Formation of the Universe
Who proposed the Big Bang Theory?
Georges Lemaitre
What do all stars start out as?
Stellar Nubula
What is eccentricity?
How stretched an ellipse is.
What is the difference between rotation and revolution?
Rotation: the spinning of Earth on its axis
Revolution: a complete orbit around the sun
Where does energy on Earth come from?
The sun
Who observed the expanding universe?
Edwin Hubble
Where did hydrogen and helium originate?
The initial Big Bang
Is an orbit with a high eccentricity closer to a circle or a straight line? (Ex: an eccentricity of .928)
A straight line
Half of a sphere is called what?
Hemisphere
What are the three types of energy transfer?
1. Convection
2. Conduction
3. Radiation
What term describes the faint glow of electromagnetic radiation that fills the entire universe, and started during the Big Bang?
Cosmic Background Radiation (CBR); Cosmic Microwave Background (CMB)
How did the heaviest elements form?
Supernova
What is Kepler's First Law?
Each planet's orbit around the sun is an ellipse.
What hemisphere do we live in?
North Western
What is the only wavelength we can see?
Visible Light
What is Red Shift?
Galaxies are moving away from us.
What process form elements in the core of a star?
Fusion
What is Kepler's Second Law?
The imaginary line joining a planet and the Sun sweeps equal areas of space during equal time intervals as the planet orbits.
What is the imaginary line running through the middle of the Earth at 0 degrees (latitude)?
Equator
Where would you find a radio wave in real life?
Radio, TV
What are the three pieces of evidence from the Big Bang?
1. Red Shift
2. Cosmic Background Radiation
3. Formation of Elements
Where do sodium and magnesium form?
Large stars
What is Kepler's Third Law?
The squares of the orbital periods of the planets are directly proportional to the cubes of the semi-major axes of their orbits.
What causes our seasons on Earth?
Where would you encounter ultraviolet radiation?
Outside in the sun, the beach, etc.