Light is transmitted via waves of different wavelength and frequency (perceived as color). Light is refracted when it passes from one medium into another and different wavelengths of light bend at different angles. When light is reflected from a surface the angle at which light strikes the surface is always equal to the angle at which it is reflected.

**My recruiter told me about this book so I ordered it and got it 3 days later from the Military Bookstore. I got this book and it is awesome. The cd works great and every thing I needed and more to help me was in there. I recommend this book to everyone who is thinking of going in the service and wants to get a real job! GET THIS BOOK AND SCORE HIGH!!!!”**

The military has used the Armed Services Vocational Aptitude Battery (ASVAB) for the last 40 years to place soldiers into careers and to determine whether or not a soldier could follow directions and be trained. The military says the ASVAB is a useful measure of future academic and occupational success in the military -- if a solider can read it. Testers must understand the ASVAB’s long list of abbreviations if the test itself is to be used to its best advantage.

**The results of each test are shown as soon as you complete it. You’ll see what you got right and how it compares to other people who took the same test. Feedback is also visual, showing your percentile and success on each question compared to others. The answers to each ASVAB practice test question are explained as well. The free ASVAB example questions are both tools for learning and for comparing your results to your own previous attempts, and to the scores of your classmates and peers. You can use the scores as a baseline and to identify your weaknesses. With this information, it becomes easier to focus your study time and effort on areas that need improvement.**

Barron's ASVAB is our 2nd overall prep book on our list of the best practice books. One strong point of Barron's is that the theory review and explanations are very detail-oriented and thorough. This thoroughness really helps you to absorb everything that you need to know for the exam. Learning from your mistakes is crucial, and this review guide really allows you to do just that.

###### Whenever possible, military personnel (active duty, National Guard, and reserve) will arrange to take the in-service ASVAB from your service’s Test Control Officer at a military installation; however, on a case-by-case basis, Military Entrance Processing Station (MEPS) commanders may authorize administration of an ASVAB for in-service purposes at their MEPS. You must submit a memorandum from your unit commander requesting the MEPS to administer an ASVAB. The memorandum must include;

**You’ll find a great practice test and lots of other information about the ASVAB at the Department of Defense's ASVAB Career Exploration Program site (ASVABprogram.com). Since your test scores can have an impact on your Military Occupational Specialty (MOS)—and whether or not you can attend certain special schools (like Airborne school, Sniper school and many others)—we recommend you make the most of these additional resources.**

^{The doppler effect is generated when the source or the observer of sound is moving. When a sound is approaching an observer its frequency appears to increase as it gets closer and change as it passes the observer and moves away. This characteristic is what makes radar and sonar effective in indicating the size of and distance to an object via measuring reflected sound. }

CliffNotes has a pre-test and post-test for every section in the book including numerous practice problems for each type of math question. By the time you finish this book, you will have covered hundreds of math problems including some of the most common problems found on standardized tests. Although this book was not written exclusively for the ASTB many of the questions found

# The Mathematics Knowledge section of the exam measures your knowledge of various math areas, such as algebra and geometry. You may be asked to find the square root of a number or the volume of a brick with given dimensions. Algebraic problems may require finding the value of “y” in a given equation. A review of math symbols—such as ≠, ≤, and √—can help you solve the given problems much faster, and using our ASVAB math study guide to practice answering the algebra and geometry questions on the test can help increase your overall AFQT score. The CAT-ASVAB has 16 questions in 20 minutes; the paper-and-pencil version has 25 questions in 24 minutes.

*The sections are as follows, General Science, Arithmetic Reasoning, Word Knowledge, Paragraph Comprehension, Mathematics Knowledge, Electronics Information, Automotive and Shop Information, Mechanical Comprehension, Assembling Objects and a Verbal Expression score influenced by the Word Knowledge and Paragraph Comprehension sections of the test. Those looking to join the Navy also complete a Coding Speed test.*

_{The various armed forces adopted all of those aspects in 1976. At that point in time, the test was in its written form rather than today’s more common form (computerized test format). The written form covers all of the previously mentioned areas as well, which is why both forms are still available. All-in-all that answers the question concerning the intention of the test. }