Question

Satellites use radio waves and microwaves to send and receive information over large distances. Which reason best explains why these are used instead of sound waves?

a. Radio waves and microwaves can move in the vacuum of outer space.
b. Sound waves store large amounts of data.
c. Radio waves and microwaves have the longest wavelengths and greatest energy.
d. Sound waves are a dangerous way to transfer information.

Answer 1

Satellites use radio waves and microwaves instead of sound waves because they can travel through the vacuum of outer space and carry more information per unit time.

Step-by-step explanation:

The reason why satellites use radio waves and microwaves instead of sound waves is because radio waves and microwaves can travel through the vacuum of outer space, while sound waves require a medium, such as air or water, to propagate. Additionally, radio waves and microwaves have shorter wavelengths and higher frequencies, which allow them to carry more information per unit time. Sound waves, on the other hand, are not suitable for long-distance communication and do not have the ability to transmit data over large distances like radio waves and microwaves do.