2006年高考物理复习(基础回归)练习三（2006 Review of physical examination in college entrance examination (basic regression) Lian Xisan）.docVIP

2006年高考物理复习(基础回归)练习三（2006 Review of physical examination in college entrance examination (basic regression) Lian Xisan） 2006 college entrance examination of physics review (regression) Lian Xisan 1. a mass of M sb hard objects from the ground up to the high place h vertical, the maximum height of rise to H (relative to the throw point). Set out the initial velocity of V0, the landing speed is VT, then the person in the process of throwing things work for objects (A) mgH (B) MGH (C) mvt2-mgh (D) MV02 2. the quality of 0.2 kg g=10m/s2 ball from a height free fall, then the instantaneous power at the end of the third second gravity acting the whereabouts of ________W, average power of third seconds for ________W gravity acting. 3. cars on the straight road, it is the resistance of the same size, if the engine power is kept constant during the car speeding, traction, F and acceleration changes are a (A) F decreased gradually, a decreased (B) F increased, a decreased gradually (C) F decreased gradually, a increased gradually (D) F increases, a gradually increased 4. (1) conservation law can verify mechanical fall method, which of the following measurement tools are required? (A) (B) balance spring scale (C) scale (D). (2) figure is a strip of paper obtained in the experiment. Known point timer power use frequency is 50Hz and the local acceleration of gravity g = 9.80m / S2, measured by the weight of the quality of 1.00kg, the distance between two points on the tape zeroth, first close to 2mm, A, B, C and D are four consecutive hit, they point to O distance as shown from the map, map data shows that the weight by O point to point C, reduce the amount of potential energy of gravity is equal to ________J, the increase in kinetic energy is equal to ________J (three digits). The increase of kinetic energy is less than the gravitational potential energy of the reduction is the main reason: ________________________________________. As shown in figure 5. A long board is placed i