CO Category 2 Astronomy

​CO : Category 2 (Astronomy)

By IRENE C. SANCHEZ

Astronomy

Multiple Choice

This layer is the visible "surface" of the sun that we see.

• The convection zone

• The corona

• The chromopshere

• The photosphere

Multiple Select

Which of these are considered the three interior layers of the sun?

• The core

• The radiation zone

• The convection zone

• The corona

Multiple Choice

A star is formed when:

• nuclear fusion begins

• a nebula becomes a protostar

• a supernova occurs

• All hydrogen is changed to helium

Multiple Choice

Our sun is currently in what star stage?

• Protostar

• Nebula

• Main Sequence

• Red Giant

Multiple Choice

Old stars can form new stars because

• A supernove explosion creates nebula

• A big star explodes into smaller stars

• A black hole takes light from old stars and gives it to new stars

Multiple Choice

What color are the hottest stars?

• red
• yellow
• orange
• blue

Multiple Choice

What is the color of the coolest stars?

• blue
• Yellow
• Red
• Orange

Multiple Choice

Which of the following shows the correct order of spectral types from coolest to hottest?

• O - B - A - F - G - K - M

• M - K - G - F - A - B - O

• A - B - F - G -K - M - O

Multiple Choice

Which of the following properties depends on the distance from Earth?

• Absolute magnitude

• Apparent magnitude

• Surface temperature

• Spectral type

Multiple Choice

Stars are classified by their brightness and temperature on the H-R diagram. How would you describe a white dwarf star, compared to most other stars?

• A white dwarf has a lower temperature and is brighter than most stars.

• A white dwarf has a higher temperature and is brighter than most stars.

• A white dwarf has a lower temperature and is not as bright as most stars.

• A white dwarf has a higher temperature and is not as bright as most stars.

Multiple Choice

Which star is brighter in terms of absolute magnitude: a star with an absolute magnitude of -1 or a star with an absolute magnitude of 3?

• The star with an absolute magnitude of -1

• The star with an absolute magnitude of 3

• Both stars have the same brightness

• Cannot be determined from the given information

Multiple Choice

What type of galaxy is this?

• Spiral

• Elliptical

• Irregular

Multiple Choice

This type of galaxy is active, young galaxy with a black hole at their center

• elliptical

• quasar

• spiral

• irregular

Multiple Choice

Stars are still forming in these types of galaxies, with a clearly defined structure.

One of the most common types of galaxies

What am I?

• Spiral

• Elliptical

• Irregular

Multiple Choice

a type of matter that fills space and is undetectable at the moment

• Dark Matter

• Invisiible Matter

• Dark Filler

• Empty Space

Multiple Choice

a change in wavelength of a wave due to the source and observer moving closer or farther apart

• Doppler Effect

• Siren Shift

• Duck Wake

• Distance Effect

Multiple Choice

leftover thermal energy from the big bang

• solar nebula

• cosmic background radiation

• planetesimal

• dark matter

Multiple Choice

The vast majority of galaxies in our universe are moving away from us.  We know this because we observe __________ in the galaxies absorption spectra.

• Redshift
• Blueshift
• Turbulance
• Superposition

Multiple Choice

What type of radiation in the universe is believed to the residue of the early universe?

• cosmic background microwave

• infrared rays

• radio waves

• ultraviolet waves

Multiple Choice

What is the central idea of the big bang theory?

• All matter in the universe started

  at a single point of origin.

• As the universe continues to

  expand, it will eventually

  collapse.

• When two or more galaxies

  collide, a big bang occurs.

• The current universe is at its

  original location of the cosmic

  explosion.

Multiple Choice

Most of the universe is made of

• visible matter

• dark matter

• dark energy

• dark energy and dark matter

Multiple Choice

A force that speeds up the expansion of the universe is called

• supernova

• gravity

• dark energy

• dark matter

Multiple Choice

What does dark matter not interact with?

• Time

• Black holes

• Light or normal matter

• Gravity

Multiple Choice

How does dark energy differ from dark matter?

• Dark energy is visible, dark matter is not

• Dark energy causes expansion, dark matter causes attraction

• Dark energy is a form of matter, dark matter is energy

• Dark energy interacts with light, dark matter does not

Multiple Choice

series of missions designed to send people to the moon and back

• Apollo

• Mercury

• Gemini

• Artemis

Multiple Choice

Cosmic Microwave Background Radiation is a form of _________.

• Matter

• Energy

• Visible Light

• Water

Multiple Choice

How does Cosmic Microwave Background Radiation support the Big Bang Theory?

• Microwaves are found everywhere in the universe.

• Microwaves occurred at the time of the Big Bang

• Microwaves are useful in our everyday lives

Multiple Choice

Hubble's Law describes that the galaxies that are the farthest away from us are...

• moving away the fastest.

• moving toward us the fastest.

• not moving at all.

• disappearing.

Multiple Choice

What year did humans broadcast a radio message containing information about the human race?

• 1980

• 1974

• 1999

• 1960

Multiple Choice

What is the habitable zone?

• the area in the universe where life could exist

• the area on a planet where life could exist

• the area in a galaxy where life could exist

• the area around a star where life on a planet could exist

Multiple Choice

What is the Fermi Paradox?

• Even with the huge number of planets in the Milky Way, we haven't seen any signs of aliens

• It would take a couple of million years to colonize the whole galaxy.

• There are three different possible levels for a civilization.

• There are no aliens in the universe.

Multiple Choice

Drake's equation predicts the possibility of _____ life or civilizations in our galaxy.

• microbial

• basic

• intelligent

• multi-cellular

Multiple Choice

This type of Supernova has very little remnants.

• Type I

• Type II

• Type A

• Type B

Multiple Choice

Which of the following is a distinguishing property of a neutron star?

• Spinning Rapidly

• Strong Magnetic Field

• Density beyond belief

• All of the above

Multiple Choice

What conditions must exist for a black hole to form?

• When the core remnants of a Supernova I are greater than 3 solar masses.

• When core remnants of a Supernova II are less than 3 solar masses.

• When core remnants of a Supernova II are greater than 3 solar masses.

• When the core remnants of any type of Supernova are greater than 1 solar mass.

Multiple Choice

There are two types of GRBs. The shorter ones that last only milliseconds come from ___

• galactic collisions

• supergiants

• hypernovae

• neutron star collisions

Multiple Choice

Every time we see a gamma ray burst, we’re witnessing ___

• a neutron star dying

• a galaxy dying

• a black hole being born

• a galaxy being born

Multiple Choice

Due to the USA’s distrust of the Soviets, we launch a series of satellites called Vela to detect…

• UV light

• X-rays

• Infrared

• Gamma-Rays

Multiple Select

What makes Quasars the most awesome astrophysical phenomena? (Check all that apply)

• The spear through black holes

• They have super massive black hole

• They are surrounded by a solar system sized whirl-pool of plasma that shines brighter than an entire galaxy.

• Quasars help shape our universe

Multiple Choice

What is a quasar?

• A type of star

• A small planet

• The extremely luminous nucleus of a galaxy

• A type of black hole

Multiple Choice

series of missions designed to send people to the moon and back

• Apollo

• Mercury

• Gemini

• Artemis

Multiple Choice

What is the main purpose of the New Horizons mission?

• To land on Pluto

• To explore the outer planets

• To return samples to Earth

• To orbit the Sun

Multiple Choice

What is the main purpose of the Curiosity rover's mast?

• To store samples

• To carry stereo cameras and a laser

• To provide power

• To communicate with Earth

Multiple Choice

What fundamental question does the Fermi Paradox address regarding extraterrestrial life?

• Why are there so few planets in the universe?

• Why haven't we found evidence of intelligent alien civilizations despite the vastness and age of the universe?

• How do black holes form in distant galaxies?

• What is the origin of the Milky Way galaxy?