A common misconception about physics is that all the problems are about equations. Actually, the problems that require the greatest understanding are those that use other representations. By representation, we mean things such as graphs, diagrams, and sentences as well as equations. In studying physics, it's important to gain fluency in using multiple representations. This assignment below requires you to provide explanations in sentence form. 

Here's a guide to how the teacher evaluates your answers to the conceptual questions.

Consider question 2 on p. 46 of your text:  "Does an odometer in a car measure distance or displacement?"

Here's a poor answer:  "distance" 
(One word answers are rarely acceptable. This answer would receive 0 points.)

Here's a better answer:  "distance, because the reading always increases" 
(This isn't a complete explanation. It would receive half credit.)

Here's a good answer:  "An odometer measures distance, because the reading always increases no matter what direction you're traveling." 
(This answer is a complete thought, and it's also correct. It would receive full credit.)

Here's an incorrect answer:  "An odometer measures displacement, because the reading can increase or decrease depending on which direction you're traveling."
(This answer would receive most of the credit. The student doesn't know how an odometer works, but they do understand the difference between distance and displacement.)

Now do the assessment E.2.3 on WebAssign. The questions are taken from the Conceptual Questions at the end of Chapter 2 of your textbook.

Study Tip.  Answers to the odd-numbered Conceptual Questions are given in the back of your textbook. You can use these to gain practice in answering such questions, because you get immediate feedback by comparing your answers to the textbook answers. Be sure to try some of the odd-numbered questions before you do the questions in the assignments that the teacher evaluates.