction. The pen holder is fixed on the spring vibrator, and the vibrator performs simple harmonic vibration in the vertical direction (actually, it is a damping vibration and can be seen as simple harmonic vibration in a short time). If the paperboard moves in a uniform linear motion and the pen performs simple harmonic vibration in the vertical direction, the simulated curve of (6) is obtained as shown in Figure 1. If the cardboard performs simple harmonic vibration in the horizontal direction, the pen performs simple harmonic vibration in the vertical direction. And fine