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WorksheetsTopic C: Stellar Tracks
Total questions: 15
Worksheet time: 5mins
Name
Class
Date
1.
It is the process of measuring the apparent brightness of stars.
a)
Units of brightness
b)
Magnitude Scale
c)
Photometry
d)
Luminosity
2.
It is the most important characteristic of a star.
a)
Luminosity
b)
Brightness
c)
Temperature
d)
Magnitude
3.
This scale is what astronomers used in expressing how bright a star looks from more than 2000 years ago even being called a complicated system
a)
Color Scale
b)
Temparature Scale
c)
Brightness Scale
d)
Magnitude Scale
4.
This color dominates the visible light output of very hot stars (with much additional radiation in ultraviolet
a)
Blue
b)
White
c)
Yellow
d)
Orange
5.
It was a star that was very difficult to observe because they are extremely faint and cool
a)
Blue Dwarf
b)
Yellow Blue Dwarf
c)
Brown Dwarf
d)
Red Dwarf
6.
How many brightest stars in our sky are found within 26 light-years of the sun?
a)
4
b)
6
c)
8
d)
10
7.
_________ is the distance that light travels in a year
a)
Lightyear
b)
Kilometer
c)
Lunar Distance
d)
Astronomical Unit
8.
It is a star that can still not be seen without a telescope because it has such a low luminosity.
a)
Proxima Centauri
b)
Sirius
c)
Vega
d)
Alpha Centauri
9.
The contrast between two samples of stars, those that are close to us and those that can be seen with the unaided eye, is an example of a ______.
a)
Natural selection
b)
Selection Effect
c)
Selection Bias
d)
Random Selection
10.
1 light year =__________
a)
9.761 × 10^15 metres
b)
9.561 × 10^15 metres
c)
9. 661 × 10^15 metres
d)
9.461 × 10^15 metres
11.
What is a birth of a star called?
a)
Protostar
b)
Electrostar
c)
Neurostar
d)
Starla
12.
What is the death of a star called?
a)
Supernova
b)
Hypernova
c)
Slownova
d)
Fastestnova
13.
These are the stars that have burned up. All of the hydrogen they once used as a nuclear fuel
a)
Violet Dwarf Star
b)
White Dwarf Star
c)
Green Dwarf Star
d)
Pink Dwarf Star
14.
It is a luminous giant star of low or intermediate mass in a late phase of stellar evolution
a)
Purple Giant Star
b)
Red Giant Star
c)
Green Giant Star
d)
Pink Giant Star
15.
It is born in vast clouds of gas and dust.
a)
Stars
b)
Sun
c)
Moon
d)
Comet
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