{#{QQABCQQQw4owggqo4AgBYIAAACAQg5C6QQQQnmQACCAQEgQQkhkoEACSCLSWgOguBQARAAEBMKAAIA4iCyIANNAABBIA=A}=#}#} {#{QQABCQQQw4owggqo4AgBYIAAACAQg5C6QQQQnmQACCAQEgQQkhkoEACSCLSWgOguBQARAAEBMKAAIA4iCyIANNAABBIA=A}=#}#} {#{QQABCQQQw4owggqo4AgBYIAAACAQg5C6QQQQnmQACCAQEgQQkhkoEACSCLSWgOguBQARAAEBMKAAIA4iCyIANNAABBIA=A}=#}#} {#{QQABCQQQw4owggqo4AgBYIAAACAQg5C6QQQQnmQACCAQEgQQkhkoEACSCLSWgOguBQARAAEBMKAAIA4iCyIANNAABBIA=A}=#}#} {#{QQABCQQQw4owggqo4AgBYIAAACAQg5C6QQQQnmQACCAQEgQQkhkoEACSCLSWgOguBQARAAEBMKAAIA4iCyIANNAABBIA=A}=#}#} {#{QQABCQQQw4owggqo4AgBYIAAACAQg5C6QQQQnmQACCAQEgQQkhkoEACSCLSWgOguBQARAAEBMKAAIA4iCyIANNAABBIA=A}=#}#} 参考答案 一、选择题 1. C 2. C 3. D 4. B 5. A 6. A 7. C 8. D 9. C 10. B 二、实验探究题 11. (1) (2) 0.45 m/s, 偏小 (3) 变速 12. (1) 温度计的玻璃泡接触到了容器底部, 秒表 (2) 正在, 水蒸气 (3) 略 (4) 98°C, 继续吸热但温度保持不变 (5) 升高 13. (1) 52°C (2) 吸收, 不变 (3) B 14. (1) A 和 B (2) 琴弦的长短 (3) 0.76 15. (1) 秒表、刻度尺 (2) 略 (3) v = s/t 三、综合应用题 16. 错因分析:1.19 cm 与其他数据偏差较大,属于错误数据,不能参与平均值计算。 正确解答:L = (1.90 cm + 1.91 cm + 1.89 cm) / 3 = 1.90 cm 17. (1) 液化 {#{QQABCQQQw4owggqo4AgBYIAAACAQg5C6QQQQnmQACCAQEgQQkhkoEACSCLSWgOguBQARAAEBMKAAIA4iCyIANNAABBIA=A}=#}#} (2) 在轨水生生态研究项目 (3) 静止 (4) 不是 18. “小冰粒”是冰箱内的水蒸气遇冷凝华形成的;“小水珠”是排骨上的冰粒在室温下熔化形成的。 19. 略 20. s (1) t = = 24 km / 100 km/h = 0.24 h v s (2) v = = 6.845 km / (4/60) h = 102.6 km/h, 超速 t (3) L = v't' - s = 82 km/h * 0.3 h - 24 km = 4.6 km 21. (1) t = 8:15 - 8:00 = 0.25 h s (2) v = t = 12 km / 0.25 h = 48 km/h (3) s = v't' = 80 km/h * (3/60) h = 4 km {#{QQABCQQwQ4owggqo4AgBYIAAACAQg5C6QQQQnmQACCAQEgQQkhkoEACSCLSWgOguBQARAAEBMKAAIA4iCyIANNAABBIA=A}=#}#}
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