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Understanding the Universe

Understanding the Universe

Assessment

Interactive Video

Physics

9th - 10th Grade

Practice Problem

Hard

Created by

Jennifer Brown

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the approximate distance light travels in one year?

9 trillion kilometers

1 quintillion kilometers

100 billion kilometers

1 trillion kilometers

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How wide is the Milky Way galaxy in light years?

46 billion light years

100,000 light years

2.5 million light years

8 light hours

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the estimated diameter of the observable universe?

13.8 billion light years

90 billion light years

100,000 light years

46 billion light years

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What analogy is used to explain the expansion of space?

A balloon being inflated

A loaf of raisin bread rising

A sponge soaking up water

A rubber band stretching

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to light as space expands?

It changes direction

Its wavelength stretches

Its wavelength shortens

It becomes brighter

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term used to describe the stretching of light's wavelength due to space expansion?

Doppler effect

Light bending

Redshift

Blueshift

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the expansion history of the universe determined?

By counting the number of galaxies

By measuring the speed of light

By observing the color of stars

By analyzing cosmological redshift

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