资源简介 {#{QQABDQQSwQ5owgAgAwAgABQAACQI5h6CVUQQEUyCyCEEkQMkQpkAgSALCeAgSOgBORBABJAKEAIQAiAyYANiBINBAAB=A}A#=} }#}{#{QQABDQQSwQ5owgAgAwAgABQAACQI5h6CVUQQEUyCyCEEkQMkQpkAgSALCeAgSOgBORBABJAKEAIQAiAyYANiBINBAAB=A}A#=} }#}{#{QQABDQQSwQ5owgAgAwAgABQAACQI5h6CVUQQEUyCyCEEkQMkQpkAgSALCeAgSOgBORBABJAKEAIQAiAyYANiBINBAAB=A}A#=} }#}{#{QQABDQQSwQ5owgAgAwAgABQAACQI5h6CVUQQEUyCyCEEkQMkQpkAgSALCeAgSOgBORBABJAKEAIQAiAyYANiBINBAAB=A}A#=} }#}参考答案一、选择题1. B2. C3. D4. A5. D6. D7. B8. D9. D10. C二、填空题11. 做功冲程;乙12. 无规则运动;引力13. 比热容;40℃14. 4V;1V;不变15. 2.4V;6Ω;6Ω16. 100℃;10Ω17. (1) 手指飞向水龙头(2) 猫毛和手指摩擦产生静电,手指靠近猫鼻子时,静电放电产生火花三、实验探究题18. (1) 加热时间(2) a;b(3) a19. (1) 略(2) B(3) 电阻 R断路(4) 在电阻一定时,通过导体的电流与导体两端的电压成正比;10Ω(5) 0.4A【拓展】6V四、计算应用题20. (1) 1.8×10 Pa(2) 880N(3) 3.6kg21. (1) 变小(2) 0.3A(3) 2.5Ω-20Ω{#{QQABDQQSwQ5owgAgAwAgABQAACQI5h6CVUQQEUyCyCEEkQMkQpkAgSALCeAgSOgBORBABJAKEAIQAiAyYANiBINBAAB=A}A#=} }#} 展开更多...... 收起↑ 资源预览