Whose theory stated that the sun in the middle of the universe?
What is Copernicus
100
What instrument collects electromagnetic radiation from the sky and concentrates it for better observation?
What is a Telescope
100
Which is hotter a rigel or a betelguse?
What is Rigel
100
What is a collection of stars, dust, and gas bound together by gravity?
What is a galaxy
100
What caused the universe to expand in all directions?
What is The Big Bang
200
Which astronomer was one of the first people to use a telescope to observe objects in space?
What is Galileo Galilel
200
What are the two types of telescopes?
What is Refracting and Reflecting Telescopes.
200
What is the brightness of a star as seen from earth?
What is apparent magnitude
200
Which telescope classifies galaxies?
What is The Hubble Space Telescope
200
What are the two ways scientist calculate the age of the universe?
What is measuring the distance from earth to various galaxies and calculate the ages of old nearby stars.
300
What astronomer proved that other galaxies existed beyond the edge of the Milky Way?
What is Edwin Hubble
300
What is the point where rays of light pass threw a lens or reflect from a mirror?
What is a Focal Point
300
What process creates a star?
What is Nuclear Fusion
300
What are the three types of galaxies?
What is Spiral, elliptical, irregular galaxies.
300
What can the expansion of the universe be compared to easily?
What is raisin bread baking in an oven.
400
Which astronomer took over Tycho Brahes research after his death?
What is Johannes Kepler
400
Who proved that light is part of the electromagnetic spectrum
What is James Clerk Maxwell
400
Name 5 types of stars.
(POSSIBLE ANSWERS) What is Neutron star, white dwarf, red giant, giant, super giant, main sequence, red dwarf.
400
What is the difference between a globular cluster and open cluster?
What is A globular cluster is a tight group of stars of up to one million stars and looks like a ball. An open cluster is a group of closely grouped stars that are usually located along the spiral disk of a galaxy.
400
When did the big bang occur?
What is 13.7 billion years ago.
500
What astronomer showed that all objects in the universe attract each other through gravitational force?
What is Sir Isaac Newton
500
What did scientists do to avoid interference by the atmosphere?
What is placed telescopes in space.
500
What graph shows the relationship between a star's surface temperature and absolute magnitude?
What is H-R Diagram
500
Out of these galaxies, in order of decreasing size what is the second highest? Spiral, giant elliptical, dwarf elliptical, or irregular.
What is Spiral
500
Why do scientists think that the universe will expand forever?
What is may not be enough matter to produce the gravitational attraction to counteract expansions.