An optical telescope which uses a single telescope which uses a single or combination of curved mirrors that reflects light and forms an image
What is reflecting telescope
100
An object so massive and dense that even light cannot its gravity
What is black hole
100
the time required for the earth to rotate once on its axis
What is day
100
The tendency of an object to resist being moved or if the object is moving to resist a change in speed or direction until an outside force acts on the object
What is inertia
100
Group of stars that are close together and relative to other stars
What is open clusters
200
Earth rotates on its x axis, it takes 24 hours for one day
What is earths rotation
200
who's theory states that the sun is the center of the universe
What is copernicus
200
the time required for the earth to orbit once around the sun
What is year
200
The curved path that an object follows when thrown , launched or otherwise projected near the surface of Earth
What is projectile motion
200
Very luminous starlike object that generates energy at a high rate
What is quasars
300
The position of the sun where all over the world the days and nights really equal
What is vernal equinox
300
the point in the sky directly above an observer on earth
What is zenith
300
an apparent shift in the position of an object when viewed from different locations
What is parallax
300
The constant velocity of a falling object when the force of air resistance is equal in the magnitude and opposite in direction to the force of gravity
What is terminal velocity
300
The study of the origin, properties, processes, and evolution of the universe
What is cosmology
400
An apparent in the position of an object when viewed from different locations
What is parallax
400
region of the sky that contains a recognizable star pattern and that is used to describe the location of objects in space
What is constellation
400
a rapidly spinning neutron star that emits rapid pulses of radio and optical energy
What is pulsar
400
Large cloud of gas and dust in interstellar space a region in space where stars are born or where
What is nebula
400
This states that the universe began with a tremendous explosion 13.7 billion years ago
What is Big Bang Theory
500
A rapidly spinning neutron star that emits rapid pulses of radio and optical energy
What is pulsar
500
the angle between an object in the sky and the horizon
What is altitude
500
The motion of a body when only the force of gravity is acting on the body
What is free fall
500
Tight group of stars that are looks like a ball and contains up to one million stars
What is globular clusters
500
A graph that shows the relation between a stars surface temperature and the absolute magnitude.