PHYSICS 2091Unit 2 Progress Check: MCQ Part 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?