八年级物理上学期学情调研三(期中 第一二三章至光的直线传播) 苏科版(国外英文资料).docVIP

八年级物理上学期学情调研三(期中 第一二三章至光的直线传播) 苏科版(国外英文资料) Study three (midterm, first, second and third chapters of light) The name __________ __________ __________ 1, fill in the blank (1 minute, 32 points) The poem the evening maple bridge in tang poem the temple of the night and half the bell to the passenger ship. The people in the boat at the edge of the maple bridge heard hanshan temple bells, because the clock hit, generate and send out, mainly from the voice spread to the human ear. 2, bass singing soprano sang softly, bass compared with soprano, bass of loudness (fill in the big or small), the tones of the sopranos (fill in the high or low). It has been noted that bats can fly in the dark without touching anything. To unravel the mystery, the surgeon did an experiment: zhu Lin, Louis with wax seal bats ears, and let it fly in the bright room, the bats everywhere meet rejection. These experiments suggest that bats are used (for eyes or ears) to see things. We know that human ears cant hear ultrasound, except ultrasound, and people cant hear. The hazy fog, the crystal-clear dew, the heavy frost, the gentle snow, the same water molecules, the space and time of our lives. In this first describe the physical phenomenon of lyric poetry, there are fog, dew, snow and frost, the snow and the frost formation belongs to phenomenon; The formation of dew and fog (to absorb or release) heat. 5, from eggs out of the fridge in summer, often see eggs dry after wet first, after the state changes of the process is first. 6, as shown in figure 1 is a common clinical thermometer, at this point it is indicating temperature ℃. Measured in the laboratory, three groups of students the boiling point of water at 97 ℃, 93 ℃ and 93 ℃ respectively, have students guess the cause of this phenomenon is between groups with the thermometer has a deviation. Please design a simple way to verify the guess: _______________________________ During the review session, the teacher wrote a pair of hot studies, whic