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WorksheetsChapter 20 - Lesson 2: What do we know about stars?
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
What is a star?
a)
a huge, hot, glowing ball of gas
b)
the process inside a star that produces the star's energy
c)
the distance light travels in one year
d)
term used by scientists to describe a star's brightness
2.
What is nuclear fusion?
a)
star groupings in space
b)
a huge, hot, glowing ball of gas
c)
the process inside a star that produces the star's energy
d)
the distance light travels in one year
3.
What is a light year?
a)
term used by scientists to describe a star's brightness
b)
star groupings in space
c)
a huge, hot, glowing ball of gas
d)
the distance light travels in one year
4.
What is magnitude?
a)
the process inside a star that produces the star's energy
b)
term used by scientists to describe a star's brightness
c)
star groupings in space
d)
the process inside a star that produces the star's energy
5.
What is a constellation?
a)
term used by scientists to describe a star's brightness
b)
star groupings in space
c)
a huge, hot, glowing ball of gas
d)
term used by scientists to describe a star's brightness
6.
The brightness of a star we see from Earth is called
a)
absolute magnitude
b)
relative magnitude
c)
apparent magnitude
d)
obvious magnitude
7.
Scientists use absolute magnitude to measure the brightness of a star if every star were the same distance from
a)
the Sun
b)
the Moon
c)
the Earth
d)
Mercury
8.
The main gases that make up a star are
a)
hydrogen and helium
b)
hydrogen and sulfur
c)
helium and silicon
d)
hydrogen and chlorine
9.
The color of a star depends on
a)
where it is located in space.
b)
the color that is reflected from the Sun.
c)
how big it is.
d)
its surface temperature.
10.
The ancient Greeks named which of the following constellations after a handsome hunter who fell in love with the goddess Artemis?
a)
Leo
b)
Orion
c)
Gemini
d)
Scorpius
11.
What can you tell about a star based on its color?
a)
its approximate size
b)
its approximate mass
c)
its approximate temperature
d)
its approximate distance from Earth
12.
What does magnitude measure?
a)
a star's size
b)
a star's color
c)
a star's brightness
d)
a star's temperature
13.
We can see the stars because the following process produces light.
a)
nuclear fission
b)
nuclear fusion
c)
nuclear diffusion
d)
nuclear bonding
14.
The Big Dipper is part of one of the best-known constellations known as
a)
Orion
b)
Aries
c)
Leo
d)
Ursa Major
15.
Why do stars appear to move in the sky?
a)
The stars' apparent movement is caused by the stars' orbits.
b)
The stars' apparent movement is a result of Earth's movement.
c)
The stars' apparent movement is a result of the Sun's movement.
d)
The stars' apparent movement is a result of the life cycle of stars.
16.
Which group of people named the constellations?
a)
the ancient Greeks
b)
the ancient Chinese
c)
the ancient Romans
d)
the ancient Egyptians
17.
After a red giant has lost its outer, gaseous layers into space, what is the next stage in its life cycle?
a)
supergiant
b)
white dwarf
c)
black dwarf
d)
massive star
18.
Which type of star is the Sun?
a)
supergiant
b)
white dwarf
c)
massive star
d)
mid-sized or average star
19.
Why can't you see all 88 constellations in the night sky?
a)
Some constellations are visible only from the opposite side of Earth.
b)
They fade out and in every 100 hundred years.
20.
If two stars appear equally bright from Earth, are they the same distance from Earth?
a)
Yes
b)
No
c)
They could be, but they also could be different distances from Earth. One could be farther away and brighter than the other.
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