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Unit 2 TEST: My Place and Distance in Space

Total questions: 20

Worksheet time: 35mins

Name
Class
Date
1.

Which of the following best describes Earth’s specific location in space?

a)

within a solar system

b)

in  a cluster of galaxies

c)

at the edge of a supercluster.

d)

at the center of a spiral galaxy.

2.

Reorder the following from smallest to largest.

a)

Solar system

b)

Galaxy

c)

Local Group

d)

Local Supercluster

e)

Universe

1)
2)
3)
4)
5)
3.

Proxima Centauri is the closest star to Earth after the Sun and is located 4.3 light years away from Earth. How long does it take light from Proxima Centauri to reach Earth?

a)

1 year

b)

 4.3 years

c)

43 years

d)

10 trillion years

4.

If two stars are 100 light-years apart, what does this mean?

a)

One of the stars formed 100 years before the other.

b)

The stars are 100 million kilometers from each other.

c)

 It takes 100 years for light to travel from one star to the other.

d)

It would take 100 years for a spaceship to travel between these two stars.

5.

Cameron was asked to express the distance between the Milky Way galaxy and the Andromeda galaxy. What is the most appropriate unit of measurement to use and why?

4 lines
6.

Stars and nebulae make up the composition of which area of space?

a)

Local Group

b)

Galaxy

c)

Earth

d)

Solar System

7.

An astronomical unit (AU) is _________.

a)

Any very large unit, such as a light-year

b)

 The average distance between any two planets

c)

The average distance between the Sun and Earth

d)

    The average distance between the Sun and the Astro Belt

8.

Which two astronomical bodies are farthest apart?

a)

Earth and Mars

b)

Earth and the Sun

c)

Earth and the Moon

d)

Earth and Proxima Centauri (Star)

9.

Which unit of measurement is used to measure distances within our solar system?

a)

Km

b)

AU

c)

M

d)

Light Years

10.

Dakota and Amiya were discussing the best definition to describe the term, “lightyear”.  

What definition would be best?

a)

 The distance light can travel in a year

b)

The speed light travels

c)

How many years it takes light to be emitted

d)

How long it takes light to get to you from the sun

11.

Match the following astronomical bodies to their proper compositions

a)

Solar System

1.

Comets, planets, asteroids, meteors

b)

Galaxy

2.

Star and nebulae

c)

Universe

3.

Milky Way Galaxy

d)

Local Group

4.

A group of 3 galaxies

12.

What is the main difference between asteroid and comet?

a)

An asteroid and comet are made of the same thing.

b)

An asteroid has the same composition as a comet except a comet has an ice shell.

c)

An asteroid has the same composition as a comet except a an asteroid has an ice shell.

d)

An asteroid is on Earth and a comet is in space.

13.

What does a light-year measure?

a)

Brightness

b)

Time

c)

Distance

d)

Wavelength

14.

Describe when you would use each of the following units of measurement: km, light years, and AU. (1-2 sentences)

4 lines
15.

What does astronomical units and light-years have in common?

a)

Both measure the speed of light in a vacuum.

b)

Both measure the energy emitted by astronomical bodies.

c)

Both measure the amount of time it takes for light to reach Earth.

d)

Both measure the distance between objects in space

16.

The universe contains . . . .

a)

few black holes

b)

billions of galaxies

c)

millions of stars

d)

few wavelengths

17.

In the image , what does X represent?

a)

1 light-year

b)

1 meter

c)

1 year

d)

1 AU

18.

What holds clusters of matter together in the universe?

a)

gravity

b)

light

c)

radiation

d)

superclusters

19.

In one word, how many stars are in an galaxy?

4 lines
20.

Which correctly states the distances from Earth, from closest to farthest?

a)

Sun, Moon, Pluto, Asteroid Belt, Milky Way Galaxy

b)

Moon, Sun, Asteroid Belt, Pluto, Milky Way Galaxy

c)

Sun, Moon, Pluto, Asteroid Belt, Milky Way Galaxy

d)

Moon, Sun, Pluto, Asteroid Belt, Milky Way Galaxy