Vocabulary
The natural phenomenon that causes objects with mass to attract each other?
What is gravity?
Explain what would happen to our solar system if there were no gravity.
What is the planets, moons, and stars would not be able to maintain their shape and their current behavior?
How do we categorize stars?
What is their size, how hot they are, what gases they contain?
Scientists estimate there could be this many galaxies in the universe.
What is over 100 billion?
Define weight.
What is weight is the force experienced by an object due to gravitational pull?
These are groups of stars that can be seen at night depending on your location and the time of year.
What are constellations?
___________ _______ is a non-contact force and represents the actual force of attraction between two objects due to their masses.
What is gravitational force?
The Sun is this type of star.
What is a main sequence star?
Our galaxy is called .....
What is the Milky Way?
Our closest neighboring galaxy is...
What is the Andromeda galaxy?
The Earth is rotating around the Sun and on its axis. This motion causes the stars to look as if they are moving. What is this called?
What is apparent motion?
True or false: Gravitational force only exists due to the larger object.
What is false; gravitational force exists between aby two objects.
When does a red giant star occur?
What is red giants occur when a star becomes larger and begins to cool off (begins to die)?
Our galaxy has this shape.
What is spiral?
A solar eclipse is...
What is when the moon passes between Earth and the Sun?
A large cluster of stars, planets, star clusters, dust, and gas held together by gravity.
What is a galaxy?
What are the 2 factors that affect gravitational force?
What is the mass of the objects and the distance of the objects? (The smaller the mass, the more it will be affected by gravity; the shorter the distance, the more it will be affected by gravity).
These stars give off a blueish-white color and occur when a star has shed its outer layers.
What is a white dwarf?
The 3 galaxies in the Local Group are:
What is the Milky Way, Andromeda, and the Triangulum galaxies?
A lunar eclipse occurs when...
What is when the Sun, moon, and Earth are aligned so that the moon passes into Earth's shadow?
What are the outer and inner parts of a black hole called?
What is the event horizon and the singularity?
Explain how gravitational force and mass work together.
What is two objects exert the same gravitational force, but objects with a smaller mass will be effected more by the force than the larger object. (This is why a frisbee moves towards Earth instead of the Earth towards the frisbee) (Think of the puppy and elephant on a leash example).
This type of star is an exploding star and they occur when a star gets old and runs out of gas.
What is a supernova?
Where is our solar system located in our galaxy?
What is the Milky Way is located about half-way from the center and one of the outer edges (the "suburbs")?
List the planets in order from closest to the Sun to farthest away.
What is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune?