Understanding Latitude and Longitude

The video tutorial explains how to uniquely locate positions on Earth's surface using the spherical coordinate system of latitude and longitude. It describes the concepts of the equator and prime meridian as reference axes and explains how angles are used to measure distances on a sphere. The tutorial also covers the properties of longitude and latitude lines, demonstrates locating a specific point (Upheaval Dome in Utah), and discusses the use of nautical miles in marine navigation.

What is the primary purpose of using a spherical coordinate system on Earth?

• To measure the distance between two points

• To uniquely locate positions on Earth's surface

• To calculate the area of a region

• To determine the altitude of a location

What is the Prime Meridian used for in the coordinate system?

• As the vertical axis

• As a reference for measuring latitude

• As a reference for measuring altitude

• As the horizontal axis

How many degrees is a complete circle in the context of longitude?

• 360 degrees

• 270 degrees

• 180 degrees

• 90 degrees

What is the main characteristic of latitude lines?

• They run from pole to pole

• They are parallel to each other

• They intersect at the equator

• They are not equal in circumference

What is the latitude of the North Pole?

• 0 degrees

• 180 degrees

• 90 degrees

• 45 degrees

What are the coordinates of Upheaval Dome in Utah?

• 38 degrees North, 109 degrees West

• 45 degrees North, 90 degrees West

• 38 degrees South, 109 degrees East

• 45 degrees South, 90 degrees East

What is the significance of 1 nautical mile?

• It is equal to 1 land mile

• It is equal to 1.16 land miles

• It is equal to 1 kilometer

• It is equal to 1.5 kilometers

How is a knot defined in terms of nautical miles?

• 1 knot = 1 nautical mile per day

• 1 knot = 1 nautical mile per hour

• 1 knot = 1 nautical mile per second

• 1 knot = 1 nautical mile per minute

Why is the equator used as a reference for measuring nautical miles?

• It is the most convenient distance

• It is the most accurate distance

• It is the longest distance

• It is the shortest distance

What is the relationship between land miles and nautical miles?

• Land miles are larger by 10%

• They are equal in size

• Nautical miles are larger by 20%

• Land miles are larger by 20%