If a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be...

This is a trick question that cannot be answered

It isn't a star, it is a very large blueberry.

Which stars have the greatest red shift?

Stars farthest from Earth with the greatest speed.

Stars closest to Earth where we can see them better.

Stars nearest the Sun where light is more plentiful.

Stars in the nearest galaxy that are spinning.

If a star is being observed from Earth and it's light has shifted towards the blue side of the electromagnetic spectrum it would be...

This is a trick question that cannot be answered

It isn't a star, it is a very large blueberry.

Use the image to identify the motion of the object relative to Earth. Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.

It is moving away from Earth (Redshift)

It is moving towards Earth (Blueshift)

It is moving towards Earth (Redshift)

Are any of the galaxies moving towards Earth? Explain.

C. The wavelength is decreasing and the object is moving towards the blue end of the spectrum.

A. The wavelength is decreasing and the object is moving towards the Blue end of the spectrum.

B. The wavelength is increasing and the object is moving towards the red end of the spectrum

A. The wavelength is decreasing and the object is moving towards the blue end of the spectrum.

What does the Big Bang theory suggest?

The universe is continually expanding

The Milky Way is the only solar system

The universe started as a point and is moving towards each other

What was discovered using spectra?

That some solar systems have more than one star

A person would weigh less on on the Moon than on the Earth because . . .

Moon has less mass and therefore less gravity

Moon has more mass, and therefore more gravity

Moon has less mass, and therefore more gravity

Moon has more mass, and therefore less gravity

Why do all of the planets orbit the sun rather than Earth?

the sun is in the middle of the milky way

Which event happened LAST?

The sudden expansion of matter from a point of singularity

Gravity caused all matter in the universe to come together

The universe cooled and atoms were formed

Which event happened first?

The sudden expansion of matter from a point of singularity

Gravity caused all matter in the universe to come together

The universe cooled and atoms were formed

What happens to the wavelengths of energy if they are moving AWAY from a source?

The waves stretch out and get longer.

The waves compress and get shorter.

Which is NOT a result of using a spectroscope?

Determining the elements in star

Determining the temperature of a star

Determining the movement/speed of a star.

Unmanned space probes are used to explore outer space because:

It's too hard to see things far away

Why is the Hubble telescope located in space?

So its images arent distorted by Earth's atmosphere

So it can be closer to the stars it magnifies

They have very large optical lenses

So it can be operated by astronauts

Why are many large optical telescopes located on mountains?

to be above part of the atmosphere

because it is easier to build telescopes on mountains

Why must Ultra-Violet observing be done in space?

The ozone blocks most of the UV rays in the surface.

It’s hard to know exactly where the ozone hole will be to find UV images

It’s hard to use UV telescopes and radio telescopes together on the surface.

It’s hard to use UV X-Ray telescopes and radio telescopes together on the surface

What is the MAJOR problem with trying to see stars in or near a city?

Not as many people with telescopes

Why does nuclear fusion require high pressures and temperatures?

To overcome the electrostatic repulsion of the nuclei.

To provide enough energy to split the nucleus.

The two nuclei are both negatively charged and repel each other.

The process of fusion requires

Cool temperatures and no gravity

The CMB (Cosmic Background Radiation) is:

the remaining energy from the big bang.

only located in certain places in the universe.

ESS1.1,ETS2.1&PS1.2:Univers Expansion, SpaceTech &Nuclear Fusion

Authored by CARRIE BROYLES

Science

8th Grade

NGSS covered

Used 35+ times

ESS1.1,ETS2.1&PS1.2:Univers Expansion, SpaceTech &Nuclear Fusion

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52 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which model has greater gravitational attraction (if any)

Model A

Model B

Both Model A and Model B (same gravity)

Tags

NGSS.HS-PS2-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which system has the greater gravitational attraction between the two objects (if any)?

System A

System B

Same gravitational attraction fro System A and System B

Tags

NGSS.HS-PS2-4

NGSS.HS-ESS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which model has the greater gravitational attraction?

Model 1

Model 2

Neither: there is not gravitational attraction between the two objects

Tags

NGSS.HS-PS2-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A starship approaches a planet. As the ship gets closer the gravitational attraction will

Increase between the planet and starship

Decrease between the planet and starship

Stay the same

Tags

NGSS.HS-PS2-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The ____________ object always orbits the other object

More massive

Less massive

Bigger diameter

Smaller diameter

Tags

NGSS.HS-ESS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What keeps galaxies together?

stars

dust

gravity

dark matter

Tags

NGSS.HS-PS2-4

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Without gravity the stars in the galaxy would

continue to orbit in a circle

move in a random direction

move in a straight line

Tags

NGSS.HS-PS2-4

NGSS.HS-ESS1-4

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ESS1.1,ETS2.1&PS1.2:Univers Expansion, SpaceTech &Nuclear Fusion

Which model has greater gravitational attraction (if any)

Which system has the greater gravitational attraction between the two objects (if any)?

Which model has the greater gravitational attraction?

A starship approaches a planet. As the ship gets closer the gravitational attraction will

The ____________ object always orbits the other object

What keeps galaxies together?

Without gravity the stars in the galaxy would

Without gravity the moon would

Light emitted from a star or galaxy can be separated into a band of colors, called a ________.

If a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be...

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