Waves are described in terms of their height, wave-length, and period. “Height” is the vertical distance between the high point of a wave crest and the low point of the adjacent trough. “Wave-length” is the distance from one crest to the next, and “period” is the time it takes two adjacent crests to pass a fixed point, such as the end of a pier. The mathematics of wave theories are usually concerned with relationships between these and related characteristics.
The ASVAB test is administered to potential military recruits to help determine which branch of service and which military jobs they will be best suited for. It is not a test of intelligence and is administered only in English. The test consists of nine subjects: General Science, Arithmetic Reasoning, Word Knowledge, Paragraph Comprehension, Mathematics Knowledge, Electronics Information, Auto and Shop Information, Mechanical Comprehension, and Assembling Objects.
Many high schools give students the opportunity to take the ASVAB as part of career exploration. If you chose not to take one in high school, then you will have to schedule a time to take it. You can contact the Armed Forces Recruiting Officer in your area and you can schedule an appointment with a local recruiter from the branch of the military you wish to join.
The ASVAB also known as the Armed Services Vocational Aptitude Battery is a test that measures your aptitude which is how well you do something.  A common mistake by most people is thinking that it is a measure of you IQ. Many people either forget this or don’t know this and they get worked up about the exam.  Saying that, it is also important to take a ASVAB sample test to insure you know what type of questions will be asked.    Another thing to keep in mind is every person in the armed forces has to take the exam and you are not being called out to take it. 
It is critical to know how ASVAB scores are calculated and what they are used for.  The Armed Services Vocational Aptitude Battery (ASVAB) tests are used to identify whether a candidate is qualified to enlist in a particular branch of the U.S. Military.  The ASVAB test is also used to determine which military jobs (referred to as MOS for Military Occupational Specialties) a candidate is best suited for.  ASVAB scores can also be used by test takers to help explore which careers they may be a good fit for them – whether they go into the military or not. While no one officially passes or fails the ASVAB, each branch of the military has specific minimum scores required for enlistment.  Your scores also affect the type of military job, enlistment bonuses and salary you are eligible for.
Centrarse en las subpruebas que le importan. Si usted tiene un claro interés en seguir una carrera en la electrónica, la subprueba de Información Electrónica debe estar en la parte superior de su lista de ACE. Aunque usted querrá asegurarse de que todos sus puntuaciones de línea son buenos (en caso de que una nueva formación o su trabajo deseado no está disponible), se centra en su experiencia en ciertas áreas de interés que un candidato hace más deseable.
The paper-and-pencil version of the test administered at a Mobile Examination Test (MET) site usually takes 3–4 hours. The time needed to take the CAT-ASVAB test can vary. The test is adaptive. If the candidates answer a question correctly, they are given one of increasing difficulty. If the candidates miss a question, they are subsequently given an easier item. This pattern continues until the test is finished. Because of its adaptive nature, the CAT-ASVAB test generally takes about half the time of the paper-and-pencil version.

High school and postsecondary students can also take the ASVAB test as part of the Department of Defense’s Career Exploration Program. This paper-and-pencil version of the test is the same as the paper-and-pencil enlistment version but excludes the Assembling Objects section. It is intended to help those students considering a career in the military to discover their strengths in both military and civilian jobs. If the student scores high enough in the AFQT section of the test, he may use the score to enlist within the two-year expiration window.
Existen muchos libros para satisfacer sus necesidades individuales de estudio. Barron "Preparación para el ASVAB" es una extensa guía de 500 páginas. "ASVAB" de Kaplan no es sólo una guía, sino que también da una visión y orientación de los oficiales veteranos. McGraw Hill "ASVAB" y ARCO de "Maestro del ASVAB" son herramientas útiles, y "ASVAB para los maniquíes" está escrito en un formato fácil de usar.
El ASVAB está disponible en diferentes formas. Cada uno de ellos se utiliza de manera ligeramente diferente. La versión institucional de la prueba se utiliza en las escuelas secundarias, y los resultados del ASVAB de esta versión se utiliza para ayudar a los consejeros escolares guían a los estudiantes apropiarse de las trayectorias profesionales. La versión computarizada de la prueba es el examen completo y es utilizado por los militares para ayudar a determinar la elegibilidad de una persona para los militares, así como qué tipo de formación es el más apropiado. Una versión corta de la prueba puede ayudar a decidir si una persona es rey para tomar ASVAB completa, y repita la prueba después de la inscripción puede ayudar a determinar la elegibilidad para entrenar para diferentes puestos de trabajo.
After adding so much information to the aptitude test, there was a bit of difficulty interpreting the test results. In addition to that, a vast majority of test takers were deemed as being under qualified based on their test results. This is why the percentile change was made. It ensured that a 50% actually correlated with a person doing better than 50% of the test takers. Those revisions have worked hand-in-hand with the preparation of the armed forces.