河北省秦皇岛市青龙县联考2024届高三上学期11月期中联考物理
2023—2024学年第一学期青龙县部分学校期中联考物理试题分值:100分考试时间:75分钟一、选选题(本大题共11小题,共46分。其中1-7题只有一个选项符合题意,每小题4分,8-10题有多个选项符合题意,全选对的给6分,选对选不全给3分,有错选的不给分。)1.如图所示“天津之眼”是一座跨河建设、桥轮合一的摩天轮,是天津市的地标之一。摩天轮悬挂透明座舱,乘客随座舱在竖直面内做匀速圆周运动。下列叙述正确的是( )A.摩天轮转动过程中,乘客的机械能保持不变B.在最高点,乘客处于失重状态C.摩天轮转动一周的过程中,乘客的向心加速度不变D.摩天轮转动过程中,乘客重力的瞬时功率保持不变2.由粗糙...
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