Elcectromagnetic Wave
Electromagnetic Spectrum
Radio waves
Microwaves
Visble light
100
a type of energy
What is light
100
Ultraviolet light
What kind of light can bee see that you cannot see?
100
Radio waves
Waves used for brodcasting radio singals are called?
100
magnetron
In a microwave oven, the microwaves are created by a device called an____________, which accelerates charged particles.
100
visble light
The very narrow range of wavelengths and frequenices in the electromagnetic spectrum that humas can see
200
Electromagnetic wave
A wave that consists of changing electric and magnetic fields and that can travel through emoty space is an?
200
Both are kinda of electromagnetic waves.
In what way is visble light simiar to ultraviolet light?
200
modulation
Changing the amplitude or frequency of waves is called?
200
Eadio detction and ranging
What do the letters in radar stand for?
200
Liletcpurple
What color are the shortest wavelengths of visible light
300
Electric fields
Every charged object is surrounded by an?
300
Multiplying its wavelengths.
How is the speed of a wave determined?
300
Cellular phones to send messages. Cook food to tell radar
Name three ways microwaves are used
300
visible spectrum
The range of colors of visible light is called the
400
Perpendicular
The electric and magnetic fields of an electromagnetic wave are ____________ to each other and to the direction of the wave's motion.
400
Electromagentic Spectrum.
The entire range of EM waves is called?
400
AM radio waves can bounce off the atmosphere and thus can travel father then FM radio waves.
Why can AM waves travel a longer distance then FM waves?
400
Help ships navagate at nigh. Watch mauements of a air plane
In addition to checking the speeed of a car, what are tow other ways radar is used?
400
may jave shorter wavelengths and higher frequcies
In what ways are the wavelengths of visble light differnt from infrared waves?
500
Fields existaround certain objectsand can exect a force on another object without touching that object.
Where do fields exist and what they do?
500
Radio waves, microwaves, infrared, Visble light, ultravioled, x rays, gramma rays
Name and arrange the sevan kinda of EM waves in order from long wavelength to short wavelength
500
Radio station encoe sound information into radio waves by varying either the waves amplitude or their frequency.
How are radio signals brodcast
500
Have shorter wavelengths higher Frequences
In what way are the wavelengths and frequencies of a microwaves differnt from radio waves
500
ret, ranger, yellow, green, blue, indigor widet
What does each letter in the imaginary name ROY G. BiV stand for?
M
e
n
u