江苏省苏州市2024-2025学年高三上学期期末学业质量阳光指标调研物理试题答案.pdf

苏州市2024~2025学年第一学期学业质量阳光指标调研卷

高三物理参考答案及评分标准2025.01

一、单项选择题：共11题，每题4分，共44分．每题只有一个选项最符合题意．

题号1234567891011

答案DDCADCBCAAB

二、非选择题：共5题，共56分．其中第13~16题解答时请写出必要的文字说明、方程式和重要的演算

步骤，只写出最后答案的不能得分；有数值计算时，答案中必须明确写出数值和单位．

12．(15分，每小问3分)

(1)B

(2)B

(3)145（144-147均得分）

(4)3.3(3.2~3.5均得分)

(5)电池电动势发生了变化、内阻发生了变化、铜片和锌片插入位置或深度改变了(回答合理即得分)

13．(6分)

(1)据题意，折射角为45°·····························································1分

由折射定律得

·················································································1分

所以该玻璃的折射率··························································1分

(2)AC的距离·································································1分

光在玻璃中的传播速度··························································1分

所以光由A到C的传播时间········································1分

14．(8分)

(1)以C为研究对象，受力分析如图，货车匀速行驶时

FAcos30°+FBcos30°=mg··························································1分

FA=FB·······································································································································1分

解得·········································································1分

(2)当汽车刹车C恰好脱离B时，=0····································1分

竖直方向cos30°=mg··························································1分

水平方向sin30°=ma··························································1分

解得

即汽车刹车的最大加速度a=···········································2分

15．(12分)

(1)从B滑上A到第一次达到共同速度v1，根据系统动量守恒

·······················································2分

得·······························································1分

(2)从第一次碰撞后到第二次达到共同速