Chapter 28 Test: Planets, Stars, And Galaxies
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This is a quiz over the planets, stars, and galaxies and the contents of Chapter 28 including, true false, multiple choice, and fill in the blank. Answer the questions to the best of your ability and follow directions. Good luck :)
- 1.If a start is more massive, it is likely to have____.
- A.
A longer life.
- B.
A shorter life.
- C.
No life.
- D.
To live forever.
- 2.The Hertzsprung-Russell diagram plots the____.
- A.
Absolute magnitude verses the apparent magnitude.
- B.
Mass verses absolute magnitude.
- C.
Luminosity verses surface temperature.
- D.
Surface temperature verses mass.
- 3.The band on the Hertzprung- Russell diagram that runs from the upper left (high luminosity, high surface temperature) to the lower right (low luminosity, low surface temperature) is called____.
- A.
Super Giants.
- B.
White dwarfs.
- C.
Common sequence.
- D.
Main sequence.
- 4.Giant stars have diameters____.
- A.
10 to 100 times greater then the suns.
- B.
100 to 150 times greater than the sun.
- C.
10 to 100 million times greater than the sun.
- D.
100 to 150 million times greater than the sun.
- 5.
- A.
Very dim.
- B.
Always 500 times greater than our sun.
- C.
Relatively cool in temperature.
- D.
None of the above.
- 6.Stars that are nearing the end of their life and were once red giants are called______.
- A.
Red dwarfs.
- B.
Dead stars.
- C.
Purple Trolls.
- D.
White dwarfs.
- 7.A star begins its life in a cloud of gas and dust. The cloud is called a ____.
- A.
Nebula.
- B.
Neutron.
- C.
Galaxy.
- D.
Pulsar.
- 8.Glowing areas in the birth place of a star are called____.
- A.
Pulsars.
- B.
Nebulas.
- C.
Protostars.
- D.
Orions.
- 9.When a large star explodes as a supernova, most of the time it creates____.
- A.
Other little stars.
- B.
Comets.
- C.
Elements such as lead, copper, uranium and many more.
- D.
Nebulas.
- 10.The result of gases after a star explodes is called a ____.
- A.
Planetary nebula.
- B.
Supernova.
- C.
Gaseous core.
- D.
Shock wave.
- 11.What is the most abundant gas in the solar system?
- A.
Helium.
- B.
Iron.
- C.
Dust.
- D.
Hydrogen
- 12.When a star like the sun begins to die, its core temperature ______.
- A.
Increases.
- B.
Stays the same.
- C.
Decreases.
- D.
None of the above.
- 13.The remains of a star after a supernova is ____.
- A.
A quasar or a cloud.
- B.
A neutron star or blackhole.
- C.
A white dwarf or blue giant.
- D.
A black hole or white dwarf.
- 14.A pulsar is a ____.
- A.
Dead star.
- B.
A new-born star.
- C.
A rapidly spinning neutron star.
- D.
A rapidly spinning white dwarf.
- 15.A black hole is ____.
- A.
All of the below.
- B.
The densest object in the universe.
- C.
A very strong gravitational force.
- D.
The remnants of a star at least 15 times as massive as the sun.
- 16.What is apparent magnitude?
- A.
The measure of how bright a star appears to be to an observer on Earth.
- B.
A measure of how bright the star would be if all stars were at the same distance from Earth.
- C.
The brightness of a star.
- D.
How far away the star is from Earth.
- 17.The Earth turns from___.
- A.
South to North.
- B.
West to East.
- C.
East to West.
- D.
North to south.
- 18.How far away is an Astronomical Unit from Earth to the Sun?
- A.
11 inches.
- B.
151, 000 km.
- C.
13 million km.
- D.
150 million km.
- 19.The sun's apparent magnitude is ____.
- A.
300.
- B.
-26.7.
- C.
2.5.
- D.
-1.45
- 20.The Big Dipper is part of the constellation____.
- A.
Polaris.
- B.
Ursa Minor.
- C.
North Star.
- D.
Ursa Major.
- 21.The hottest star has a ____ color.
- A.
Yellow.
- B.
Blueish White.
- C.
Green.
- D.
Red.
- 22.If two stars have the same size temperature and are the same distance from Earth, the ____ star would be more luminous.
- A.
Bigger.
- B.
Smaller.
- C.
Imaginary.
- D.
Blue.
- 23.Stars that change in brightness as they expand and contract are called____.
- A.
White dwarfs.
- B.
Pulsating stars.
- C.
Steady stars.
- D.
Red giant stars.
- 24.The sun is about____% hydrogen.
- A.
69%.
- B.
37%.
- C.
93%.
- D.
27%.
- 25.The lower the stars magnitude number, the ____ the star is.
- A.
Brighter.
- B.
Lower.
- C.
Darker.
- D.
Higher.
- 26.The temperature of the Universe is gradually____.
- A.
Increasing.
- B.
Staying the same.
- C.
Decreasing.
- D.
Dissapearing.
- 27.How many light years is the sun from the Milky Way's center?
- A.
26,000 Light Years.
- B.
42,000 Light Years.
- C.
16,000 Light Years.
- D.
18,000 Light Years.
- 28.What is a galaxy?
- A.
The earth's orbit.
- B.
A single star.
- C.
The surface of the Moon.
- D.
A group of stars held together by gravity.
- 29.A _______ _____ is the full range of wavelengths of electromagnetic radiation.
- A.
Electromagnetic spectrum.
- B.
Emission spectrum.
- C.
Absorption spectrum.
- D.
Black hole.
- 30.A ____ _______ is a star with more than 100 times the mass of our sun.
- A.
Giant.
- B.
Supernova.
- C.
Super giant.
- D.
Red dwarf.
- 31.An _____ _______ shows the wavelengths of visible light that a glowing gas emits.
- A.
Emission spectrum.
- B.
Absorption spectrum.
- C.
White dwarf.
- D.
Rainbow.
- 32.
- A.
The super dense mass of the sun.
- B.
The super dense mass of neutrons that can result after the collapse of a massive star.
- C.
The moon's neutron balance between gravity and the surrounding stars.
- D.
A star with neutron friends.
- 33.A _____ _______ is the final stage of an extremely large star, with a gravitational field so intense that not even light can escape.
- A.
Earth's core.
- B.
The sun.
- C.
Neutron star.
- D.
Black hole.
- 34.The Big Bang model states that _____.
- A.
God created everything.
- B.
Debris magically appeared from another galaxy to form the Milky Way.
- C.
That million's of stars collided and sent debris every were.
- D.
There was a great expansion from a small dense object.
- 35.A very distant, extremely luminous celestial object that scientists consider to be a type of active galactic nuclei is a ___________.
- 36.__________ _______ are yellow supergiants whose cycles of brightness range from 1-50 days, but mostly 5 days.
- 37.________ is a neutron star that is spinning very rapidly.
- 38.A_____ ____ is a burst of light that results from the sudden collapse of an iron core of a massive star.
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