Notice of Assessment Task Preliminary Course in Physics Date of Initial notification: 1/2/2013 | Date of submissionTerm 1 Week 5 | Task Number: One – Research | Time Allowed:2 weeks | Weighting of Task: 15% | Course component / Focus area / Topic Module:Module1: The World Communicates | Task Description:The world communicates by making extensive use of the electromagnetic spectrum. For the average person this is commonly accessed using radio waves. These radio waves may be over the AM or FM radio wave bands or the radio waves that transmit our television signals. Not only are people always within a ‘phone call of each other anywhere in the world they are also able to find out exactly where in the world they are by use of …show more content…
strating the energy transformations involved in the process * outlines what frequency modulation or amplitude modulation is | Question | Outcome | Marks | Criteria / Answer | Part B | | 20-17 | * shows evidence of information on GPS’s from a brochure and a scientific source * accesses the scientific accuracy of the brochure by identifying areas of comparison in both publications noting any relevant missing information gives supporting statements for the assessment * evaluates the validity of the information in the brochure and gives supporting statements for the assessment * presents clear relevant drawings that show how waves are used in GPS’s * identifies how the properties of waves that make them useful for this type of technology * identifies some current research into the future development of GPS’s | | | 16-13 | * shows evidence of information on GPS’s from a brochure and a scientific source * accesses the scientific accuracy of the brochure by identifying areas of comparison in both publications gives supporting statements for the assessment * evaluates the validity of the information in the brochure and gives supporting statements for the assessment * presents relevant drawings that show how waves are used in GPS’s * identifies how the properties of waves that make them useful for this type of technology * identifies some current research into the future development of GPS’s | | | 12-9 | * shows evidence of information on
If they do not, but are within the acceptable margin of error of ±20√4=±40’’, each angle is corrected to create a sum of 360˚. For this project, the angles added to 360˚ 00’ 10’’. After each angle is corrected, angle 412 is 78˚31’03’’, angle 123 is 99˚01’23’’, angle 234 is 92˚32’21’’, and angle 341 is 89˚53’13’’. After using the Total Station, the Auto level is used to measure the elevations of each point. The known elevation outside of Powell is 380’. The Auto level is placed between each point to measure the backsight and foresight. Once all the points are measured, all the backsights and foresights can be measured with the difference taken to find the error. With this project, the error was -0.128’. Next, the pacing between each point must be taken to find the correction for each elevation with the equation, (distance from known elevation/total level network distance) X total error. The total pacing for the project is 235 steps with a pace of 2.31 feet per step. After the corrections, point 4 is 379.384’, point 3 is 378.182’, point 2 is 379.093’, and point 1 is 379.645’. A transit is used to find the true north from the magnetic
He used a hand bearing compass, pointed at a lighthouse or some other landmark and looked across the lubber’s line into the bowl, taking bearings of two or more objects, and reading the direction or bearing of that object, off of the compass. Then, he plotted them onto his chart. Where the lines crossed, was where he was. It was that simple. The GPS was for his clients. It made them feel better, not him.
This week around the time of the Atlas Five launch, the Colorado’s aerospace industry is celebrating a milestone this week, the twentieth anniversary since the Global Positioning System (GPS) emergence was announced at Full Operational Capability on July 17, 1995. On Friday, is the day twenty years ago, the GPS make its dent in technological history.
GPS gives the distance without calculation and gives you idea of the weather condition. Quadrant is a down grade to the Gyroscopic Compass. Quadrant helps you find the north but can be effect but earth magnetic field. The Gyroscopic Compass is always pointing to the real northern star and dont use the earth magnetic field to find the northern star. Sunglass was more harder to to keep up with time you had to turn the glass every hour. The ditigal clock is hand free and you dont have to turn it every hour. Columbus had to use his own eye site to delect something but he could only see so far. Radar of would delected something miles away without having to keep watch 24/7 of ships surrounding. Columbus got off course often and had to correct himself but with Long Range Navigation Columbus could of found where his Ship was and got back on course. If Columbus had a Depth Sounder he would of be able to see under the water to make sure he didnt hit nothing and even could see the fish under the water for Columbus could catch them for
Ever since man has been observing their surroundings, there has been a desire to go to the far reaches of our earth and out of our earth. Global Positioning Systems, or GPS, has allowed an easier way for people to know where the user is on our earth and to know that we put something into space.
The development of the Global Positioning System, GPS for short, was accelerated by Sputnik in more than one way. When Sputnik launched, Guier and Wieffenback were able to measure the doppler shift in the signal that was broadcast from Sputnik and successfully estimate the location of Sputnik. After telling their Laboratory’s Director about their discovery they were granted
When Hess decided to hold off on his geological study to be a reserve officer during World War Ⅱ, he carried equipment for sounding the ocean floor on his ship. This sounding gear bounces sound waves off the seafloor to determine the underwater topography. Today people use vessels like they did in the 1900’s, but today people use more developed tools. Today a person might use a GIS (geographic information system). This technology makes out maps, these maps show up on a computer screen.
Energy is a very important property, it can only be conserved. Energy can’t be created or destroyed, but it can be transferred between objects. Kinetic energy is in the form of motion, sound waves, and or heat. For example, kinetic energy could be the heat from the use of the phone during the day or as the phone falls to the floor. Where as potential energy is the energy that is stored for later use. An example of potential energy would be chemical energy in the battery of your phone or light from the screen of your phone. In addition, law of conservation of energy is energy that is not created or destroyed but just changes form. An example of this would be when you drive your car; you convert chemical energy into mostly mechanical and thermal energy.
The Troposphere has atoms and molecules which affect the radio waves between the satellite and the receiver. Due to the amount of gas present in this area group velocity decreases and the Zenith angle contributes to the troposphere refraction. The lower the zenith angle the more affected is the tropospheric refraction. Ionosphere and Troposphere has an influence on pseudo range and Carrier phase measurement because of electrons present in this region that obstruct the signal waves from the rover to the satellite, (Parker, 2003). Virtual Reference system with the GPSNET software is able to model these errors and thus the errors are reduced. The Troposphere is non dispersive for frequencies below 30 GHz, however the Troposphere adds a slight distance to the range measurement.
This essay examines the question: How does GPS rely on geometry and trigonometry now that there are satellites? Has the function of geometry and trigonometry in triangulation and navigation changed since satellites were
A site, once home to industrial activity, has been marked as an area that may be causing environmental damage to a nearby river. Since the industry has ceased, all of the buildings have been removed and the only features of the site now lie beneath the surface. A brine tank is buried on the site although its exact location is unknown along with cables and pipes. It is possible that the tank is leaking, allowing brine to flow untreated into a freshwater fishing lake. The best method to discover if this is the case, is to use a GPR survey of the area to discover the position and condition of the brine tank. To do this, surveying will take place along lines with a 5m spread to be certain that the brine tank will be found. As the tank is known to be close to the surface, an antenna of a high frequency will be used. The survey will produce a radargram which can be interpreted for the final results. Following surveys such as boreholes
If you choose a handheld that is rated for motorcycle use or marine use, you should be safe to get it wet in the shower or when out in the rain for an extended period of time. Though in some cases, you may need to dry it when you come out of the water. In a situation where you want to go diving with it, you will want to make sure that it is safe for the amount of time and depth that you plan to be diving into. Each handheld GPS will have its own abilities. You need to look carefully to see what your GPS system is able to handle because we know you do not want to take it out into open water, only to have it leave you still having to search for your way back
GPS is an important measure used in field surveys to accurately determine the position of a site. In this case, it was used to map the Capel Dewi MST mast array. At each mast on the border of the array, a measurement was taken in order to obtain a grid reference. The reference point was set up and coordinated accurately, and post processed accordingly. The data was then collected around the array and was repeated with three different rovers to measure precision and view the effects of using a different satellite system; the first two were ******** receivers and the third was a GLONASS receiver. The third rover was unable to obtain data on one side of the field as bushes were blocking the satellite signal. Data was spliced into the original data set to make up the shortfall. The precision of the data varies across the field, generally with a higher precision closer to the reference point. This is caused by points further away from the reference points going through the same post processing as the reference point, and as its true position is further from the reference point, the post processing is less accurate. However, there is some degree of variation from point to point depending on the position of the rover as the measurement was taken.
GPS tracking for all types of assets help fleet managers monitor expensive machinery. The tracking devices are typically rugged, sealed from the environment, and can handle a
The accuracy of this technique is very low due to the fact that cell towers can support ranges of 35 kilometers or more.