2012年高考物理试卷（四川）（空白卷）
二、选择题（本题共8小题。在每小题给出的四个选项中，有的只有一个选项是正确的，有的有多个选项正确，全部选对的得6分，选对但不全的得3分，有选错的得0分）14．物体由大量分子组成，下列说法正确的是A．分子热运动越剧烈，物体内每个分子的动能越大B．分子间引力总是随着分子间的距离减小而减小C．物体的内能跟物体的温度和体积有关D．只有外界对物体做功才能增加物体的内能15．今年4月30日，西昌卫星发射中心发射的中圆轨道卫星，其轨道半径为2.8×m，它与另一颗同质量的同步轨道卫星（轨道半径为4.2×m）相比A．向心力较小B．动能较大C．发射速度都是第一宇宙速度D．角速度较小D．从高能级向低能级跃迁时，氢原...
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