Solar System Models
Which solar system model is "Earth-Centered"?
Geocentric
Which model of the solar system did Copernicus propose
Heliocentric model
Define universe
all space and everything in it
What is the origin of the universe called?
The big bang theory
What is electromagnetic radiation
energy that travels as waves
Which solar system model is "Sun-Centered"?
Heliocentric
Which scientist developed the Law of Universal gravitation?
a. Issac Newton
b. Albert Einstein
c. Georges Lamaitre
d. Edwin Hubble
A. Issac Newton
What type of star is the sun?
Medium-sized star or dwarf star
How are smaller objects like moons, planets, and stars measured in the universe?
in Kilometers (km)
What did Albert Einstein do?
Developed the theory of special relativity and general relativity
Who proposed the Geocentric model?
Ptolemy
What was Edwin Hubble's main contribution?
Provided observational evidence that the universe is expanding
What is a star?
A ball of hot gas that produces light and energy
What are Larger objects like Nebula, galaxies, and galaxy clusters measured in?
light years (ly)
What is our star called in the solar sytem?
The sun
Who proposed the heliocentric model
Copernicus
What did Georges Lemaitre do?
Proposed the early Big Bang Theory
What is our galaxy called
The Milky way
True or False
The universe stopped growing and is never expanding
False, It is constantly growing and expanding.
The next closest star to our solar system?
Proxima Centauri
Which model of the solar system do we use today?
heliocentric model
What did George Gamow do?
Explained how elements formed after the big bang
What is a Nebula?
Large cloud of gas and dust in space
How do scientist study the universe?
Electromagnetic radiation
What are the 5 large scale structures from smallest to largest?
Solar system, Star cluster, galaxy, galaxy cluster, and supercluster