Solar System 1
What evidence, discussed in class and in the journal, suggested we are living in the Milky Way galaxy?
The Milky Way appears as a band across the sky
This means to travel in a path around another object.
What is revolve or orbit
The type of model is used to demonstrate how the universe was formed.
Physical, Visual, Paper, or Computer?
What is a computer model.
The Milky Way galaxy is about 100,000 light-years across. What is a light year and why would we use this unit of measurement here instead of AU's?
A light year is the amount of time it take for light to travel in one year. We would use this here because an AU is too small of a measurement compared to a galaxy.
This is a rocky body with an irregular shape that is smaller than an asteroid and is known as a shooting star.
What is a meteoroid?
What would be the most difficult model to construct? The size of planets, shapes of galaxies, structure of solar system, or distances between the objects in the solar system.
distances between objects in the solar system
This is a natural body that revolves around the Earth.
Moon
Another Name for the Outer Planets?
Gas Giants
A student has four objects including a basketball, an apple, a marble, and a grape. Which object should be used to represent the sun in a model of the solar system?
Basketball
What force keeps the planets in orbit?
Gravity
This is a round object that is smaller than a planet but is not a moon and has an irregular orbit.
What is a dwarf planet?
Another name for the Inner Planets?
Rocky Planets
Mercury has a diameter of 4,878 km while Earth has a diameter of 12,756 km. What is the approximate scale ratio of Mercury to Earth’s diameter?
1:3, 1:12, 2:5, 3:1
1:3
Explain how galaxies are classified AND identify the factors that contribute to these classifications.
Elliptical - shape, Spiral - distinct arms coming out of center, Barred Spiral - bar shaped center, Irregular - no specific shape
Explain why light-years are used to measure distance within and between galaxies.
Light years are an enormous measure of distance which is needed for the size of galaxies. AU's or km would be way to small to measure these great distances.
Describe how technological advances have increased scientists’ understanding of the number of stars and galaxies in the universe.
Just like Galileo used the telescope to further our understanding of the heliocentric model, scientists are continually using new technology to prove/disprove theories and hypothesis'.
Why do some stars appear dimmer than others in the night sky?
Dimmer stars are farther away from Earth than other stars.
If you could be any NFL quarterback, who would you want to be?
Tom Brady