Review Questions-Wireless Communications

How do FM waves travel?

• As changes in the frequency of the wave
• As changes in the amplitude of the wave
• As changes in the wavelength of the wave
• As changes in the resonance of the wave

Tags

NGSS.HS-PS4-1

Which waves pass through the atmosphere and are not reflected back toward Earth?

• FM

• AM

• Radio

• Microwave

Which waves can reach great distances (Waves go into atmosphere and reflect back to Earth so that can move around the curvature of Earth)? 

• FM
• AM
• Radio 
• Microwaves 

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-5

What types of waves carry information to your TV and radio ?

• Radio

• Microwaves

• Gamma

• AM

What types of waves do cell phones use?

• Radio waves
• Gamma Rays
• Microwaves 
• Ultraviolet Rays

What does GPS tell you? 

• The time
• Your exact location
• How much money you have
• What the weather is like

What does AM stand for?

• amplified mediation

• amplitude modulation

• communication satellites

FM radio stations broadcast signals by changing the ______ of the wave only.

• amplitude

• medium

• frequency

• modulation

Radio stations that transmit signals by changing the amplitude of the wave only are ___ stations.

• FM

• AM