useing some available items of life as laboratory equipments to design some mechanical, thermal, acoustic, optical, electrical and some applicable junior physics experiments. and combining these experiments with physics teaching and taking these experiments to physical education and teaching activities. To help students better learning, understanding and mastering the physical mechanics junior high, some of the basic concepts of thermal, acoustic, optical, electrical, and this way of teaching can make students interested in studying physics knowledge . the Students canbe also be increaseedin the spirit of innovation.
最新问答: 句子补充(简单)When it comes to...most people belive that...but oth 小明自制了一个简易投影仪(如图),在暗室中将印有奥运五环(红、黄、蓝、绿、黑五色环)标志的透明胶片,贴在发白光的手电筒上 Our company has gone into administration是什么意思 下列关于有机物的说法中,不正确的是( ) snake英语怎么读 范仲淹的高尚品质 范仲淹的高尚品质 圆内接四边形相邻三个内角的比是2:1:7,则这个四边形的最大角的度数为 为了观察柑橘皮上的青霉,某班的同学制作6份相同的培养基,大家还设计了3种实验方案,如下表,请分析作答: 方案 接种前的培 选词填空.继续 选词填空.继续 陆续 持续 连续 1.我们( )跳上一只船.2.我( )三年都去 用氯酸钾和二氧化锰制取O2,当制取22.4升O2时,需氯酸钾的质量?(ρ02=1.293克/升) 希望 盼望 渴望1.生日那天,我()得到一份礼物.2.全世界儿童都()和平.3.我()今年假期去北京旅游. the bear necessities什么意思 求《I,Robot》的观后感,要英语的 大气压与温度有什么关系 请问,“热平衡方程”和“守恒定律”以及“比热容”是什么? Listen!Someone_____(cry)over there. 形容语言很有力 成语用什么? 地球上的水和空气是哪来的 翻译“在周五早上“ 火车提速后,平均速度提高到原来的x倍.那么行驶同样的路程,时间可缩短到原来的几分之几?