Latitude
Latitude is measured in these two directions.
What is North or South?
Longitude is measured in these two directions.
What is East and West?
The acronym GPS
What is Global Positioning System?
An object’s change in position relative to a reference point
What is motion?
Locations or landmarks that can be stored in your GPS.
What are waypoints?
The origin for latitude is...
What is the equator?
The origin for longitude is...
What is the Prime Meridian?
The GPS Operational Constellation consists of this number of satellites.
What is 24?
The formula for distance
What is Distance = Velocity x Time?
Sometimes the GPS signal from the satellite doesn’t follow a straight line. This is the bending of light as it travels through one media to another.
What is refraction?
Lines of latitude run in this direction.
What is East/West?
The point of origin for longitude runs through this location.
What is Greenwich, England?
The GPS satellites orbit schedule of the Earth
What is twice a day?
The straight line from the starting point directly to the ending point
What is displacement?
The ability to draw a straight line between two objects without any other objects getting in the way.
What is line-of-sight transmission?
The degree range for measuring lines of latitude
Both are acceptable...
-What is 0-90?
-What is -90-90?
The direction for longitude -25.4570
What is West?
GPS satellites use these for accuracy, but because of the expense, most GPS receivers do not.
What are atomic clocks?
A system for specifying the precise location of objects in space and time
What is point of reference?
A way of locating a point based on how far away it is from three other points.
What is trilateration?
The direction of these latitudes:
-20.7800, -90.0000, 82.3600
What are South, South, and North?
The location of 0.000, 0.000
What is the intersection of the equator and the Prime Meridian?
Describe the GPS signals transmission speed. (Be specific.)
What is signals move at the speed of light which is about 300,000,000 meters per second?
The difference between speed and velocity (Be specific and give an example with your answer.)
•Speed describes how fast an object moves measured in m/s (meters per second)
•Velocity describes speed and direction and is measured in m/s + direction (i.e. North, South, East, West, etc.)
The GPS receiver compares the time a signal was transmitted by a satellite with the time it was received. This tells the GPS receiver how far away the satellite is.
What is the time difference?