资源简介 新教科版科学5上1.7《制作一个潜望镜》实验报告潜望镜的结构潜望镜中有同一方向放置的两个平面镜,代表光照射下的物体经过两次反射后进入人的视野。?(?https:?/??/?mp.weixin.?/?s?__biz=MzI4NjA0NDk1Nw==&mid=2247491002&idx=8&sn=4490b7dd49766055100c4e338ba19161&chksm=ebe3bbc8dc9432de620f3b4604946db4dad1a90e9db58dcc30dfa779cbd4913fcfec69fc47bc&token=1009383221&lang=zh_CN&scene=21"\l"wechat_redirect"\t"https:?/??/?mp.weixin.?/?_blank?)3.潜望镜的工作原理:潜望镜是利用两个反射镜使物体的光线经两次反射而折向眼中,潜望镜之所以可以从下边看到上面的情况并且十分清楚,是因为两块平面镜互相平行,并且都与水平方向呈45度夹角,外面的景象通过平面镜的两次反射成像,从而让我们从下面看到了上面的景象。(?https:?/??/?mp.weixin.?/?s?__biz=MzI4NjA0NDk1Nw==&mid=2247491002&idx=8&sn=4490b7dd49766055100c4e338ba19161&chksm=ebe3bbc8dc9432de620f3b4604946db4dad1a90e9db58dcc30dfa779cbd4913fcfec69fc47bc&token=1009383221&lang=zh_CN&scene=21"\l"wechat_redirect"\t"https:?/??/?mp.weixin.?/?_blank?)4.制作简易潜望镜(?https:?/??/?mp.weixin.?/?s?__biz=MzI4NjA0NDk1Nw==&mid=2247491002&idx=8&sn=4490b7dd49766055100c4e338ba19161&chksm=ebe3bbc8dc9432de620f3b4604946db4dad1a90e9db58dcc30dfa779cbd4913fcfec69fc47bc&token=1009383221&lang=zh_CN&scene=21"\l"wechat_redirect"\t"https:?/??/?mp.weixin.?/?_blank?)制作材料:纸盒、铅笔、直角三角板、剪刀、镜子等等。(?https:?/??/?mp.weixin.?/?s?__biz=MzI4NjA0NDk1Nw==&mid=2247491002&idx=8&sn=4490b7dd49766055100c4e338ba19161&chksm=ebe3bbc8dc9432de620f3b4604946db4dad1a90e9db58dcc30dfa779cbd4913fcfec69fc47bc&token=1009383221&lang=zh_CN&scene=21"\l"wechat_redirect"\t"https:?/??/?mp.weixin.?/?_blank?)制作方法:①在纸盒两个长边距边缘约一厘米处各画一条直线。②用直角三角板在纸盒的两端距边缘约一厘米处各画一条斜线。(?https:?/??/?mp.weixin.?/?s?__biz=MzI4NjA0NDk1Nw==&mid=2247491002&idx=8&sn=4490b7dd49766055100c4e338ba19161&chksm=ebe3bbc8dc9432de620f3b4604946db4dad1a90e9db58dcc30dfa779cbd4913fcfec69fc47bc&token=1009383221&lang=zh_CN&scene=21"\l"wechat_redirect"\t"https:?/??/?mp.weixin.?/?_blank?)③在纸盒的对应面上重复画上面的线。(?https:?/??/?mp.weixin.?/?s?__biz=MzI4NjA0NDk1Nw==&mid=2247491002&idx=8&sn=4490b7dd49766055100c4e338ba19161&chksm=ebe3bbc8dc9432de620f3b4604946db4dad1a90e9db58dcc30dfa779cbd4913fcfec69fc47bc&token=1009383221&lang=zh_CN&scene=21"\l"wechat_redirect"\t"https:?/??/?mp.weixin.?/?_blank?)④用剪刀将4条斜线剪开。(?https:?/??/?mp.weixin.?/?s?__biz=MzI4NjA0NDk1Nw==&mid=2247491002&idx=8&sn=4490b7dd49766055100c4e338ba19161&chksm=ebe3bbc8dc9432de620f3b4604946db4dad1a90e9db58dcc30dfa779cbd4913fcfec69fc47bc&token=1009383221&lang=zh_CN&scene=21"\l"wechat_redirect"\t"https:?/??/?mp.weixin.?/?_blank?)⑤像图中那样将两面镜子插入纸盒开口处,并保持镜子的反射面是相对的。(?https:?/??/?mp.weixin.?/?s?__biz=MzI4NjA0NDk1Nw==&mid=2247491002&idx=8&sn=4490b7dd49766055100c4e338ba19161&chksm=ebe3bbc8dc9432de620f3b4604946db4dad1a90e9db58dcc30dfa779cbd4913fcfec69fc47bc&token=1009383221&lang=zh_CN&scene=21"\l"wechat_redirect"\t"https:?/??/?mp.weixin.?/?_blank?)⑥在镜子的反射面前各开一个窗口。(?https:?/??/?mp.weixin.?/?s?__biz=MzI4NjA0NDk1Nw==&mid=2247491002&idx=8&sn=4490b7dd49766055100c4e338ba19161&chksm=ebe3bbc8dc9432de620f3b4604946db4dad1a90e9db58dcc30dfa779cbd4913fcfec69fc47bc&token=1009383221&lang=zh_CN&scene=21"\l"wechat_redirect"\t"https:?/??/?mp.weixin.?/?_blank?) 展开更多...... 收起↑ 资源预览