Which statement provides the most accurate description of a GPS device?

Which statement provides the most accurate description of a GPS device?

• A. A device for calculating trajectory
• B. A device for determining location, distances, elevations
• C. A device for tracking moving objects in real-time
• D. A device for measuring surface temperatures

Answer: (B)

The statement that accurately describes a GPS device is that it is a device for determining location, distances, and elevations. GPS, or Global Positioning System, utilizes a constellation of satellites that transmit signals to GPS receivers on the ground. By calculating the time it takes for these signals to reach the receiver from multiple satellites, the device is able to pinpoint its exact location in terms of latitude and longitude. Additionally, it can also determine elevation above sea level, contributing to its ability to provide detailed positional information. This capability is fundamental to the functioning of GPS technology and underpins a wide array of applications, from navigation in vehicles to geolocation in mobile devices and mapping systems. The other options describe functionalities that could be related, but they do not encapsulate the primary purpose of GPS technology as comprehensively as the chosen statement does. For instance, while GPS can indeed track moving objects, which relates to real-time tracking, this is more of an application rather than a defining feature of GPS functionality. Similarly, while certain GPS technologies can aid in measuring distances, they primarily focus on establishing precise locations, which is the core aspect highlighted in the selected answer.

The statement that accurately describes a GPS device is that it is a device for determining location, distances, and elevations. GPS, or Global Positioning System, utilizes a constellation of satellites that transmit signals to GPS receivers on the ground. By calculating the time it takes for these signals to reach the receiver from multiple satellites, the device is able to pinpoint its exact location in terms of latitude and longitude. Additionally, it can also determine elevation above sea level, contributing to its ability to provide detailed positional information.

This capability is fundamental to the functioning of GPS technology and underpins a wide array of applications, from navigation in vehicles to geolocation in mobile devices and mapping systems. The other options describe functionalities that could be related, but they do not encapsulate the primary purpose of GPS technology as comprehensively as the chosen statement does. For instance, while GPS can indeed track moving objects, which relates to real-time tracking, this is more of an application rather than a defining feature of GPS functionality. Similarly, while certain GPS technologies can aid in measuring distances, they primarily focus on establishing precise locations, which is the core aspect highlighted in the selected answer.