Contents

## Measurement in Physics SI units as long as Physics Example Dimensional Analysis Trigonometric Functions

Rahn, Beverly, Food and Book Review Editor has reference to this Academic Journal, PHwiki organized this Journal Measurement in Physics AP Physics B SI units as long as Physics The SI st in addition to s as long as “System International. There are 3 fundamental SI units as long as LENGTH, MASS, in addition to TIME. They basically breakdown like this: Of course there are many other units to consider. Many times, however, we express these units with prefixes attached to the front. This will, of course, make the number either larger or smaller. The nice thing about the prefix is that you can write a couple of numbers down in addition to have the unit signify something larger. Example: 1 Kilometer The unit itself denotes that the number is actually larger than “1” considering fundamental units. The fundamental unit would be 1000 meters Most commonly used prefixes in Physics Tip: Use your constant sheet when you as long as get a prefix value

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Example If a capacitor is labeled 2.5mF(microFarads), how would it be labeled in just Farads The FARAD is the fundamental unit used when discussed capacitors! 2.5 x 10-6 F Notice that we just add the factor on the end in addition to use the root unit. The radio station XL106.7 transmits at a frequency of 106.7 x 106 Hertz. How would it be written in MHz (MegaHertz) A HERTZ is the fundamental unit used when discussed radio frequency! 106.7 MHz Notice we simply drop the factor in addition to add the prefix. Dimensional Analysis Suppose we want to convert 65 mph to ft/s or m/s. Dimensional Analysis is simply a technique you can use to convert from one unit to another. The main thing you have to remember is that the GIVEN UNIT MUST CANCEL OUT. Trigonometric Functions Many concepts in physics act at angles or make right triangles. Lets review common functions.

Example A person attempts to measure the height of a building by walking out a distance of 46.0 m from its base in addition to shining a flashlight beam toward its top. He finds that when the beam is elevated at an angle of 39 degrees with respect to the horizontal ,as shown, the beam just strikes the top of the building. a) Find the height of the building in addition to b) the distance the flashlight beam has to travel be as long as e it strikes the top of the building. Example A truck driver moves up a straight mountain highway, as shown above. Elevation markers at the beginning in addition to ending points of the trip show that he has risen vertically 0.530 km, in addition to the mileage indicator on the truck shows that he has traveled a total distance of 3.00 km during the ascent. Find the angle of incline of the hill.

## Rahn, Beverly Food and Book Review Editor

Rahn, Beverly is from United States and they belong to Mature Life Features and they are from San Diego, United States got related to this Particular Journal. and Rahn, Beverly deal with the subjects like Books and Literature; Calendar News; Features/Lifestyle; Food

## Journal Ratings by Strayer University-Delaware County Campus

This Particular Journal got reviewed and rated by Strayer University-Delaware County Campus and short form of this particular Institution is PA and gave this Journal an Excellent Rating.