Big Bang 1
The theory that most scientist believes explains how our universe began is called ________________.
What is the Big Bang Theory?
True or false: our understanding of the Universe is complete, unlikely to change, and no longer being explored by scientists.
What is false?
This type of electromagnetic wave has the highest energy.
What are gamma waves?
The Big Bang Theory explains the formation of this.
What is the Universe?
This is the most abundant element in the universe today.
What is hydrogen?
The electromagnetic spectrum looks at a range of __________ energies.
What is light?
BLUE shifted light has ____________ energy.
What is more?
What is true?
Frequency and wavelength are related. As the wavelength increases, frequency ______________.
What two subatomic particles would you find in the nucleus of an atom?
These EM waves are the only ones human eyes can detect.
What are visible light waves?
Most distant galaxies show a RED SHIFT. This is considered EVIDENCE that the universe is ___.
expanding
When a light producing object is moving closer to Earth, it is considered this.
What is blueshifted?
This wave property refers to the number of waves in a given period of time.
What is frequency?
Using the Doppler Effect, an object's movement can be determined. An object is moving in the direction of the ___________ wavelengths.
________ things come before ________ things.
What is simple and complex?
The remaining energy (radiation) from the big bang is called ________.
CMB -Cosmic Microwave Background
According to Redshift, the farther away a galaxy is, the _____________ it is moving away from earth.
faster
The Universe has changed over time. In the beginning, the Universe was _____________(size) and ______________ (temperature).
What is small/dense and hot?
This concept states that the amount of matter in the Universe remains constant over time (doesn't increase or decrease).
What is the conservation of matter?
This scientist collected data on the movement of galaxies. His data is used to support the Big Bang Theory.
Who is Edwin Hubble?
This theory, while not widely accepted today, says that the Universe goes through repeated periods of expansion and contraction.
What is the Oscillating/Cyclic Universe Theory?
Used to explain the changing pitch of objects as they move relative to us.
This atom has 11 protons.
What is sodium?
As the Universe has increased in size, EM waves have _____________ in energy.