Compare the characteristics of spiral and elliptical galaxies.

Spiral galaxies have more gas and dust, while elliptical galaxies have less.

Elliptical galaxies have more gas and dust, while spiral galaxies have less.

Both have the same amount of gas and dust.

How does the mass of a star affect its life cycle?

More massive stars have shorter lifespans.

More massive stars have longer lifespans.

Mass does not affect a star's life cycle.

Less massive stars become black holes.

Why are irregular galaxies often rich in gas and dust?

They are remnants of galaxy collisions.

They are newly formed galaxies.

They are located in the galactic halo.

They have a strong gravitational pull.

On the Hertzsprung-Russell diagram, what does the main sequence represent?

The stable period of a star's life

The period when a star becomes a red giant

Explain why spiral galaxies are often sites of active star formation.

They have a high concentration of gas and dust.

They are the oldest type of galaxy.

They have a strong gravitational pull.

They are located in the galactic halo.

What is the significance of the Milky Way's spiral arms?

They are regions of active star formation.

They contain most of the galaxy's old stars.

They are devoid of gas and dust.

They are the galaxy's gravitational center.

How does a star's position on the Hertzsprung-Russell diagram change as it evolves from the main sequence to a red giant?

It moves down and to the right.

Discuss the role of dark matter in the structure of galaxies.

It exerts gravitational forces that affect galaxy rotation.

It provides the light that makes galaxies visible.

It is the primary component of stars.

It is found only in spiral galaxies.

How do astronomers determine the distance of galaxies from Earth?

By using the redshift of their light

Explain the significance of the cosmic microwave background radiation in understanding the universe.

It provides evidence for the Big Bang theory.

It is the primary source of energy for galaxies.

It is responsible for galaxy formation.

It is found only in spiral galaxies.

What is the name of our galaxy?

Our galaxy is called the Milky Way galaxy

Our galaxy is called the Andromeda galaxy

Our galaxy is called the Grand spiral galaxy.

Our galaxy is called the Whirlpool galaxy.

A Hertzsprung-Russell diagram (H-R diagram) is used to…

classify stars by temperature and brightness

illustrate various wavelengths of light

show the distances between stars

differentiate between stars and planets

Select the correct order for a star's formation

1. A large cloud of gas and dust exists. 2. Gravity pulls gas and dust together. 3. A protostar is formed. 4. Nuclear fusion begins.

1. Nuclear fusion begins. 2. Gravity pulls gas and dust together. 3. A large cloud of gas and dust exists. 4. A protostar is formed.

1. Nuclear fusion begins. 2. A protostar is formed. 3. Gravity pulls gas and dust together. 4. A large cloud of gas and dust exists.

HR / Galaxies / Star Life Cycle Question Bank

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HR / Galaxies / Star Life Cycle Question Bank

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TEKS.SCI.8.9A, TEKS.SCI.8.9B, NGSS.HS-ESS1-3

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HR / Galaxies / Star Life Cycle Question Bank

51 questions

What is the first stage in the life cycle of a star?

Which type of galaxy is characterized by a flat, rotating disk containing stars, gas, and dust, and a central concentration of stars known as the bulge?

Using the Hertzsprung-Russell diagram, which type of star is typically the hottest?

Identify the galaxy type that lacks a distinct shape and structure.

Explain why stars in the main sequence phase are stable.

Describe the location of the Earth's solar system within the Milky Way galaxy.

What is the final stage of a massive star's life cycle?

Which type of galaxy is most likely to contain older stars and less gas and dust?

On the Hertzsprung-Russell diagram, where are the brightest stars located?

Compare the characteristics of spiral and elliptical galaxies.

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