PHYSICS 2091 Unit 2 MCQ Part A QUESTIONS AND ANSWERS 2022/2023| GRADED A

Unit 2 Progress Check: MCQ Part A Copyright © 2017. The College Board. These materials are part of a College Board program. Use or distribution of these materials online or in print beyond your school’s participation in the program is prohibited. Page 1 of 18 1. A object is released from rest near the surface of a planet such that its gravitational field is considered to be constant. The mass of the planet is unknown. After , the object has fallen . Air resistance is considered to be negligible. What is the gravitational force exerted on the object near the planet’s surface? A B C D 2. A block of mass is attached to a modified Atwood machine and is accelerated upward at by a constant force . What is the weight of the block? AP Physics 1 Scoring Guide Unit 2 Progress Check: MCQ Part A Copyright © 2017. The College Board. These materials are part of a College Board program. Use or distribution of these materials online or in print beyond your school’s participation in the program is prohibited. Page 2 of 18 A B C D Block A is placed on a rough surface inclined at an angle θ above the horizontal. A taut string connects block A over a pulley to block B, which hangs from the string, as shown below. The masses of blocks A and B are MA and MB, respectively. At time t=0, block A is sliding up the slope as block B falls, and the blocks are both slowing down. Assume that the mass and friction of the pulley are negligible. 3. If the mass of block is , the gravitational force exerted on block is most nearly which of the following? AP Physics 1 Scoring Guide Unit 2 Progress Check: MCQ Part A Copyright © 2017. The College Board. These materials are part of a College Board program. Use or distribution of these materials online or in print beyond your school’s participation in the program is prohibited. Page 3 of 18 A B C D It is impossible to determine without knowing the mass of block . 4. The two blocks eventually stop and reverse direction. Which of the following graphs best predicts the acceleration of block as it moves up and down the rough, inclined surface? Assume that the positive di