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Worksheets5/24 CW: Stars and Galaxies
Total questions: 51
Worksheet time: 32mins
What is a large celestial body that is composed of gas and that emits light from nuclear fusion?
Nebula
Star
Galaxy
Planet
The Hertzprung Russell Diagram consists of two axis that are labelled...
Luminosity and Size
Luminosity and Temperature
Luminosity and Age
Compared to the rest of the stars, our sun is considered...
Extremely Large and Cold
Small with a very hot temperature
Medium size with medium temperature
The category that contains the most stars is...
Main Sequence
Supergiants
Giants
Which category is our Sun located in?
White Dwarfs
Supergiants
Main Sequence
Giants
What color of star is the hottest?
Blue
Red
Yellow
Orange
What holds a galaxy together?
pressure
glue
gravity
planets
The Milky Way Galaxy is a
Spiral Galaxy
Elliptical Galaxy
Peculiar Galaxy
Trash Galaxy
Which type of galaxy is pictured?
Elliptical
Irregular
Spiral
Barred-Spiral
Which type of galaxy is pictured?
Elliptical
Spiral
Barred-Spiral
Irregular
Which star has a surface temperature most similar to the surface temperature of Alpha Centauri?
Polaris
Betelgeuse
Procyon B
Sirius
Which star is hotter, but less luminous, than Polaris?
Deneb
Aldebaran
Sirius
Pollux
Which two stars are most similar in luminosity?
Betelgeuse and Barnard's Star
Procyon B and Proxima Centauri
Polaris and the Sun
Alpha Centauri and Sirius
Compared the the Sun, the star Betelgeuse is
less luminous and warmer
less luminous and cooler
more luminous and warmer
more luminous and cooler
Which of the following are characteristic of the surface temperature and luminosity of some white dwarf stars?
Surface Temperature: 5,000 K Luminosity: 100
Surface Temperature: 5,000 K Luminosity: 0.001
Surface Temperature: 10,000 K Luminosity: 100
Surface Temperature: 10,000 K Luminosity: 0.001
Which star is more massive than our Sun but has a lower surface temperature?
40 Eridani B
Sirius
Aldebaran
Barnard's Star
For other stars in our galaxy that go through a similar life cycle to our Sun, which star is currently in the late stage of its life cycle?
Alpha Centauri
Procyon B
Bernard's Star
Polaris
The approximate age of the universe is estimated to be
4.6 million years
4.6 billion years
13.8 million years
13.8 billion years
The theory that the universe is expanding is supported by data from the
nuclear decay of radioactive materials
nuclear fusion of radioactive materials
blue shift of light from distant galaxies
red shift of light from distant galaxies
Which evidence best supports the theory that the universe was created by an explosion called the Big Bang?
impact craters found on Earth
cosmic background radiation
the different compositions of terrestrial and jovian planets
the blue shift of light from distant galaxies
When a star less than our sun consumes all of its nuclear fuel, it will then become
a white dwarf
nova
supernova
black hole
The explosion of a massive star near the end of its life is known as a
Nova
Pulsar
Supernova
Nebula
Which process produces the energy radiated by a star when it becomes a main sequence star?
Radioactive decay
Nuclear fusion
Conduction
Convection
The final stage in the life cycle of the most massive stars is a
black hole
black dwarf
supergiant
white dwarf
Which star color indicates the hottest star surface temperature?
Blue
White
Yellow
Red
Which star is cooler and less luminous then the Sun?
Proxima Centauri
Pollux
Rigel
40 Eridan B
Compared to our Sun, the star Betelgeuse is
smaller, hotter, and less luminous
smaller, cooler, and more luminous
larger, hotter, and less luminous
larger, cooler, and more luminous
Which planet has a density that is less than the density of liquid water?
Mercury
Earth
Mars
Saturn
The diagram compares the relative diameters of 2 planets in our solar system. Which 2 planets have diameters that closely resemble this comparison?
Uranus and Neptune
Jupiter and Saturn
Earth and Mars
Mercury and Venus
Compared to the size and density of the Earth, the Moon has a
smaller diameter and lower density
smaller diameter and higher density
larger diameter and lower density
larger diameter and higher density
Which object in our solar system has the greatest density?
Jupiter
Earth
The Moon
The Sun
Compared to Neptune, Mercury moves more rapidly in its orbit because Mercury
is larger
is more dense
is closer to the Sun
has a less eccentric orbit
The density of the Sun is closest to the density of
Earth
Jupiter
Earth's moon
Mars
Which is the largest planet in our solar system?
Earth
Uranus
Jupiter
Saturn
Which planet's diameter is approximately 4 times Earth's diameter?
Venus
Jupiter
Saturn
Uranus
Which characteristic of the planets in the solar system increases as the distance from the Sun increases?
equatorial diameter
eccentricity of orbit
period of rotation
period of revolution
Which sequence of stars is listed in order of increasing luminosity?
Spica, Rigel, Deneb, Betelgeuse
Polaris, Deneb, 40 Eridani B, Proxima Centauri
Barnards Star, Alpha Centauri, Rigel, Spica
Procyon B, Sun, Sirius, Betelgeuse
Which star is cooler and less luminous than the Sun?
Proxima Centauri
Pollux
Rigel
40 Eridani B
Which 2 stars are most similar in luminosity?
Betelgeuse and Barnard's Star
Procyon B and Proxima Centauri
Polaris and the Sun
Alpha Centauri and Sirius
Compared with our Sun, the star Betelgeuse is
smaller, hotter, less luminous
smaller, cooler, more luminous
larger, hotter, less luminous
larger, cooler, and more luminous
Which star color indicates the coolest star surface temperature?
blue
white
yellow
red
Compared to other stars, the Sun is
among the hottest stars
among the smallest stars
very unique
about average in all respects
What type of star is Aldebaran?
White dwarf
Main Sequence
Giant
Supergiant
A Red Giant star would likely have a temperature of
2,700 K
4,000 K
6,400 K
10,000 K
What is the most common type of star?
White Dwarfs
Main Sequence
Giants
Supergiants
How long does it take the Sun to rotate (spin)?
27 days
59 days
243 days
23 hours 56 min 4 sec
A star is moving away from Earth
Blue shift
Red Shift
Stationary
A star is moving towards Earth
Red shift
Blue Shift
Neutral
