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CONS 127 Midterm Exam W1 2024- Requires Respondus LockDown Browser|Questions and Answers with complete solutions:University of British Columbia

HEAL100 Health Care — exam and revision material · Other

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Health Care exam material, 7 pages. Originally published on StudyMerit.

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7
Academic year
2025/2026
Language
English

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CONS 127 Midterm Students also studied Science Earth Science Cartography Save Groups Cons 127 Midterm 51 terms corregaard Preview CONS 127 Midterm 145 terms chloe_dean687 Preview EOSC 110 Midterm One 86 terms austenperry Preview Lecture 6 terms man Latitude horizontal lines angle that describes the north south position Longitude vertical lines angle that describes the east west position Prime Meridian Greenwich origin of the measures of longitude (0 degrees of longitude) Parallel circle connecting all locations with a given latitude 3 ways the earth's shape can be mathematically defined sphere, ellipsoid, geoid The only correct representation of the Earth's surface geoid Equivalent projection + example allows for comparing the surfaces of the Earth within the map, since the areas of the continents are accurate the shapes of the continents are distorted ex. Mollweide or Gall-Peters

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Conformal projection + example the angles between positions are preserved so that ships can navigate from place to place and know how far it is going to be from where they are land area is distorted ex. Mercator Considering the case of Africa and Greenland, describe how map projections might influence the perspective of the map viewer? mercator projection is not an equal-area projection and distorts the relative size of landmasses, exaggerating the poles How was the metre first defined? one ten-millionth the size from the length of the equator to the North Pole How is the metre defined now? defined as the length that light travels in a fraction of a second The name of the unit that is equal to 1000nm 1 micrometre Small scale map covers a more area, but with not as much as detail Large scale map covers a small area but with great detail and accuracy Two ways scale can be indicated on a map bar scale ratio scale What kind of map scale would be appropriate for representing large countries and/or continents? For a city? For a neighbourhood? 1:2000 (large scale... ) is suitable for a neighborhood and the smaller the scale gets it gets, the more suitable it is for covering extensive landmasses. Scale of 1:2,500,000 shrinks things to be the so small, its used to cover very large extents 3 devices that can measure distances at different scales microscopes, telescopes and satellites Relative positioning when you give someone directions by using where the location is close to, street names, addresses, etc. also called dead-reckoning Absolute positioning using latitude, longitude and/or coordinates to show where a location is also called position fixing Geodetic marker a way of mapping the Earth's surface give us accurate information on their relative and absolute position, and by triangulation, the points are used to find other points In ocean navigation, which is easier to calculate, latitude or longitude? Latitude is easier to calculate because you can use the stars to measure your position The critical measurement to obtain an accurate longitude time

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Orbit a curved path around an object in space (celestial object) created by gravitational attraction between two objects Space an area of low air pressure and density that is hundreds of kilometers up into the sky and atmosphere The type of orbit that would be used to monitor weather geostationary orbits The type of orbit is used for GPS tracking far elliptical orbit Orbit best for getting to and returning from space easily Low earth orbit Most remote orbit type sensing satellites, why? far elliptical orbit 3 types of satellites (performing different functions) that use geostationary orbits TV. Cellphone, Weather. What does GNSS stand for? geostationary navigation satellite system What does GPS stand for? Global positioning satellite GPS is actually the USA's version of a GNSS system Min. number of satellites needed for an accurate positional location 3 to find a positional location, but 4 is preferred for a truly accurate measurement 2 key types of information sent by GNSS satellites to receivers that allow for the determining of position almanac ephemeris Causes of 2 different types of dilution of position error and how those errors can be minimized error be minimized by a differential GPS, which uses a reference station error can be minimized by position of satellites and obstructions How is the distance form a GNSS satellite to a receiver measured? calculation of the speed of light when signals get to the receiver, it allows for a calculation of distance between the satellite and the receiver Type of error is caused by GNSS signals bouncing off of objects near receiver multi path error Assisted GPS uses cellular network towers to pass info about its location and satellites locations to the receiver Differential GPS requires an additional receiver in a known position which is called a reference station Spatial errors expected with a phone based GPS accuracy ranges from 3-15 m

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