1/5单选题
难度：
1.
小妍同学在研究物体密度时，对四种固体的密度与体积的关系做出的图象，如图所示，根据图象可知下列说法中正确的是（ ）
| A | ρ1＞ρ2＞ρ3＞ρ4 |
| B | ρ2＞ρ1＞ρ4＞ρ3 |
| C | ρ4＞ρ3＞ρ2＞ρ1 |
| D | ρ2＞ρ3＞ρ1＞ρ4 |
- 提示1：
- PHA+5a+G5bqm5piv54m55oCn77yM5LiO5p2Q5paZ5pyJ5YWz44CCPC9wPg==
- 提示2：
- PHA+5a+G5bqm5ZKM54mp5L2T5L2T56ev5peg5YWz44CCPC9wPg==
- 提示3：
- PHA+z4E8c3ViPjE8L3N1Yj7lr4bluqbmnIDlpKfjgII8L3A+
正确答案：QQ==
PHA+55Sx5Zu+6LGh55+l77ya5Zyo5L2T56ev5Y+R55Sf5Y+Y5YyW5pe277yM5q+P56eN54mp6LSo5a+G5bqm5piv5LiA5a6a5YC877yM5LuO5LiK5Yiw5LiL5a+G5bqm6YCQ5riQ5YeP5bCP77yM5omA5Lul56ys5LiA56eN54mp6LSo5a+G5bqm5pyA5aSn77yM56ys5LqM56eN54mp6LSo5a+G5bqm5qyh5LmL77yM56ys5LiJ56eN54mp6LSo5a+G5bqm5pu05bCP77yM56ys5Zub56eN54mp6LSo5a+G5bqm5pyA5bCP77yOPC9wPjxwPuaVhemAiUE8L3A+
2/5单选题
难度：
2.
如图，是甲、乙两种物质的质量和密度的关系图象，从图象上可获信息不正确的是（ ）
| A | 甲物质的密度比乙物质的密度大 |
| B | 无法看出它们的密度大小关系 |
| C | 对乙物质来说，它的质量与体积成正比 |
| D | 对甲、乙物质来说，v/m是一个定值 |
- 提示1：
- PHA+5a+G5bqm5piv54mp6LSo54m55oCn77yM5LiO6LSo6YeP5L2T56ev5peg5YWz44CCPC9wPg==
- 提示2：
- PHA+bXblm77lg4/vvIznm7Tnur/otorpnaDov5Ft5a+G5bqm6LaK5aSnPC9wPg==
- 提示3：
- PHA+54m55a6a5p2h5Lu25LiL54mp5L2T5a+G5bqm5LiN5Y+YPC9wPg==
正确答案：Qg==
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
3/5单选题
难度：
3.
如图所示的是A，B两种物质的质量m与体积V的关系图象，由图象可知，A，B两种物质的密度ρA、ρB 和水的密度ρ水 之间的关系是（ ）
| A | ρB ＞ρ水 ＞ρA |
| B | ρB ＞ρA ＞ρ水 |
| C | ρA ＞ρ水 ＞ρB |
| D | ρ水 ＞ρA ＞ρB |
- 提示1：
- PHA+5Y+v5Lul55S75LiA5p2h5Z6C55u05LqOVueahOebtOe6v+OAgjwvcD4=
- 提示2：
- PHA+5L2T56ev55u45ZCM77yM6LSo6YeP6LaK5aSn5a+G5bqm6LaK5aSn44CCPC9wPg==
- 提示3：
- PHA+bXblm77lg4/vvIznm7Tnur/pnaDov5Ft5a+G5bqm5aSn44CCPGJyPjwvcD4=
正确答案：Qw==
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
4/5单选题
难度：
4.
如图是小明同学在研究甲、乙两种不同的固体物质的质量和体积的关系时得出的图象. 则根据图象可知，甲、乙两种物质的密度之比为ρ甲：ρ乙为（ ）
| A | 8：1 |
| B | 4：1 |
| C | 2：1 |
| D | 1：1 |
- 提示1：
- PHA+5YiG5Yir5Zyo55Sy5LmZ5Lik55u057q/5LiK5om+54m55a6a55qE54K544CCPC9wPg==
- 提示2：
- PHA+55So54m55a6a54K55LiK55qE6LSo6YeP6Zmk5Lul5L2T56ev44CCPC9wPg==
- 提示3：
- PHA+5b6X5Ye655qE5a+G5bqm5YGa5q+U5YC844CCPC9wPg==
正确答案：QQ==
PGRpdj7nlLHlm77lj6/nn6XvvIznlLLkuZnkuKTniankvZPnmoTlr4bluqbkuYvmr5TPgTxzdWI+55SyPC9zdWI+L8+BPHN1Yj7kuZk8L3N1Yj4gPShtPHN1Yj7nlLI8L3N1Yj4gL1Y8c3ViPueUsjwvc3ViPikgOiggbTxzdWI+5LmZPC9zdWI+IC9WPHN1Yj7kuZk8L3N1Yj4pID04Z8OXMmNtPHN1cD4zPC9zdXA+LzJnw5cxY208c3VwPjM8L3N1cD49ODoxIO+8jOaVhemAiUEuPC9kaXY+
5/5单选题
难度：
5.
某研究性学习小组做“水的体积随温度变化”的研究，得到如图所示的图象. 从图中可知，水温度从2℃升到8℃的过程中，其密度（ ）
| A | 先变大后变小 |
| B | 先变小后变大 |
| C | 一直变大 |
| D | 保持不变 |
- 提示1：
- PHA+5LiN6ICD6JmR6JK45Y+R77yM5omA5Lul6LSo6YeP5LiN5Y+Y44CCPC9wPg==
- 提示2：
- PHA+5L2T56ev5YWI5Y+Y5bCP5ZCO5Y+Y5aSnPC9wPg==
- 提示3：
- PHA+5a+G5bqm5YWI5Y+Y5aSn5ZCO5Y+Y5bCPPC9wPg==
正确答案：QQ==
PGRpdj7msLTnmoTotKjph4/kv53mjIHkuI3lj5jvvIzmoLnmja7lhazlvI/PgT1tIC92IOWPr+efpe+8jOS9k+enr+WPmOWkp++8jOWvhuW6puWPmOWwj++8jOS9k+enr+WPmOWwj++8jOWvhuW6puWPmOWkp++8jOawtOeahOS9k+enr+WFiOWPmOWwj+WQjuWPmOWkp++8jOaJgOS7peWFtuWvhuW6pueahOWPmOWMlueJueeCueaYr+WFiOWPmOWkp+WQjuWPmOWwjy4g5pWF6YCJQTxicj48L2Rpdj4=