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1、第 1 页 共 3 页初中物理质量与密度综合测试卷初中物理质量与密度综合测试卷一、单选题一、单选题(共共 10 道，每道道，每道 10 分分) 1.水银温度计中封闭着一定量的水银,在用这种温度计测量温度的过程中,下列说法正确的是 ()A.温度计中水银的质量不变 B.温度计中水银的体积不变 C.温度计中水银的长度不变 D.温度计中水银的温度不变 2.下列几种物体的量最接近 2kg 的是() A.一个乒乓球 B.一只公鸡 C.一张桌子 D.一头牛 3.某与人等大的雕像的密度是。则每一尊人的雕像的质量约为()A.5kg B.50kg C.500kg D.5000kg 4.一个小药瓶质量为 5g,装满
2、某种药液时总质量为 21g,装满水的总质量为 25g,则这种药液的 密度为()A. B. C. D. 5.甲、乙两种物质的质量与体积的关系如图所示,由图可知,甲、乙的密度关系( )A. B. C. D.不能确定 6.关于质量和密度,下列说法中正确的是() A.冰冻矿泉水完全熔化后,质量变小,密度不变 B.植物种子带到太空后,质量变小,密度不变 C.一杯牛奶喝掉一半后,质量变小,密度不变 D.给自行车车胎打气时,车胎内气体质量变大, 密度不变 7.甲、乙两物体质量之比是 2:1,密度之比 2:3。则体积之比是()第 2 页 共 3 页A.1:2 B.3:1 C.1:3 D.3:4 8.关于密度,
3、下列说法正确的是() A.把一块砖切成体积相等的两块,密度变为原来的一半 B.铁的密度比水的密度大,表示铁 的质量比水的质量大 C.密度不同的两个物体其质量可能相同 D.密度相同的两个物体其质量一定相同 9.甲物质的密度为,乙物质密度为,各取一定质量混合后密度为。假设混合前后总体积保持不变,则所取甲、乙两种物质的质量之比是() A.5:2 B.2:5 C.5:4 D.4:5 10.体积相同的实心球甲和乙由两种不同材料制成,在天平右盘中放两个甲球,左盘中放三个 乙球时,天平恰好平衡,则() A.甲球和乙球的质量之比为 1:1 B.甲球和乙球的质量之比为 2:3 C.甲球和乙球的密度之比为 3:2
4、 D.甲球和乙球的密度之比无法确定 内部资料 仅供参考内部资料 仅供参考9JWKffwvG#tYM*Jg&6a*CZ7H$dq8KqqfHVZFedswSyXTy#&QA9wkxFyeQ!djs#XuyUP2kNXpRWXmA&UE9aQGn8xp$R#͑GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4NGpP$vSTT#&ksv*3tnGK8!z89AmYWpazadNu#KN&MuWFA5uxY7JnD6YWRrWwcvR9CpbK!zn%Mz849GxGjqv$UE9wEwZ#QcUE%&qYpEh5pDx2zVkum&gTXRm6X4N
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