
期末复习4-选择12道
Quiz
•
Physics
•
8th Grade
•
Hard

yiqing lin
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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
为建设“强富美高”新无锡,减弱噪声对市民正常生活和休息的影响,我市采取了系列措施,以下属于在声源处减弱噪声的是
在高架道路两侧安装隔音板墙
城区设置禁止鸣笛路段
在道路和小区周围植树
新建小区住房安装双层真空玻璃
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如图所示,是湖北随州曾侯乙墓出土的战国时期的编钟,距今2400余年,是世界上现存规模最大、最完整的编钟。迄今为止,人们用这套编钟还能演奏古今乐曲,且音域宽广、音色优美。这里的“音域宽广”指的是
响度大
响度变化范围大
音调高
音调变化范围大
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列实验中,不是验证声音产生条件的是
说话时,把手指放在喉咙处
弹拨吉他的弦后,立即把手轻轻放在吉他上
敲击音叉,将正在发声的音叉触及面颊
将正在发声的闹钟放入玻璃罩中,并用抽气机逐渐抽出罩内空气
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列生活中的器具,用到紫外线的是
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如图所示,是小明在探究平面镜成像的特点,他将蜡烛A作为物体,用蜡烛B模拟A的像。下列说法错误的是
白纸应放在水平面上,茶色玻璃板应与白纸垂直
为了使成像更清晰,蜡烛B应该点燃
蜡烛A、B的长度应该相等
该实验在较暗的环境中进行效果更好
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
将一枚硬币放在碗的底部,然后退到恰好看不到硬币的位置。如果想再次看到硬币,下列做法不可行的是
用手电筒照亮硬币
向碗里缓缓注水
人向碗走近一些
借助一块平面镜
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列“像”的成因,与“日食”的形成原理相同的是
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