What is a light-year?

distance light travels in one year

the time it takes light to travel 300,000,000 meters

the time it takes light to travel to Earth from the Sun

Which correctly orders the items from smallest to largest?

Star, Star Cluster, Galaxy, Universe

Universe, Galaxy, Star Cluster, Star

Star, Star Cluster, Universe, Galaxy

Star, Galaxy, Star Cluster, Universe

What is a major difference in the composition of elliptical and spiral galaxies?

Elliptical galaxies have almost no gas or dust between stars

Elliptical galaxies vary more in shape than spiral galaxies

Spiral galaxies have almost no gas or dust between stars

Spiral galaxies only contain old stars

Place these objects in order from smallest to largest.

Planets, solar system, galaxy, universe

Planets, solar system, universe, galaxy

Solar system, planets, galaxy, universe

Galaxy, solar system, planets, universe

What are the the 3 types of galaxies?

Spiral Galaxies, Irregular Galaxies, and Elliptical Galaxies

Spiral Galaxies, Regular Galaxies, and Lliptical Galaxies

Milky Way, Elliptical Galaxies, and Spiral Galaxies

Milky Way, Elliptical Galaxies, and Irregular 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.

Does light travel instantaneously (right away)?

Light does not travel instantaneously; it takes time for light to travel through the universe.

Light travels instantaneously; it takes no time for light to travel through the universe.

When we look at images of astronomical bodies are we looking at them in the present?

Looking at current images of distant astronomical bodies is like looking back in time; the light that we see does not show what the object looks like now but how it looked when the light was emitted.

Looking at current images of distant astronomical bodies is like looking forward in time; the light that we see does not show what the object looks like now but how it will look when our galaxies align.

Looking at current images of distant astronomical bodies is like looking at a our current point in time; the light that we see shows what the object looks like now.

Classify Galaxies

Quiz

•

Other Sciences

•

8th - 10th Grade

•

Practice Problem

•

Hard

Charles Martinez

FREE Resource

Irregular

Irrational

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How are galaxies held together.

gas

dust

stars

gravitational attraction

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What type of galaxy is this?

Spiral

Elliptical

Irregular

Irrational

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Classify Galaxies

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What type of galaxy is this?

What type of galaxy is this?

What type of galaxy is this?

What type of galaxy is this?

What type of galaxy is this?

How are galaxies held together.

What type of galaxy is this?

Our Galaxy is called the

pulls clusters of stars together in most galaxies.

What type of galaxy is this?

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