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Stars

Total questions: 36

Worksheet time: 30mins

Name
Class
Date
1.
What word best describes our sun?
a)
Average
b)
Supergiant
c)
Dwarf
d)
Red Giant
2.
Why do other stars appear so much smaller than the sun?
a)
They are much smaller
b)
They are so far away
c)
They are not as bright
d)
They are dwarf stars
3.
What color of star is the hottest?
a)
Blue
b)
Red
c)
Yellow
d)
Orange
4.
What color of star is the coolest?
a)
Red
b)
Yellow
c)
Blue
d)
White
5.
What is the name of the largest stars?
a)
Protostars
b)
Supergiants
c)
Red Giants
d)
Dwarf Stars
6.
True or False
Stars are really close together in outer space.
a)
True
b)
False
7.
What is the name of the explosion at the death of a massive star?
a)
Supergiant
b)
Supernova
c)
Black Hole
d)
Nebula
8.
What are stars?
a)
Rocky bodies
b)
Hot exploding balls of gas
c)
5 pointed shapes
d)
Hollywood actors
9.
Which star is closest to Earth?
a)
Betelgeuse
b)
Orion
c)
the sun
d)
Antares
10.
The color of a star tells us its
a)
magnitude
b)
temperature
c)
size
d)
age
11.
Our sun is currently in what star stage?
a)
Protostar
b)
Nebula
c)
Main Sequence
d)
Red Giant
12.

What is the diagram called that shows the relationship between star size and temperatures?

a)

bar graph

b)

HR diagram

c)

star chart

d)

Star diagram

13.

Consider the color of the sun. Based on this color, what is the sun's approximate surface temperature?

a)

10,000-30,000

b)

6000-7500

c)

30000-60000

d)

<3500

14.

Based on evidence in the table, which star would appear the dimmest from Earth’s surface?

a)

Star A

b)

Star B

c)

Star C

d)

Star D

15.

A scientist discovers a new star. It is blue-white and is about 20,000 K. Which star is it most similar to?

a)

Sun

b)

Rigel

c)

Vega

d)

Canopus

16.

Absolute magnitude is defined as…

a)

mass of a star

b)

color of a star

c)

brightness of a star, as it appears from Earth

d)

brightness of a star independent from the distance of Earth

17.

About 90 percent of the stars in the universe, including the sun, are main sequence stars. What do all main sequence stars have in common?

a)

All main sequence stars are yellow like our sun.

b)

All main sequence stars are as bright as our sun.

c)

They are all undergoing fusion of helium into carbon within their cores

d)

They are undergoing fusion of hydrogen into helium within their cores

18.

White dwarfs stars are

a)

hot and dim

b)

cool and dim

c)

hot and bright

d)

cool and bright

19.
Which of the following is NOT a characteristic used to classify stars?
a)
Color
b)
Temperature
c)
Size
d)
Shape
20.
The brightness of a star as seen from earth is defined as:
a)
Apparent Brightness
b)
Absolute Brightness
c)
Brightness
d)
Candid Brightness
21.
A light year is a measurement of:
a)
Time
b)
Distance
c)
Gravity
d)
None of the Above
22.
An object whose gravity is so strong that nothing can escape.
a)
Planetary Nebula
b)
Supernova
c)
Neutron Star
d)
Black Hole
23.

Stars are made of mostly which two gases?

a)

Hydrogen and Helium

b)

Hydrogen and Oxygen

c)

Hydrogen and Nitrogen

d)

Hydrogen and Carbon

24.

What are the most abundant elements in stars?

a)

Oxygen & Nitrogen

b)

Hydrogen & Helium

c)

Hydrogen & Oxygen

d)

Helium & Nitrogen

25.
All stars are the same color and same size.
a)
True
b)
False
26.
The sun looks so large because it is a very, very big star.
a)
True
b)
False
27.

There are ____________ stars in the sky

a)

hundreds

b)

thousands

c)

billions

28.
Which is the correct order of stars from COOLEST to HOTTEST?
a)
blue, white, yellow, orange, red
b)
red, yellow, blue, white, orange
c)
red, white, yellow, orange, blue
d)
red, orange, yellow, white, blue
29.

Why does the sun seem to be larger than all other stars?

a)

The sun is the largest star

b)

The sun farther away that other stars

c)

The sun is the oldest star we can see

d)

The sun is the closest star to Earth

30.
The H-R diagram is a graph that shows the relationship between ______________ for stars. 
a)
temperature and color
b)
temperature and brightness
c)
brightness and color
d)
distance and brightness
31.
What word best describes our sun?
a)
Average
b)
Supergiant
c)
Dwarf
d)
Red Giant
32.

The main gases that burn within the sun are

a)

Oxygen and Nitrogen

b)

Hydrogen and Oxygen

c)

Neon and Sulfur

d)

Hydrogen and Helium

33.

Our Sun is average-sized, average temperature, and middle aged.

a)

False

b)

True

34.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
35.

The best description of a super giant star would be -

a)

hot and bright

b)

hot and dim

c)

average brightness and temp

d)

cool and bright

36.

Look at the H-R diagram. Which star is

sort of cool, dim (not too much light), and red?

a)

Betelguse

b)

Sirius B

c)

Procyon B

d)

Barnard's star

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