# Physics Test with answer

Jun 17th, 2015
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1. When can you treat a moving object as if it were a point-like particle?A) Only if it really is a point-like particle.B) You can always treat a moving object as if it were a point-like particle.C) Only if the object is moving with constant acceleration.D) Only if all parts of the object are moving in the same direction and at the same rate.

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Chapter: Chapter 2Learning ObjectivesLO 2.1.0 Solve problems related to position, displacement, and average velocity to solveproblems.LO 2.1.1 Identify that if all parts of an object move in the same direction and at the same rate, wecan treat the object as if it were a (point-like) particle. (This chapter is about the motion of suchobjects.)LO 2.1.2 Identify that the position of a particle is its location as read on a scaled axis, such as anx axis.LO 2.1.3 Apply the relationship between a particles displacement and its initial and finalpositions.LO 2.1.4 Apply the relationship between a particles average velocity, its displacement, and thetime interval for that displacement.LO 2.1.5 Apply the relationship between a particles average speed, the total distance it moves,and the time interval for the motion.LO 2.1.6 Given a graph of a particles position versus time, determine the average velocitybetween any two particular times.LO 2.2.0 Solve problems related to instantaneous velocity and speedLO 2.2.1 Given a particles position as a function of time, calculate the instantaneous velocity forany particular time.LO 2.2.2 Given a graph of a particles position versus time, determine the instantaneous velocityfor any particular time.LO 2.2.3 Identify speed as the magnitude of the instantaneous velocity.LO 2.3.0 Solve problems related to acceleration.LO 2.3.1 Apply the relationship between a particles average acceleration, its change in vel

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