八年级物理第六章单元测试卷(2011.3)(国外英文资料).docVIP

八年级物理第六章单元测试卷(2011.3)(国外英文资料) The sixth chapter eight grade physical unit test volume (2011.3) The class name. A choice (every day, there is only one correct answer. Each of 2 points, a total of 30 points) Question no. One Two Three Four Five Six Seven Eight Nine Ten Eleven Twelve Thirteen Fourteen Fifteen Answer You are in the classroom. The air quality is about (known to the air density is 1.29 kg / m3) A. g B. g C. dozens of thousands of tens of hundreds of kilograms of D. mg 2. in edible oil, soy sauce, wine and water these kinds of common liquid, density is the largest A. B. C. D. edible oil sauce liquor water As figure 3. shows, steel spring as a member of the body-building expander mainly use steel, good A. conductive B. C. elastic insulation thermal conductivity D. 4. by weight to wear that the quality of objects, the measurement results will be compared to the real values A. small B. large C. is not affected by the D. cannot be determined 5. for nails, glass, pencil, mercury, rubber and ceramic pieces of these items, they are divided into Xiaohua as the table shows the two class, he is classified according to what kind of physical properties of Physics First Second Nails, pencil, mercury Glass, rubber, ceramic rod The density of A. B. magnetic conductive C. hardness of D. The following definition of the density of 6., is correct The density of A. and the mass of a body is proportional to the The volume is inversely proportional to the density of B. and object The density of C. and the volume of the object is proportional to the The density of D. is a property of the material itself, has nothing to do with the mass and volume In 7. the mercury thermometer closed a certain amount of mercury in the process, the thermometer temperature measurement, mercury has thermal expansion and contraction, the following statement is correct The quality of A. in the same mercury thermometer mercury thermometer B. in constant volume Mercury thermometer C. in constant height