Formation and motion of the galaxies test (Major Grade #2 Part 2)

How old is the universe?

• 13.7 years old

• 13.7 million years old

• 13.7 billion years old

• 13.7 trillion years old

The time line shows how the past can be divided into two main types. What 4 points are they?

• unobservable universe and potentially observable universe

• fictional universe and nonfictional universe

• pre-star war universe and post-star war universe

• pre-solar system universe and post-solar system universe

Arrange the following events according to the time line; 1-Formation of the Solar System, 2-First galaxies and stars form, 3-High energy particles reactions, 4-First atoms form

• 1,2,3, and 4

• 4,3,2, and 1

• 3, 4, 2, and 1

• 2, 3, 4, and 1

How long does it take for the first nuclei to form after the Big Bang?

• a few minutes

• a few days

• a few years

• a few million years

Which type of galaxy is the Milky Way?

• Elliptical

• Spiral

• Irregular

• Circular

Which galaxy is the closest to the Milky Way?

• Whirlpool

• Triangulum

• Andromeda

• Magellanic

In what amount of time from the Big Bang will the Sun expand to become a Red Giant?

• 20 billion years

• 13.7 billion years

• 9 billion years

• 300,000 years

A student will be presenting her research about the universe. She would like to show a model of the universe. Which of the following items should the students use to model the universe?

• A cube like a tissue box because it represents the static shape of the universe and how energy and matter never change.

• A cylinder like a paper towel roll because it represents the static shape of the universe and how energy and matter never change.

• A balloon because it represents the shape the universe always had, and will always have.

• A balloon because it represents the shape of the universe and how energy and matter are expanding from a single point.

Galaxies contain on average about 100 billion stars. These stars are held together in galaxies by the force of

• friction

• gravity

• magnetism

• pressure

Which statement is true?

• The galaxies are moving toward us.

• The universe remains static or unchanged in motion.

• The galaxies are moving away from us.

• None of the above