Radio and Electromagnetic Wave Properties - T3B

Question 1

What is the name for the distance a radio wave travels during one complete cycle?

Answer 1

Wavelength

Question 2

What term describes the number of times per second that an alternating current reverses direction?

Answer 2

Frequency

Question 3

What are the two components of a radio wave?

Answer 3

Electric and magnetic fields

Question 4

How fast does a radio wave travel through free space?

Answer 4

At the speed of light

Question 5

How does the wavelength of a radio wave relate to its frequency?

Answer 5

The wavelength gets shorter as the frequency increases

Question 6

What is the formula for converting frequency to wavelength in meters?

Answer 6

Wavelength in meters equals 300 divided by frequency in megahertz

Question 7

What property of radio waves is often used to identify the different frequency bands?

Answer 7

The approximate wavelength

Question 8

What are the frequency limits of the VHF spectrum?

Answer 8

30 to 300 MHz

Question 9

What are the frequency limits of the UHF spectrum?

Answer 9

300 to 3000 MHz

Question 10

What frequency range is referred to as HF?

Answer 10

3 to 30 MHz

Question 11

What is the approximate velocity of a radio wave as it travels through free space?

Answer 11

300,000,000 meters per second