2015年高考物理试卷(安徽)(空白卷)
2015年安徽高考物理试卷 一.选择题(共7小题)1.如图示是α粒了(氦原子核)被重金属原子核散射的运动轨迹,M、N、P、Q是轨迹上的四点,在散射过程中可以认为重金属原子核静止不动.图中所标出的α粒子在各点处的加速度方 向正确的是() A.M点B.N点C.P点D.Q点 2.由库仑定律可知,真空中两个静止的点电荷,带电量分别为q1和q2,其间距离为r时,它们之间相互作用力的大小为F=k,式中k为静电力常量.若用国际单位制的基本单位表示,k 的单位应为() A.kg•A2•m3B.kg•A2﹣•m3•s4﹣ C.kg•m2•C2﹣D.N•m2•A2﹣3.图示电路中,变压器为理想变压器,a、b接...
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