Question

The Global Positioning System, or GPS, uses a network of satellites that orbit the Earth to calculate and track locations. Which of the following best describes the signals sent and received by satellites?
A.
gravitational energy
B.
electromagnetic waves
C.
potential energy
D.
sound waves

Answer 1

The correct answer is **B. electromagnetic waves**. GPS satellites use electromagnetic waves to send signals to GPS receivers on the ground, allowing them to determine their locations based on the time it takes for the signals to travel.