Grids
What are the vertical lines called?
What are the horizontal lines called?
Eastings
Northings
What is a contour line?
Shows elevation or height
What is a map scale?
Map scale shows the relationship between the distance on a map and the actual distance on the Earth’s surface.
What is latitude?
Measures distance north and south of the Equator
How many time zones does Canada have? Which time zone are we in?
6
Eastern Standard Time Zone
What are the 3 types of grids called?
Alphanumeric, 4 digit reference numbers, 6 digit reference numbers
What do the contour lines mean when they're farther apart compared to when they're closer together?
What do the top and bottom lines mean on a linear scale?
Top lines = distance on map
Bottom lines = distance on Earth's surface
What is longitude?
Measures distance east or west of the Prime Meridian
How do we calculate different time zones?
If moving east = add an hour
If moving west = subtract an hour
If moving to/out of NFL, it is only a HALF HOUR
What do the coordinates D1 mean on an alphanumeric grid?
D represents the y-axis, 1 represents the x-axis
What is a contour interval?
Difference in elevation between each line
What kind of scale is this and what does each measurement mean: 1:50,000
Representative fraction scale, 1 = distance on map, 50,000 = distance on earth's surface
When asked to locate coordinates of latitude and longitude, how must you write them?
60° N, 30° W
Latitude first, then longitude
What are the 4 main points on a Compass called? What are the other points on a Compass called?
Cardinal Points (N, E, S, W)
Compass Bearings (Ex: NE, SW, SSE)
What do each of the following numbers mean: 2342?
23 = x-axis, 42 = y-axis
What is an index contour line?
Every 5th contour line that is printed darker and has an elevation printed on it
How do you convert this DS Scale: 1 cm = 5 km into a RF scale?
Move 5 decimals to the right
1:500 000
What is the International Date Line? Where is it located?
It is where the start of each new day begins
Located at 180° Longitude
If it is 4:15pm in Ottawa, Ontario, then what time is it in Edmonton, Alberta?
Move west 2 time zones = 2:15 pm
What do each of the following numbers mean: 315427?
31 = x-axis, 5 = eastings, 42 = y-axis, 7 = northings
If the contour interval is 5 metres, and there are 10 contour lines, what is the highest point of elevation?
50 metres
How do you convert this RF scale: 1:250 000 into a DS Scale? What if the total measurement for "A" is 5.8 cm?
Move 5 decimals to the left
1 cm = 2.5 km
5.8 cm = 14.5 km
What do the Equator and Prime Meridian have in common?
They divide the Earth into hemispheres, and are both located at 0°
If it is 9:15am in Vancouver, BC, then what time is it in St. John's, Newfoundland?
Move east 5 time zones (NFL is an exception*)
1:45pm