2015年高考物理试卷(浙江)【6月】(空白卷)
2015年浙江省高考物理试卷一、选择题(共4小题,每小题6分,满分24分)1 .下列说法正确的是()A.电流通过导体的热功率与电流大小成正比B.力对物体所做的功与力的作用时间成正比C.电容器所带电荷量与两极间的电势差成正比D.弹性限度内,弹簧的劲度系数与弹簧伸长量成正比2.如图所示,气垫导轨上滑块经过光电门时,其上的遮光条将光遮住,电子计时器可自动记录遮光时间△t,测得遮光条的宽度为△x,用近似代表滑块通过光电门时的瞬时速度,为使 更接近瞬时速度,正确的措施是()A. 换用宽度更窄的遮光条B.提高测量遮光条宽度的精确度C. 使滑片的释放点更靠近光电门D.增大气垫导轨与水...
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