河北省新时代NT教育2024-2025学年第一学期12月高三阶段测试物理试卷+答案
书书书2024-2025学年第一学期12月高三阶段性测试卷物理注意事项:1.本试卷考试时间为75分钟,满分100分。2.答题前,考生务必将自己的姓名、准考证号填写在答题卡相应的位置。一、单选题:本题共7小题,每小题4分,共28分。在每小题给出的四个选项中,只有一项符合题目要求的。1.扬声器是语音和音乐的播放装置,在生活中无处不在。如图所示是扬声器纸盆中心做简谐运动的振动图像,下列说法正确的是A.纸盆中心振动的周期为4sB.纸盆中心振动的回复力与位移不成正比C.在1×10-3s时刻纸盆中心的速度方向发生改变D.纸盆中心做简谐运动的方程为狓=1.0×10-4cos(50π狋)m2.如图所示是在同一...
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