Question

1. how does gps work? to know where a person is, this is what happens: the phone calculates the location based on the distance from the 4 satellites. the phone sends a query to the satellites and then the satellites answer back. the phone gets location from 1 satellite.

Explanation:

GPS (Global Positioning System) uses a network of satellites. A device (like a phone) calculates its location by measuring the distance from at least 4 satellites. It doesn't get location from just 1 satellite. The device doesn't send a query in the described way first - the satellites continuously broadcast signals which the device uses for calculations.

Answer:

The phone calculates the location based on the distance from the 4 satellites.