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Universe Comprehensive Test

Authored by Jeremy Jones

Science

8th Grade

Used 5+ times

Universe Comprehensive Test
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33 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 3 pts

A researcher studies the light emitted by a distant star. The researcher finds that the light received from the star falls slightly closer to the blue end of the electromagnetic spectrum when compared to a similar source further from Earth. The researcher claims that the star is moving away from Earth.

Is the researcher correct? Why?

No. Light from any object moving toward the Earth shifts to blue-colored light.

Yes. All moving objects emit red-colored light.

No. The blue-colored light emission is due to the composition of the star.

Yes. Light from any object moving away from Earth shifts to blue-colored light.

2.

MULTIPLE SELECT QUESTION

15 mins • 3 pts

A group of students make a list of criteria that can be used as evidence of the age of the universe. Which of the criteria listed could be used as evidence of the age of the universe?

The amount of dust given off by exploding stars.

The rate at which galaxies are moving away from Earth.

The rate at which the light emitted by a star switches between red and blue wavelengths.

the amount of hydrogen present in star

3.

MULTIPLE CHOICE QUESTION

15 mins • 3 pts

Media Image

A student creates a model by placing raisins in bread dough and allowing the dough to rise for several hours. The student sketches the model before and after the dough rises.

The student claims that the model accurately describes the motion of the galaxies in the universe. What evidence from the model supports the student’s claim?


As the dough rises, the size of the raisins increases, resembling the expansion of the galaxies.

As the dough rises, the distance between the raisins decreases, indicating that the galaxies will collide.

As the dough rises, the size of the raisins decreases, resembling the emission of light from stars.

As the dough rises, the distance between the raisins increases, indicating that the galaxies are moving apart.

4.

MULTIPLE CHOICE QUESTION

15 mins • 3 pts

An astronomer looks at a star in the night sky. Based on his calculations the star's light is shifting towards the color blue. What does this mean about the star?

It's moving towards the astronomer

It's moving away from the astronomer

It's not moving at all

5.

MULTIPLE CHOICE QUESTION

15 mins • 3 pts

How old do we estimate the universe to be?

13.8 billion years old

25 million years old

13.8 million years old

8 billion years old

6.

MULTIPLE CHOICE QUESTION

15 mins • 3 pts

Media Image

Given the information in the spectral lines, what is the "unknown" element?

Beryllium

Copper

Strontium

Hydrogen

7.

MULTIPLE CHOICE QUESTION

15 mins • 3 pts

Media Image

What is the unknown gas?

Neon

Argon

Oxygen

Helium

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