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1. How to Approach Multiple-Choice Questions
The format of the multiple-choice questions will be the same.
It may seem like there could be more than one correct answer.
There will be two correct answers per question for the last 5 problems of the multiple choice section.
This section is identified before you start.
Common mistakes are included in the answers to trap you.
For the multiple-choice section, you write your answers on a separate answer sheet, similar to the ones we've supplied at the end of the book.
The question number is followed by four answer bubbles.
Don't forget to include your answers in the answer sheet.
They should not be marked in the test booklet.
The test booklet won't be graded.
Check your answer sheet after every five answers to make sure you don't miss any bubbles.
The exam covers a lot of topics.
Even with our extensive review, you won't know everything about every topic in physics.
A two-pass system is recommended.
Answering the easy questions first is what the two-pass system entails.
The questions should be saved for later.
Determine if the question is a "now" or "later" question by reading it.
If you think this is a "now" question, answer it in the test booklet.
Come back to it if it is a later question.
Transfer the answers to your bubble sheet after you've finished all the "now" questions.
If you want to repeat the process, flip the page.
After you've finished all the "now" questions, move on to the "later" questions.
The correct answer does not jump out at you immediately, so these are the ones that require you to eliminate the answer choices.
As soon as you answer these questions, transfer your answers to your bubble sheet.
Because you're skipping problems, you need to keep an eye on the bubbles on your answer sheet.
Answering all the questions on a page will transfer your choices to the answer sheet.
If you want to enter them one by one, make sure you double check the number next to the ovals.
The AP Physics 2 Exam will expect you to know how to use graphs, data tables, and mathematical relations to represent the outcome of an experiment.
You are given an equation sheet for the multiple choice portion of the exam.
You should know what graphs of these equations look like, but most of the time you will be asked which variables need to be graphed to produce a direct proportion.
There are several data that would produce a linear graph.
If Fel and Q 1 are data, a graph of Fel versus Q 1 will produce a linear plot with a slope of Q 1 Q 2.
Linearization is the process of making a linear graph for data or an equation.
To get the right answer on most tests, you need to know your material backwards and forwards.
You probably won't answer the question correctly if you don't know the answer.
This is also true of fill-in-the- blank questions.
We're taught to think that the only way to get a question right is to know the answer.
That's not the case on Section I of the exam.
POE can be used to increase your chances of scoring.
The multiple-choice section of the exam uses this technique the most.
Let's look at an example.
A gas goes through an expansion-compression cycle.
You might be in a lot of trouble if this were a fill-in-the-blank-style question.
Let's take a look at what we have.
We can get closer to making an educated guess if we can eliminate a few of the answer choices.
The magnitude of the work and heat transfer have to be the same.
The eliminations are (C) and (D).
The heat transfer is negative since the cycle is counterclockwise on a P-V diagram.
A heat leaving the system is called a negative heat transfer.
The choice is correct.
Process of elimination is the best way to approach multiple choice questions.
Even if you don't know the answer right away, you will know that two or three of the answer choices are not correct.
You are scored only on the number of questions you get right, so we know guessing can't hurt you.
If you guess on four questions, chances are you'll get one right.
You have increased your score by one point.
Let's add POE to the equation.
If you can eliminate two answer choices from each question, your chances of getting them right increase, and so does your overall score.
It can be difficult to answer 50 multiple-choice questions in 90 minutes.
You don't need to answer every question correctly to do well, so pace yourself accordingly.
For 45 of your 50 multiple-choice questions, there are three wrong answers and only one correct one, so even if you don't know which one is the right answer, you can still take it.
You can make an educated guess from the answers left and increase your odds of getting the question correct.
Problems with graphs and diagrams take the longest to work through and are usually the fastest to solve.
If you spend too much time on one problem, you may not get to easier problems in the test.
The practice exams are written to give you an idea of the format of the test, the difficulty of the questions, and to allow you to practice pacing yourself.
Take them in the same way you would take the real exam.
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