Đề Kiểm tra Lý ở Anh

Check a Physics 9 (study period II - 2008-2009 school year). A. Testing: Select the most correct answers: 1. Rotating electrical machines pm developmental required what are the main organs can make to turn power line height?   a) coou permanent magnets. b) electrical magnets. c) line guide books and magnets. d) electricity and magnets soii line.   2. Transmission rate to upload a public phone, if the increase effective power theac up the second time the public demand charge will be:   a) Increase 2 times. b) Increase 4 times. c) Reduce two times. d) Reduce 4 times.   3. How to use the machine events: a) Maintain the effective electronic stability How not change. b) Keep the level of enforcement power line stability not change. c) increase or reduce the level of enforcement power line. d) increase or reduce power How effective. 4. When the morning rays transmitted from air into water, called i, r is the time looit khuuc corner to corner and radiotherapy are:   a) i r c) i = r d) i = 2r B) I discuss: B 1. a) Ask features pictures of an object created by contractors association glass pocket.     b) Let AB draw pictures of objects through glass contractor opportunities in the tui party. A F O F ` 2. Compare the same and different pictures of clothes created by the contractor glass tui opportunity created by collecting clothes and pictures glass delivery period? 3. Truic main contractor for the glass, A`B `AB is the influence of objects through glass as the painting contractor. a) A`B `what is influence? Contractor glass glass contractor that is what? Why? b) Ask how to draw to determine the optical center O `goals scored F, F`. c) Know your goals may be 8cm glass contractor, contractor how to put things AB 24cm diameter. Be determined distance from A`B `to the contractor glass.                                                                                                                                           B                                                                                                       A `                            A                                                                                                      B `