Show:
Electromagnetic Waves
Electromagnetic Spectrum
Redshift
Layers of the Sun
EM Misc
100
Waves move by transferring this.
What is Energy?
100
Electromagnetic Waves can be described as "packets" of energy called this
What are photons
100
This is light released when electrons "jump" down an energy level
What is emission spectrum?
100
This is the surface of the sun where electromagnetic waves can escape.
What is the photosphere?
100
This is the negatively charged particle of an atom that absorbs photons
What are electrons?
200
Electromagnetic Waves are the only waves that can travel through this.
What is a vacuum?
200
This Electromagnetic wave has the shortest Wavelength, and the highest frequency
What are Gamma Rays?
200
When elements "jump" up or down energy levels they absorb or release this
What are photons?
200
This is how Energy is created in the Sun's core
What is Nuclear Fusion?
200
This is why Emission and Absorption spectrum can be used as an element's "fingerprint"
Each element has a unique emission and absorption spectrum.
300
This measures the distance between two crests of a wave.
What is Wavelength?
300
Humans can see this much of the electromagnetic spectrum as visible light.
What is less than 1% (0.0035%)
300
This is why emission and absorption spectrum are useful for astronomers
What is to investigate elements in celestial bodies?
300
This equation describes how nuclear fusion creates energy
What is E=mc^2?
300
These are cooler spots on the sun linked by its magnetic field
What are sunspots?
400
This measures how many times a second a wave passes. It is measured in Hertz (Hz)
What is frequency?
400
This is the wave with the longest wavelength and lowest frequency.
What are radio waves?
400
If a galaxy is moving away from us at 60,000 m/s, what wavelength would 500nm light shift to?
What is 625 nm?
400
These are created by charged particles interacting with the Earth's atmosphere
What are Aurora?
400
This is the length of the Sunspot Cycle
What is 11 years?
500
This formula calculates the speed of a wave.
What is Velocity = Wavelength * Frequency? ( V = ƛ * f)
500
These are two ways that Astronomers can use the electromagnetic spectrum.
answers may vary
500
If astronomers saw a galaxy's light had shifted from 435nm to 625nm, what speed would the galaxy be moving?
What is 91,200 m/s?
500
This is how energy is transferred through each level of the Sun
Core: Nuclear Fusion Radiation: EM waves transferring through electrons Convection: Convection Currents Photosphere: EM waves escape sun's surface
500
The Sun has enough nuclear fuel to burn for this long.
What is 5 billion years?