Cosmology
What is the name of our galaxy?
Milky Way
What is the name of the first stage of the life cycle of stars? (Cloud of gas and dust)
Nebula
The asteroid belt (~4000 asteroids) is found between...(two planets)
Mars and Jupiter
Which star is known as the 'Morning Star'?
What is the major difference between stars and planets?
Stars have their own light and energy while planets do not.
The geocentric world model means...
Earth is the centre of the Universe and all planets revolve around Earth
The brightness of stars depends on.....(3)
mass, size, temperature
The highest volcano (23 km) of our solar system is found on....
Mars (Red Planet)
Pluto is not considered to be a 'real' planet since....(year), instead it is called 'dwarf planet'.
2006
What is the exact unit of measurement for the acceleration of gravity?
9.8m/s2
What does Kepler's first law state?
The orbits of planets are ellipses
When the hydrogen runs out, the outside of the star expands and it becomes a....
red giant
Which one reaches the surface of Earth? Meteor? Meteorite? Meteoroid?
Meteorite
Which two planets in our solar system are the ones that have no moons at all?
Mercury and Venus
It is a dead star with huge mass and strong gravity, can absorb anything.
Black hole
What is the difference between Astronomical Unit and light year?
Light year: distance that light travels at a speed of 300.000 km/sec, Astronomical Unit: distance bw. Earth and Sun
Which layer of the Sun is the outermost, hottest layer? (corona, cromosphere, photosphere?)
Corona
Short periodic comets refer to comets that.....(+example!)
return in years / decades. Example: Halley's comet (76 yrs)
The main gases of 'gas giants' are....(mention at least two!)
hydrogen, helium, ammonia, methane
The collapsed core of a large star is called....(it is the densest and smallest regarding the life cycle)
Neutron star
Mention one evidence of the Big Bang theory!
Redshift of galaxies or Cosmic Microwave Backgound Radiation (CMB) or Abundance of Light Elements
Name of energy producing process in the stars' core (2 hydrogen -> 4 helium)
(thermo)nuclear fusion
How do you call the thick, icy shell of a comet that surrounds the nucleus?
coma
The ring structure of Saturn is made up of.....(mention at least two!)
dust, ice crystals, rock debris
Which part of the atmosphere is the one where meteors are burnt up?
mesosphere