GPS Unit

Possible EQ’s:

List five positive and five negative things about GPS receivers.

What are two advantages and two disadvantages that GPS receivers have over paper maps?

How could GPS receivers be used in the future?

GPS receivers can be used to keep track of people. How could this be useful?

How could GPS systems be used incorrectly or illegally?

Would you like to be tracked by a GPS receiver? Why or why not?

History of GPS Receivers – possible quiz?

Which invention made the existence of GPS receivers possible?
a. the analog clock b. the atomic clock c. the digital clock


Upon which mathematical principle are GPS receivers based?



What year was the first system of GPS available for public use?
a. 1998 b. 1991 c. 1993


What is the main function of GPS receivers?

Which organization was responsible for the first GPS network?

How accurate are the positions given by the GPS receivers?
a. within 20 meters b. within 10 meters c. with 5 meters


Answers: 1. b 2. triangulation 3. C 4. Navigation 5. The US Dept of Defense 6.c