SAT数学真题精选.doc

SAT数学真题精选以下是小编为大家整理的SAT数学真题精选，希望对大家有帮助，赶快下载吧。1. If 2 x + 3 = 9, what is the value of 4 x 3 ?(A) 5 (B) 9 (C) 15 (D) 18 (E) 212. If 4(t + u) + 3 = 19, then t + u = ?(A) 3 (B) 4 (C) 5 (D) 6 (E) 73. In the xy-coordinate (坐标) plane above, the line contains the points (0,0) and (1,2). If line M (not shown) contains the point (0,0) and is perpendicular (垂直) to L, what is an equation of M?(A) y = -1/2 x (B) y = -1/2 x + 1 (C) y = - x (D) y = - x + 2 (E) y = -2x4. If K is divisible by 2,3, and 15, which of the following is also divisible by these numbers?(A) K + 5 (B) K + 15 (C) K + 20 (D) K + 30 (E) K + 455. There are 8 sections of seats in an auditorium. Each section contains at least 150 seats but not more than 200 seats. Which of the following could be the number of seats in this auditorium?(A) 800 (B) 1,000 (C) 1,100 (D) 1,300 (E) 1,7006. If rsuv = 1 and rsum = 0, which of the following must be true?(A) r 1 (B) s 1 (C) u= 2 (D) r = 0 (E) m = 07. The least integer of a set of consecutive integers (连续整数) is 126. if the sum of these integers is 127, how many integers are in this set?(A) 126 (B) 127 (C) 252 (D) 253 (E) 2548. A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory. There are 200 seniors, 300 juniors, and 400 sophomores who applied. Each seniors name is placed in the lottery 3 times; each juniors name, 2 time; and each sophomores name, 1 times. If a students name is chosen at random from the names in the lottery, what is the probability that a seniors name will be chosen?(A)1/8 (B) 2/9 (C) 2/7 (D) 3/8 (E) 1/2以下是小编为大家整理的SAT2物理习题 Kinematics，希望对大家有帮助，跟随SAT资料下载的小编一起来练习练习吧!1.An object thats moving with constant speed travels once around a circular path. Which of the following is/are true concerning this motion?I. The displacement is zero.II. The average speed is zero.III. The acceleration is zero.(A) I only(B) I and II only(C) I and III only(D) III only(E) II and III only2. At time t = t1，an objects velocity is given by the vector v1, shown below. A short time later, at t = t2, the objects velocity is the vector v2. If v1 and v2 have the same magnitude, which one of the following vectors best illustrates tfae objects average acceleration between t = t1 and t = t2 ? 3. Which of the following is/are true?I. If an objects accelCTation is constant, then it must move in a straight line.II. If an objects acceleration is zero, then its speed must remain constant.III. If an objects speed remains constant, then its acceleration must be zero.(A) I and II only(B) I and III only(C) II only(D) III only(E) II and III only4. A baseball is thrown straight upward. What is the balls acceieration at its hipest point?(A) 0(B) 1/2g,downward(C) g,downward(D) 1/2g,upward(E) g,upward5. How long would it take a car, starting from rest and accelerating uniformly in a straight line at 5m/s2, to cover a distance of 200 m?(A) 9.0 s(B) 10.5 s(C) 12.0 s(D) 15.5 s(E) 20.0 s6. A rock is dropped off a cliff and strikes the ground with an impact velocity of 30 m/s. How high was the cliff?(A) 15 m(B) 20 m(C) 30 m(D) 45m(E) 60 m7. A stone is thrown horizontally with an initial speed of 10 m/s from a bridge. If air resistance could be ignored, how long would it take the stone to strike the water 80 m below the bridge?(A) 1s(B) 2s(C) 4s(D) 6s(E) 8s8. A soccer ball, at rest on the ground, is kicked with an initial velocity of 10 m/s at a launch angle of 30. Calculate its total flight time, assuming that air resistance is negligible.(A) 0.5 s(B) 1 s(C) 1.7 s(D) 2s(E) 4s9. A stone is thrown horizontally with an initial speed of 30 m/s from a bridge. Find the stones total speed when it enters the water 4 seconds later.(Ignore air resistance.)(A) 30 m/s(B) 40 m/s(C) 50 m/s(D) 60 m/s(E) 70 m/s10. Which one of the following statements is true concerning the motion of an ideal projectile launched at an angle of 45 to the horizontal?(A) The acceleration vector points opposite to the velocity vector on the way up and in the same direction as the velocity vector on the way down.(B) The speed at the top of the trajectory is zero.(C) The objects total speed rem