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Invisibility 2

EM waves

QuestionAnswer
Which EM light has the longest wavelength? Radio
Which EM light has the shortest wavelength? Gamma Ray
Which EM waves move at the speed of light? All of them!
Which types of EM waves can you see? Visible light
Medical radiation therapy uses: Gamma Ray
Television uses: Radio waves
Which has shorter wavelength than visible light? Infrared or Ultraviolet? Ultraviolet
Sonar and cell phones use: Microwaves
Which has a shorter wavelength: Red or Blue light? Blue
Pit viper snakes and heat sensitive film uses: Infrared waves
Which EM waves are shorter than Ultraviolet but longer than Gamma Rays? X Rays
Place these in the order of longest to shortest wave: Microwave, Gamma Ray, Visible Light Microwave, Visible Light, Gamma Ray
Which has more energy, Radio waves or Gamma Rays? Gamma Rays
Which has the longer wavelength, orange light or green light? Orange light
Which waves are the size of a human? Radio waves
Which waves are the size of an atom? X Rays
VLA stands for: Very Large Array
Dopplar radar uses which waves? Microwaves
Which waves cause sunburn? Ultraviolet
Gamma rays release more energy in 10 seconds than what does in 10 billion years? Sun
T/F The longest EM waves have a frequency as long as a football field. False, wavelength
Energy is measured in Joules (J). __ waves have an energy limit of about 2 x 10^-24 radio
Energy is measured in Joules (J). __ waves have an energy limit of about 2 x 10^-14 gamma rays
T/F The wavelength range of visible light is between 4 x 10^14 and 7.5 x 10^14 Hz. False, frequency
__ wavelengths are about 1 x 10^-1m and __ wavelengths are about 1 x 10^-11m long. radio, gamma ray
T/F gamma rays are about 10,000,000,000 (ten billion) times shorter than radio waves. true
Without __ the world you know could not exist. electromagnetic radiation
EM waves are not mechanical waves like sound or water waves because they can travel through a _, that is they can travel without a _. vacuum, medium
The SI unit which means "Billionth of a meter" nanometer
the SI prefix which has a value of 1/1,000,000,000 nano
Red light has a wavelength of 6.5 x 10^-7. The speed of light is 300,000,000 m/s (3 x 10^8). What is the frequency of red light? 4.62 x 10^14 Hz
Created by: Mrs. Bridgman
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