What is GPS? - Satellite Navigation

The video tutorial explains the widespread use of GPS technology, which relies on 24 satellites in fixed orbits around the Earth. It describes how GPS devices calculate location by measuring the time it takes for signals to travel from satellites to the receiver, using the speed of light. The process of triangulation with multiple satellites is used to determine exact locations. GPS has diverse applications, including transportation, disaster response, military operations, and everyday tasks like finding nearby cafes.

How many satellites are used in the GPS system to cover the Earth?

• 48

• 36

• 24

• 12

What is the speed of the radio signal used by GPS to calculate distance?

• Speed of light

• Speed of a car

• Speed of sound

• Speed of a plane

What is the primary purpose of using multiple satellites in GPS?

• To increase signal strength

• To broadcast news

• To provide weather updates

• To determine the exact location

Which of the following is NOT a use of GPS technology?

• Managing military operations

• Responding to natural disasters

• Running transport systems

• Cooking food

What is a common everyday use of GPS technology?

• Finding the nearest cafe

• Calculating taxes

• Reading books

• Writing emails