unit 9 Word Scramble

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Question	Answer
Which waves have some electrical properties and some magnetic properties	electromagnetic waves
Electromagnetic waves can transfer energy without a(n) Correct Answer	medium
Visible light has a higher frequency than	infrared rays
The range of electromagnetic waves placed in a certain order is called the	electromagnetic spectrum
The electromagnetic waves with the highest frequencies are called	gamma rays
Visible light can be separated into a spectrum of various	colors
If something vibrates one time per second, it has a frequency of	1 hertz
FM signals travel as changes in	the frequency of the wave
What kind of waves do cellular telephones use to transmit and receive signals	microwaves
Which electromagnetic waves have the longest wavelengths and lowest frequencies	radio waves
On AM broadcasts, what modulates	the amplitude
Which of the following is true of ultraviolet rays	They help your body produce vitamin D
The speed of an electromagnetic wave is equal to	wavelength times frequency
Electromagnetic waves	are transverse waves
Electromagnetic radiation with the shortest wavelengths is	gamma rays
The electromagnetic waves with wavelengths slightly longer than visible light are	infrared waves
The frequency of purple light is ____ that of yellow light	higher than
are used for medical imaging	X rays
Gamma rays are dangerous because they	break down molecules and cells
Television uses ____ to transmit signals	radio waves
The part of the electromagnetic spectrum usually used for communication is	radio waves
In electromagnetic waves, the magnetic fields are ____________________ to the electric fields	perpendicular
The ____________________ rays in sunlight can cause sunburn	Ultraviolet
The part of the electromagnetic spectrum you can see is called ____________________ light	visible
The electromagnetic waves that have the lowest frequencies are called	radio waves
A thermogram identifies the warm and cool parts of an object by using	infrared rays
An electromagnetic wave consists of changing electric and magnetic	fields
The law of reflection states that the angle of ____________________ equals the angle of reflection

Created by: s730338