Who theorized the heliocentric model, with the Sun at the center of the universe?
100
Sun
What is our solar system's medium size yellow star?
100
An instrument that gathers electromagnetic radiation from objects in space and concentrates it for better observation.
What is a telescope?
100
Spinning of a body on its axis.
What is rotation?
100
Universal Expansion
What is the theory that the universe is constantly expanding, the galaxies are moving farther apart?
200
Kepler
Who has the 3 laws of motion?
200
A ball of gas and dust begins to come together due to gravity.
What is the 1st step in the life cycle of a star?
200
Uses a set of lenses to gather and focus light.
What is a refracting telescope?
200
One complete trip along on orbit.
What is revolution?
200
Big Bang Theory.
What is the theory that the universe began with a tremendous explosion?
300
Galileo
Who observational astronomy include the telescopic confirmation of the phases of Venus, the discovery of the four largest satellites of Jupiter?
300
Hydrogen changes to helium and the sphere becomes hotter.
What is Nuclear Fission?
300
Reflecting.
Which telescope uses a curved mirror to gather and focus light?
300
A path a body follows as it travels around another body in space.
What is orbit?
300
Mercury, Venus, Mars, Earth
What are the 4 terresrtial planets?
400
Hubble
Who confirmed the existence of galaxies other than the Milky Way?
400
The visible part of the sun, we see from earth.
What is the photosphere?
400
Non-optical
Which telescope is used to study invisible radiation?
400
Inertia
What is an object’s resistance in speed or direction until an outside force acts on the object?
400
Saturn, Neptune, Venus, Jupiter
What are the 4 gaseous planets?
500
Ptolemy
Who listed the forty-eight constellations is ancestral to the modern system of constellations, but unlike the modern system they did not cover the whole sky?
500
Super Nova
What is a massive star that explodes in a large bright flash?
500
gamma
x-ray
radio
infared
What are 4 types of non-optical telescopes?
500
Law of Universal Gravity
What is the law that the force of gravity depends on the product of the masses of the objects divided by the square of the distance between them?
500
When the Sun, moon and Earth are aligned and the moon is between the sun and earth.