哈尔滨市第九中学2024届高三上学期期中考试物理
哈九中2024届高三学年上学期期中考试物理试卷一、单项选择题(本题共8小题,每题3分,共24分,在每小题给出的四个选项中,只有一项符合题目要求)1.下列说法正确的是()A.图甲中静电除尘装置两极板间存在匀强电场B.图乙中描述的是多普勒效应,A观察者接收到波的频率大于B观察者接收到波的频率C.图丙中人用手接触起电机的金属球时头发竖起来是因同种电荷相互排斥D.图丁中使摆球A先摆动,稳定后,三个球的振动周期不同2.下列关于机械振动和机械波的说法正确的是()A.有机械波一定有机械振动,有机械振动一定有机械波B.横波在介质中的传播速度由介质本身的性质决定C.在波传播方向上的某个质点的振动速度和波的传播速...
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