Which electromagnetic waves are used for television broadcasts?
a. radio waves
b. television waves
c. infrared waves
d. ultraviolet waves
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a
The full range of wavelengths of electromagnetic radiation is called the
__________.
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, electromagnetic spectrum
A vibrating electric field creates a vibrating __________.
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magnetic field
When electromagnetic waves strike an obstacle, they may spread out around it,
or __________.
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diffract
Describe the electromagnetic spectrum. How do electromagnetic waves vary
from one end of the spectrum to the other?
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The electromagnetic spectrum is the full range of wavelengths of
electromagnetic radiation. At one end of the electromagnetic
spectrum are radio waves, which have the longest wavelengths and
lowest frequencies of all electromagnetic waves. Radio waves with the
shortest wavelengths are called microwaves. At the other end of the
electromagnetic spectrum are X rays and gamma rays, which have the
shortest wavelengths and highest frequencies of all electromagnetic
waves. In the middle of the spectrum, between the two extremes, are
electromagnetic waves called light. The longest wavelengths of light
a. radio waves
b. television waves
c. infrared waves
d. ultraviolet waves
Give this one a try later!
a
The full range of wavelengths of electromagnetic radiation is called the
__________.
Give this one a try later!
, electromagnetic spectrum
A vibrating electric field creates a vibrating __________.
Give this one a try later!
magnetic field
When electromagnetic waves strike an obstacle, they may spread out around it,
or __________.
Give this one a try later!
diffract
Describe the electromagnetic spectrum. How do electromagnetic waves vary
from one end of the spectrum to the other?
Give this one a try later!
The electromagnetic spectrum is the full range of wavelengths of
electromagnetic radiation. At one end of the electromagnetic
spectrum are radio waves, which have the longest wavelengths and
lowest frequencies of all electromagnetic waves. Radio waves with the
shortest wavelengths are called microwaves. At the other end of the
electromagnetic spectrum are X rays and gamma rays, which have the
shortest wavelengths and highest frequencies of all electromagnetic
waves. In the middle of the spectrum, between the two extremes, are
electromagnetic waves called light. The longest wavelengths of light
