Waves Characteristics
Light as a Wave
Light as a Particle
The Doppler Effect
Redshift & the Big Bang
100
This is a measurement of the height of a wave, always from the equilibrium to either peak or trough.
What is Amplitude?
100
This early 1900s physics experiment led many physicists to think of light as a wave.
What is 'The Double Slit Experiment?'
100
This experiment helped physicists better understand the particle-nature of light.
What is the Photoelectric Effect Experiment?
100
We likely experience the Doppler effect everyday with these kind of waves.
What are sound waves?
100
This term is given when the Ha wavelengths emitted by celestial objects are larger than the expected ~650nm.
What is redshift?
200
This is a measurement of the width of a wave, from "peak to peak" or "trough to trough".
What is Wavelength?
200
This image surprised early physicists. What wave behavior leads to this surprising pattern?
What is Wave Interference?
200
This famous, beloved physicist received a Nobel Prize for his work on the Photoelectric Effect.
Who is Albert Einstein?
200
When thinking about the Doppler effect, it is important to remember the key relationship between these two things.
What are an observer and a moving, wave-producing object?
200
A famous, orbiting telescope was named after this scientist who is credited with the diagram that describes the universes expansion like a balloon being inflated.
Who is Edwin Hubble?
300
These two waves characteristics have an inverse, or opposite, relationship.
What are Wavelength and Frequency?
300
The dark spots in the pattern are a result of this type of interference.
What is Destructive Interference?
300
In order to change the amplitude of light in the Photoelectric Effect Experiment, you had to change this setting.
What is intensity, or brightness?
300
The Doppler effect allows observers to predict the movement of a wave-producing object. Observing an decreased frequency means the object is moving in what direction in relation to the observer?
What is away from the observer?
300
Interestingly, a pattern exists in the redshift values of galaxies: the further away from us they are, the _______ they are traveling.
What is faster?
400
This type of wave interference leads to "super peaks" and higher amplitude waves.
What is Constructive Interference?
400
In the Double-Slit Experiment, these are the "points" of constructive interference.
What are Antinodes?
400
Surprisingly, this wave characteristic changed the speed, or energy, of electrons in the Photoelectric Effect Experiment.
What is frequency, or color?
400
The Doppler effect can be used to determine the motion of celestial objects using this know wavelength of Hydrogen Alpha Ha.
What is 656 nm?
400
Also the title of a popular 2000s-era TV comedy, this widely-accepted theory of the universe attempts to explain its rapid expansion.
What is 'the Big Bang Theory?'
500
This is a measure of the time is takes for a wave to pass.
What is Period?
500
These two types of lines can be traced along patterns of constructive and destructive interference and are helpful in explaining the pattern of light in the Double-Slit Experiment.
What are Nodal and Antinodal Lines?
500
The results of both the Double-Slit and Photoelectric Effect experiments led physicists and modern science coined this term to help explain the interesting nature of light.
What is Wave-Particle Duality?
500
This type of spectra consists only of the specific wavelengths emitted by particular elements, each giving a unique signature, or "fingerprint."
What is emission spectra?
500
In 1965 this key piece of evidence supporting the Big Bang Theory was discovered.
What is Cosmic Microwave Background Radiation?
