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Light Year

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

The distance light can travel in one year is ______________

a)

15,000 kilometers

b)

1 light-year

c)

15 Astronomical Units

d)

6,000 miles

2.

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

a)

inches

b)

kilometers

c)

miles

d)

Astronomical units

3.

What unit of measurement is used to calculate distance in our universe?

a)

astronomical units

b)

kilometers

c)

light years

d)

parsecs

4.

One light year is equal to:

a)

12 million million kilometres

b)

9.5 million million kilometres

c)

5.5 million million kilometres

d)

9 million kilometres

5.

What is the time taken for the light to travel between the Sun and Earth?

a)

4 minutes

b)

8 minutes

c)

12 minutes

d)

2 minutes

6.

a collection of stars around a gravitational center.

a)

quasar

b)

nebula

c)

universe

d)

galaxy

7.

Which unit of measure would be used to measure the distance from our solar system to the center of the MIlky Way?

a)

pc

b)

ly

c)

AU

d)

km

8.

Scientists use the light-year to describe the relationships between objects in space. What does a light-year measure?

a)

the distance that light can travel in one year

b)

the brightness of light that travels through space

c)

the number of years it takes light to travel to Earth

d)

the time it takes light to travel 1 million km

9.

What is the distance of Andromeda Galaxy measured from the Earth?

a)

1.7 million light years

b)

2.2 million light years

c)

28 million light years

10.

Proxima Centauri is ______ light years away.

a)

6.8

b)

2.5

c)

4.3

d)

5.4