PHYS 218 Midterm: Texas A&M Physics 218 Exam1_Spring_2011_solutions
Document Summary
Fill out the information below but do not open the exam until instructed to do so! All work must be shown to get credit for the answer marked. Put your initials here after reading the above instructions:__________ Table to be filled by graders only! Bonus (5) (actually 6 points) Part 1: basic ideas of units, conversions, and vectors. Problem 1. 2: pascal, bar and psi are units of pressure defined as: = 145 10- 6 psi. Question 1. 2. 1: (4p) express 290 psi in units of pascals. Problem 1. 3: the following plot shows the position x as a function of time. The magnitude of the velocity at a given time is the magnitude of the slope of the tangent line in the above graph at that given time. The slope at time range b is about +2 squares/2 squares, with a magnitude of +1. The slope at time range e is about -4 squares/2 squares with a magnitude of -2.
