1.3速度 课件-2021-2022学年高一上学期物理鲁科版（2019）必修第一册

鲁科版2019物理必修一 1.3速度 Life is not about waiting for the storm to pass, its about learning to dance. Life is not about waiting for the storm to pass, its about learning to dance. 导入新课 自然界中物体的运动千差万别， 我们该如何描述其运动的快慢？ Life is not about waiting for the storm to pass, its about learning to dance. Life is not about waiting for the storm to pass, its about learning to dance. 1.平均速度 交流讨论： 以下有四个物体,请同学们来比较一下它们运动的快慢程度 运动对象 初始位置（m） 经过时间（s） 末位置（m） 猎豹 0 6.13 100 沿平直道路行驶的公共汽车 0 10 100 沿平直轨道运行的列车 500 30 1250 在天空中直线飞行的飞机 500 10 2500 Life is not about waiting for the storm to pass, its about learning to dance. Life is not about waiting for the storm to pass, its about learning to dance. 1.平均速度 交流讨论： 汽车从A点沿直线运动到B点，A到B的距离为s，用时为t，则汽车的速度是？在相同时间内，从B点运动到A点的速度是？ Life is not about waiting for the storm to pass, its about learning to dance. Life is not about waiting for the storm to pass, its about learning to dance. 1.平均速度 交流讨论： 某人从高为5m处以某一初速度竖直向下抛一小球，在与地面相碰后弹起，5s后上升到高为2m处被接住，则这段过程中，如何求小球的平均速度？ Life is not abo