Kepler's Laws
Stellar Evolution
Hertzsprung-Russell Diagram
Universal Law of Gravity
100

The location on its orbit where a planet's velocity is the greatest.

What is the perihelion?

100

The type of star the Sun will be when it is finished fusing all of the hydrogen into helium in its core and begins to fuse hydrogen outside its core.

What is a red giant?

100

The color of the stars with the highest temperature.

What is blue?

100

It is the force that would increase by inreasing the mass of a satellite or decreasing the distance between the satellite and the Earth. 

What is gravity?

200

The location on its orbit where a planet's velocity is the lowest.

What is aphelion?

200

The type of star the sun will be at the end of its life when all fusion has stopped.

What is a white dwarf?

200

The color of the stars with the lowest temperature.

What is red?

200

It would happen if the mass of a satellite were increased.

What is the gravitational force would increase?

300

Planets orbit the Sun in this type of shape, not quite a circle and not a straight line.

What is an ellipse?

300

An explosion-like event that occurs just before the formation of a neutron star from a massive star.

What is a supernova?

300

The location of the Sun on a Hertzsprung-Russell diagram.

What is the main sequence?

300

It would happen if the mass of a satellite were decreased.

What is the gravitational force would decrease?

400

The time it takes a planet to travel around the Sun, measured in a year. 

What is the orbital period?

400

The final form of a very massive star that consists of a very small, very dense mass.

What is a black hole?

400

The two most abundant gases found in main sequence stars.

What are hydrogen and helium?

400

It is what happens when the distance between the satellite and planet is increased.

What is the gravitational force decreases?

500

The characteristic that determines the length of a  planet's orbital period. 

What is distance from the Sun?

500

The beginning of a star, often consists of a matter left over after the death of another star.

What is a nebula?

500

The types of stars, found in the lower right of a Hertzsprung-Russell diagram, that are dim and cool.

What are red dwarfs?

500

It is what happens if the distance between a satellite and planet is decreased.

What is gravitational force increases?

600

In Kepler's equation P2 = a3, it is the value of P. 

What is orbital period?

600

The two forces that keep a star stable and on the main sequence.

What are gravity and fusion?

600

The types of stars, found on the upper right of the Hertzsprung-Russell diagram that are bright and cool.

What are red giants?

600

The two ways that the gravitational force between a satellite and the Earth could be decreased.

What are increase the distance and decrease the mass?

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