2008～2009学年初三物理模拟试卷（2008~2009 school year physics simulation paper）.doc

2008～2009学年初三物理模拟试卷（2008~2009 school year physics simulation paper） This paper contributed by xztbz. Doc document may at the WAP end of the browsing experience poor. Suggest you select TXT, or download the source file to the machine view. 2008 ~ 2009 year junior physical simulation test 2009.3, a choice (each of 2 points, a total of 24 points) choice each of the following has a correct answer, a correct answer the following questions, please fill in the correct answer options under the appropriate title box. The correct answer fill options under the appropriate title box. Do not choose the option, complete the corresponding number in the box is not selected, election, the election did not give the wrong. Multiselect, wrong not to. Question no. 9101112 option1. the sun is human energy. the mother of the earths energy comes from the sun, is the A. B. geothermal energy coal, oil and natural gas C. tidal D. nuclear power 2. the following data, consistent with the fact that A. is a junior high school physics textbook of a piece of paper thickness is 1 mm B. optical transmission speed in the air is about 340m / s C. common egg density is about 0.6g / cm3 D. a household electric cooker rated power is about 800W 3. on the following sound phenomenon. Is proper A. hear and know him is judged the loudness of a sound B. Gong when the force is larger, the higher the tone of voice C. in some sections of no horn , which is in the process of sound propagation in reducing noise by D. sound can crush the human body stone , that is the 4. wave energy as shown in Figure four in the experiment demonstration, can explain the phenomenon of electromagnetic induction is 5. athletes after joint sprain, spraying a mist things to him at once. What is that? It is highly volatile liquid chlorine ethane, use it as an anesthetic can make the athlete skin rapid cooling, over a period of time to lose the pain, which is due to chloride heat sublimation B. A. C. D. melting endothermic exothe