WQTP 2 Flashcards
Visible light spectrum from low to high energy mnemonic (radio,microwave,infrared,visible,ultraviolet,x-ray,gamma rays)
Roger makes instruments: violins, ukuleles, xylophones, and guitars
Humans can only see the _ spectrum
Visible
The visible spectrum is _
ROYGBIV
Violet has _ wavelength and _ frequency
Short
Higher
Red has _ wavelength and _ frequency
Longer
Shorter
Roygbiv arranged in order from _ to _ wavelength
Longest
Shortest
Radio wave about the size of
Buildings
Radio wave meter
Over 1
Microwave meters
Between 1 and 10-3
Microwave about the size of
Grain of sugar
Infrared wave size (range)
10-3 to 7 x 10-7
Visible wavelength about the size of
Bacteria
Ultraviolet wavelength about the size of
Molecules
X-ray wavelength about the size of
Atoms
Gamma ray wavelength about the size of
Atomic nuclei
When you _ or _ you are using EM waves
Watch TV
Listen to the radio
Max plank is a _ physicist
German
Max Planck discovered that electrons can also act like
Particles
Electrons can act like particles because when they hit a metal surface _
They emit electrons
To test the theory, Planck heated metal surfaces until they were red hot and
Observed that they emitted EM radiation
The EM radiation being emitted, was emitted in small
Packages
Planck called the small packages of EM radiation being emitted
Quanta
Quanta in the singular form
Quantum
A quantum is the smallest quantity of energy that can be _ or _ in the form of EM energy
Emitted
Absorbed
