Astronomy Quiz 4/10
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23 Terms
Light has no ____
Mass
Light consists of ____
fluctuating magnetic and electric fields
Light is a form of ____
energy
The total amount of energy in a system ________________
stays the same
Light can be ________
transformed into other forms of EM radiation, into kinetic energy, or potential energy
Light can do _____
work
Work:
exert a force over distance on an object with mass
Light interacts with matter through:
Absorption, Reflection/Scattered, Transmission, Emission
Absorption
Reflection/Scattered
Transmission
Emission
Speed of Light
3×105 km/sec (in a vacuum) = 300,000,000 m/s
Wavelength
Measured in Meters
Frequency
Measured in Hertz
Wavelength X Frequency =
speed
Wavelength and Frequency are _____ of each other
inverse
The speed of light is a __________
constant
Energy = hf, J for Joules
h= 6.63 X 10-34
Light can act like a _______ through the photoelectric effect
particle
Light can act like a _______ in a double slit experiment
wave
Light produces _________
interference pattern like a wave would light diffracts