初二物理提分导师

**章 机械运动 板块一 长度和时间的测量 ························ 02 板块二 运动的描述 ······························ 11 板块三 运动的快慢 ······························ 17 板块四 平均速度及其测量 ························ 23 第二章 声现象 板块一 声音的产生与传播 ························ 36 板块二 声音的特性 ······························ 43 板块三 声的利用 ································ 51 板块四 噪声的危害及控制 ························ 54 第三章 物态变化 板块一 温度及温度计 ···························· 62 板块二 熔化与凝固 ······························ 70 板块三 汽化与液化 ······························ 78 板块四 升华与凝华 ······························ 88 第四章 光现象 板块一 光沿直线传播 ··························· 100 板块二 光的反射 ······························· 108 板块三 平面镜原理 ····························· 116 板块四 光的折射 ······························· 127 第五章 透镜及其应用 板块一 透镜 ··································· 142 板块二 凸透镜成像规律及应用···················· 148 板块三 眼睛和眼镜······························ 161 第六章 质量密度 板块一 质量的基本概念 ························· 172 板块二 质量的测量······························ 177 板块三 密度(一)································ 186 板块四 密度(二)································ 196 板块五 密度的测量方法·························· 204 第七章 力学基础 板块一 力的基本概念 ··························· 222 板块二 弹力 ··································· 234 板块三 重力 ··································· 245 板块四 合力 ··································· 256