2022年五年级上册科学第二单元试卷 .pdf

vip 会员免费新罗区 2017-2018 学年第一学期小学五年级科学第二单元质量检测试卷（考试时间：40 分钟 总分：100 分）命题人：赖芳芳审题人：简秀娟学校：班级：姓名：座号：一、填空（2 10=20分）1.产生影子需要的条件是:、和屏。2.在同一时刻，将长度不同的物体放置在同一地方，其影子的不同相同。3.太阳的光线以每秒约的速度传播，并在同一种物质中是沿着传播的。4.光碰到镜面改变了传播方向，被反射回去，这种现象叫作：。5.夜晚，我们在灯光下读书、写字，是利用了光的原理。6.物体的颜色与吸热的本领有关，深色物体比浅色物体吸热。7.是一种清洁、节能和安全的能源。二、单选题（请将所选答案前的字母填入相应题号前的 内）（2 15=30）1.下列物体中不是光源的是：（）A.电灯 B.萤火虫 C.荧光棒 D.月亮 2.一天中，阳光下物体影子方向的变化是（）。A.西北东B.东北西C.西南东D.东南西 3.阳光、物体、影子三者的位置关系错误的是（）A.B.C.D.vip 会员免费 4.一天中阳光下物体影子长度的变化是（）A.长短B.短长C.短长短D.长短长 5.阳光下，旗杆的影子长5 米，过了一会影子变长了。这种现象应该发生在（）A.早晨 B.上午 C下午 D.晚上 6.用手电筒从上面和侧面照射一个杯子，所产生的影子：（）A.形状相同 B.形状不同 C.方位相同 D.无法确定 7.在灯光下靠近墙的地方，用手做出各种姿态，在墙上形成手影，当电灯保持静止，手向墙靠拢时，在墙上的手影将会：（）A.变小 B.变大 C.不变 D.先变大后变小 8.排纵队时，如果后一位同学看到前一位同学挡住了前面所有的人，就表示队伍排整齐了，这主要是因为：（）A.光速极大 B.光沿直线传播 C.光的反射 D.光的折射 9.以下没有利用反光原理的是（）。A.汽车反光镜B.五官科医生用的额镜C.家用穿衣镜D.放大镜 10.潜望镜的两块镜片都是（）。A.平面镜B.凹面镜C.凸透镜D.一块是凹面镜，一块是凹透镜 11.现在我国仍然大力提倡使用（）原理做成的太阳灶，以充分利用能源。A.平面镜B.凹面镜C.凸透镜D.棱镜 12.同样材料的物体放置的角度也相同，但表面涂上（）色，吸收太阳热本领最大了。A.红B.白C.黑D.黄 13.在阳光下，同一种黑色纸袋按哪种方式摆放，升温比较快：（）A.和地面垂直 B.和地面水平 C.和太阳光垂直 D.和太阳光平行文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3vip 会员免费 14.哪个是一种取之不尽的能源：（）A 太阳能B.石油C.煤D.天然气 15.在我国，人们很早就知道使用哪种工具判断时间：（）A.日晷B.地动仪C铜镜D.司南三、结合所学知识，联系生活实际，分析简答：（5+5+5+6=21 分）1.根据你一天中太阳位置变化的了解，分析太阳的位置与影子长短的关系。2凹面镜和凸透镜的原理在生活和生产中有哪些应用？请举例说明。3.人们为什么夏天穿浅色衣服，冬天穿深色衣服？4.请举例说明太阳能在生产、生活中的应用。（至少写3 个）文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3vip 会员免费四、实验探究（6+6+6+11=29 分）1.下图是一个潜望镜，请面出沿水平方向射入镜筒的光线的传播路线。2.下图是记录一天中牙签影长的变化情况的柱形图，根据图表，你发现了什么？答：。3.请将图和说明连起来。文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3vip 会员免费4.把手电筒放置在离自己最近的卡纸前一定距离，让手电筒的光射进小孔,据图回答：图一图二(1)图一的纸屏上能看到手电筒的光斑吗?答:。(2)图二的纸屏上能看到手电筒的光斑吗?文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3vip 会员免费答:。(3)以上实验说明什么?答:。文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3vip 会员免费答案：一、填空题1.光源、遮挡物 2.长度、方向 3.30万千米、直线 4.光的反射 5.反射 6.快 7.太阳能二、填空题1-5:D A A D C 6-10:B A B D A 11-12:B C C A A 三、结合所学知识，联系生活实际，分析简答：（5+5+5+6=21 分）1.阳光下物体的影子长短的变化是随着太阳在空中的位置变化而变化，太阳的位置最高时影子最短，太阳位置最低时影子最长。长短长。2.凹面镜：额镜、太阳灶、近视镜凸面镜：照相机、投影仪、望远镜、放大镜、老花镜。3.因为浅颜色的衣服反光强，吸收光的能力弱，深颜色的衣服反光弱，吸收光的能力强。4太阳能热水器、太阳能路灯、太阳能电风扇等四、实验探究（6+6+6+11=29 分）1.作图略。2.阳光下物体的影子长短的变化是随着太阳在空中的位置变化而变化，中午时分太阳的位置最高时影子最短，傍晚时分太阳位置最低时影子最长。3.文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3vip 会员免费4.（1）不能。（2）能。（3）光沿直线传播。文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 HO9Q3K4X6I2 ZA9P8X7N9Z3文档编码:CQ9B2L5A5K5 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