The EM Spectrum
The waves with the longest wavelength.
What are radio waves?
This is what light behaves like
What are waves?
When all colors of light are combined into one, it creates this color of light
What is white light?
The age of the universe/time since the Big Bang
What is 13.8 billion years?
Light waves that are moving away from the observer have this change in their emission spectrum.
What is redshift?
These EM waves are used in cell phones.
What are microwaves?
All waves on the EM spectrum go this speed
What is the speed of light?
Name 2 things studying starlight can tell us.
What is temperature, elements, density, or motion?
This law says that as galaxies get further away, their velocity increases.
What is Hubble's Law?
The Doppler Effect applies to these two types of waves.
What are sound and light waves?
The EM waves used in radiation therapy for cancer treatment.
What are gamma rays?
These EM waves are used in flashlights and light bulbs.
What is visible light?
This object can refract white light, bending it into the different wavelengths of visible light, called a rainbow.
What is a prism?
The EM waves produced by the Big Bang that are observable today.
What is cosmic microwave background radiation?
Light waves appear to stretch longer when they are moving in this direction.
What is away from the observer?
These waves let us see bones.
What are x-rays?
These EM waves are used in remote controls.
What is infrared?
When photons of light hit atoms, the electrons "jump" to higher energy levels and emit this.
What is visible light?
The process of new atom formation.
What is nucleosynthesis?
This color of visible light has the longest wavelength.
These are the 3 types of UV radiation.
What are UV-A, UV-B, and UV-C?
These 2 types of EM waves are radioactive and can be extremely dangerous.
What are x-rays and gamma rays?
To figure out what stars are composed of, astronomers compare the star's spectrum with this.
The spectra of elements?
The heaviest elements in our universe are formed during this event
What is a supernova?
This galaxy is blueshifting towards the Milky Way galaxy.
What is the Andromeda galaxy?