A unit of measurement you would use to measure the distance between Neptune and Mars.
What is an Astronomical Unit?
100
An object that orbits a planet but is too small to be considered a planet.
What is a moon?
100
Reactions which combine light elements such as hydrogen into heavier elements such as helium, releasing energy.
What is nuclear fusion?
100
A huge group of stars, dust, gas and other objects bound together by gravitational forces.
What is a galaxy?
100
The distance between objects also affects this. The closer objects are to each other, the stronger this is between them. The farther apart, the weaker it is.
What is gravitational force?
200
DOUBLE JEOPARDY
9,460,000,000,000km or 9.46 ×10^12 km
What is a light year?
200
This large cluster of rocks, orbits the sun, but are too small to be considered planets. They divide the inner and outer planets.
What is the Asteroid Belt?
200
List 3 ways to classify stars.
Size, temperature, color and brightness.
200
Spiral, elliptical, and irregular. (as well as barred, and lenticular)
What are galaxy shapes?
200
The idea that the Earth is at the center of the solar system
What is the Geocentric Model?
300
The time until our sun becomes a red giant.
What is 4 billion years?
300
DOUBLE JEOPARDY
These are caused by the 23-degree tilt of the Earth's axis of rotation relative to its orbit.
What are seasons?
300
Gravitational forces cause denser regions of the nebula to collapse forming this?
What is a protostar?
300
A model of the solar system which places the sun at its center.
What is the Heliocentric model?
300
The universe exploded outward from a single point smaller than an atom into the vast expanse of galaxies and space we see today.
What is the Big Bang Theory?
400
The longest and most stable part of a star's life.
What is a star in the main sequence stage of its life cycle?
400
This layer of the sun undergoes nuclear fusion.
What is the core?
400
This will occur during the red giant phase of our sun. (Hint: What will happen to our solar system?)
What is the incineration of Earth and all of the inner planets?
400
An object with such strong gravity that its escape velocity equals or exceeds the speed of light.
What is a black hole?
400
The faster the source of light is moving away from the observer the greater this is.
What is redshift?
500
The sun sits about 26,000 light years from the center of this.
What is the Milky Way?
500
According to this law, inertia causes objects to tend to keep moving in a straight line. (An object in motion will stay in motion until an outside force acts upon it).
What is Newton's first law?
500
This is used to organize stars based upon their luminosity and temperature/color.
What is an HR diagram
500
If this is known, then the inverse square law can be used to find the distance between galaxies. This also means absolute magnitude.
What is the lumonsity of a star?
500
A spectacular explosion that is brighter than 10 billion stars and can outshine an entire galaxy for a few seconds.