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Unit 7: Stars

Total questions: 17

Worksheet time: 17mins

Name
Class
Date
1.

As our sun continues through its life cycle, it will _________ and turn into a _______________.

a)

gradually get smaller and smaller until it dies out/ black hole

b)

Gradually get larger until its outer layers drift off/ white dwarf

c)

become denser and denser/ protostar

d)

become hotter and hotter blue/ hypergiant.

2.

All stars begin their life in a

a)

Main Sequence

b)

Nebula

c)

Protostar

d)

Black Dwarf

3.

Average size stars will turn into a _____ star next.

a)

protostar

b)

red giant

c)

supergiant

d)

black hole

4.

A massive star can end it's life as a ______ or ___________.

a)

neutron star/black hole

b)

main sequence star/ nebula

c)

supernova

nebula

d)

red giant

supergiant

5.

The H-R diagram classifies stars based on what factors?

a)

Temperature and luminosity

b)

Number of planets

c)

What constellation they're in

d)

Temperature and fusion

6.

Compared to a red giant star, a blue supergiant is...

a)

Hotter and brighter

b)

Hotter and not as bright

c)

Colder and brighter

d)

Colder and not as bright

7.

Which star has a longer life, a main sequence star or a blue giant?

a)

Main sequence star

b)

Blue giant

8.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
9.
Which of these stars is hottest?
a)
Red Star
b)
Yellow Star
c)
Orange Star
d)
Blue Star
10.
Compared to the rest of the stars, our sun is considered...
a)
Extremely Large and Cold
b)
Small with a medium temperature
c)
Medium size with medium temperature
11.
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
12.

What small, hot, faint objects are found at B?

a)

neutron stars

b)

black holes

c)

white dwarfs

d)

brown dwarfs

13.
What is the graph that shows the relations between a star's surface temperature and absolute magnitude?
a)
H-R Diagram
b)
Star Cluster Map
c)
Einstein's Diagram
d)
Newton's Chart of Stars
14.
The energy from the sun is created by a process called:
a)
nuclear fission
b)
nuclear fusion
c)
nuclear reaction
d)
nuclear core
15.
Energy is created in the core when two _____________ atoms join together to form a ______________ atom.
a)
helium, hydrogen
b)
carbon, hydrogen
c)
nitrogen, helium
d)
hydrogen, helium
16.
The brightness of a star as seen from earth is defined as:
a)

Apparent Magnitude

b)
Absolute Brightness
c)
Brightness
d)

Candid Light

17.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D