10.3 Wireless Communication

Front

What is the second step in how radios work?

Back

Radio waves strike your radio's antenna and are picked up.

Front

Which type of radio waves have higher frequencies and more energy?

Back

Frequency modulation.

Front

What does GPS stand for?

Back

Global positioning system.

Front

What do satellite phones transmit?

Back

Radio waves.

Front

Why do we need more than one satellite for communication?

Back

Satellites can only see part of the earth at a time.

Front

What is the primary function of a radio antenna?

Back

To pick up radio waves.

Front

What is the difference between frequency modulation (FM) and amplitude modulation (AM)?

Back

FM has higher frequencies and more energy than AM.

Front

What is the role of satellites in GPS technology?

Back

To provide location data by triangulating signals from multiple satellites.

Front

What type of waves do satellite phones use for communication?

Back

Radio waves.

Front

How do radios convert radio waves into sound?

Back

By converting radio waves into electrical signals and then into sound.