Orgins Final Review (HW1-HW7)

1

What is the Astronomical Unit (AU)?

1

Which of the following correctly gives the Earth's cosmic address?

1

Which one has the correct order in levels of biological organization from the smallest
to the largest scales?

1

What is the speed of light?

1

The color of light is determined by its:

1

Light from distant objects seems:

1

What happens to the brightness of a light source if we double its distance from us?

1

The number of ___ in the nucleus of an atom determines what element a substance is.

1

When an electron drops from a higher orbital to a lower one:

1

The higher the frequency of an electromagnetic wave:

1

Red light has a _ frequency, _ energy and ___ wavelength than blue light.

1

Which of the following is sorted in order of increasing energy?

1

Which physical quantity describes how fast atoms bounce around in an object?

1

A cloud of cool, low-density gas in front of a hot source of thermal radiation produces
a/an:

1

All distant galaxies are moving away from us. What does this observational fact tell
us about the light of far away galaxies?

1

The amount of energy radiated per second from each square meter of a thermal
radiator strongly depends on...(Remember the Stephan-Boltzmann law)

1

A piece of hot steel bar emits:

1

What happens when we cool off an object?

1

According to Bohr's atomic model, what happens when an electron falls from an
upper energy level to a lower energy level?

1

The farther a galaxy is, the faster it is moving away from us. This was an
observation made by:

1

The cosmological principle states that:

1

What happens to light waves as it is traveling through empty space (no gas or dust
in the way)?

1

What is one main conclusion of Hubble’s Law?

1

If you take the inverse of Hubble’s constant, then what does that tell you about the
universe?

1

How did the Universe become transparent?

1

What happens when anti-matter and matter interact with each other?

1

Which one of the following are the four fundamental forces in the universe?

1

The theory of inflation says that:

1

How did the theory of inflation solve the flatness problem?

1

Which statement is correct about the big bang theory?

1

The initial matter perturbations which grew with time and later formed galaxies
and clusters of galaxies are observationally imprinted in the:

1

How long after the Big Bang was the CMB formed?

1

How do the temperature and matter density of the Universe change with time?

1

The curvature of the universe is:

1

If the density of the universe is than the critical density, then it will .
If the density of the universe is than the critical density, then it will .

1

The fate of the universe is controlled by:

1

The universe is made up of:

1

The Big Crunch is a cosmological scenario that says the future of our universe is:

1

The bending and magnifying of light due to gravity is known as:

1

Where do stars mostly form?

1

Which of the following is NOT a feature of the elliptical galaxies?

1

What is the Hubble’s tuning fork?

1

Which of the following is correct about the irregular galaxies?

1

Largest galaxies in rich clusters reside close to the ...

1

In rich clusters most galaxies are in the form of ... and ...

1

Most galaxies that are not in clusters are in the form of ... and ...

1

Which statement is NOT true about rich clusters of galaxies?

1

What seems to be playing an important role in keeping galaxy clusters together, is
the ...

1

The Metallicity (Fraction of heavy elements) of the Inter Galactic Medium is
usually ... that of the Interstellar Medium.

1

What process forms new elements in stars?

1

What will finally happen to the Sun?

1

What is the maximum mass that a stable white dwarf star can have (The
Chandrasekhar mass limit)?

1

What is the main source of energy in the Sun?

1

How do very massive stars die eventually?

1

What is the heaviest nucleus that can be formed in the core of very massive stars?

1

Very heavy elements such as uranium, gold and mercury are formed in ...?

1

Astronomers use supernovae type Ia to directly measure ...?

1

Which of the following describe the early stages in the formation of stars in the
right order?

1

Why is it difficult to find protostars using optical telescopes?

1

What is the composition of the gas between stars?

1

Why don't we have any star less massive than 0.08 times the mass of the Sun?

1

What is the Hertzsprung-Russell (H-R) diagram?

1

What mechanism prevents stars of mass less than 0.08 times the mass of the Sun from collapsing
under the influence of gravity?

1

What element is produced in the final stages of fusion inside a star similar to the Sun?

1

What is the definition of half-life for materials that undergo radioactive decay?

1

What is radioactive dating used for?

1

Which of the following should be among the predictions of any model of the solar
system’s formation?

1

Which of the following is the most successful model of solar system formation?

1

One explanation of why the planets near the Sun are composed mainly of rock and iron is
that ...?

1

What was the separation process in the formation of planets during which denser material
sank toward the center of bodies and lighter material floated toward the surface?

1

What are the two main processes that could have formed the atmosphere of planets?

1

Why is it difficult for smaller planets to form an atmosphere?

1

What are the main methods for detecting extra solar planets (Exoplanets)?

1

How do we detect planets using the transit method?

1

What parameters determine the environment of a planet?

1

Which statement is NOT correct about outer planets in the solar system?

1

The Earth's crust is mostly made up of ...?

1

In which layer of the Earth's interior, heat is mainly transported to upper layers by
convection?

1

Earthquakes and volcanoes on Earth are more active near ...?

1

What is the main source of the Earth's magnetic field?

1

Where is the the ''frost line'' (the division between the inner warm part and outer cold parts of the
solar system) located?

1

What is believed to be the origin of Earth's Moon?

1

Which statement is correct?

1

What is the origin of Oxygen in the Earth’s atmosphere?

1

If the thermal velocity of atmospheric gas is ___ the escape velocity of the planet, the
atmosphere can escape.

1

The Earth’s atmosphere is mostly composed of ___.

1

The higher the elevation on Earth, ___ the atmospheric pressure.

1

Which part of the Electromagnetic spectrum is more absorbed by Greenhouse gasses?

1

What is some evidence supporting that all continents were once united into one single continent?

1

Why was the continental drift hypothesis rejected at the time of proposal?

1

Which of the following supports the “seafloor spreading” hypothesis?

1

What mainly causes the Earth’s crust to be dynamically moving?

1

The Mid-Atlantic ridge is a result of ___?

1

Subduction of oceanic plates and formation of volcanic mountains, accompanied by earthquakes
is a result of ___?

1

In ___, the continental lithosphere cannot recycle. The crust thickens creating high mountains, a
wide plateau, and severe earthquakes.

1

Which of the following correctly describes the geological time scales in order of increasing
divisions of time?

1

Which of the following is NOT true about the early Earth?

1

The correct description of the Earth’s layers from inside out is given in which of the following
choices?

1

What is believed to be the reason for the late Heavy Bombardment between 4 to 3.8 billion
years ago?

1

When the Earth formed and the crust first cooled and solidified, what was the dominant rock
type?

1

What is the most common rock type on the Earth today?

1

Which of the following are possible causes for mass extinctions?

1

Ozone layer in the atmosphere blocks which part of the Sun’s light spectrum more?

1

When did oxygen start building up in the Earth’s atmosphere?

1

Why is there less CO2 in the atmosphere in the summer months, compared to the winter
months?

1

The smallest unit of life that can function independently and perform all the necessary functions
of life is ___.

1

A/An ___ cell has a central control structure called a nucleus, which contains the cell’s DNA.

1

Different independent parts of a eukaryotic cell that are assigned different functions are called
___.

1

What is correct about plant and animal cells?

1

Mitochondria are able to metabolize ___.

1

According to Endosymbiosis Theory, Eukaryotic cells are formed by:

1

Which of the following is a common characteristic of life?

1

Living things are made up of ___ amino acids.

1

What are the two main varieties of nucleic acids?

1

Which of the following is a genetic material that stores information for their own replication and
for the sequence of amino acids in proteins?

1

DNA bases are connected with ___?

1

What element is the main basis for life on Earth?

1

Three main types of cells are _____:

1

These types of cells have qualities of both Prokaryotes and
Eukaryotes:

1

The main kingdoms of eukaryotic cells are:

1

Origins 037 final review of all homework questions. I didn't have a chance to type homework 8 in here. So that homework is excluded

Orgins Final Review (HW1-HW7)

What is the Astronomical Unit (AU)?

Which of the following correctly gives the Earth's cosmic address?

Which one has the correct order in levels of biological organization from the smallest to the largest scales?

What is the speed of light?

The color of light is determined by its:

Light from distant objects seems:

What happens to the brightness of a light source if we double its distance from us?

The number of ___ in the nucleus of an atom determines what element a substance is.

When an electron drops from a higher orbital to a lower one:

The higher the frequency of an electromagnetic wave:

Red light has a ___ frequency, ___ energy and ___ wavelength than blue light.

Which of the following is sorted in order of increasing energy?

Which physical quantity describes how fast atoms bounce around in an object?

A cloud of cool, low-density gas in front of a hot source of thermal radiation produces a/an:

All distant galaxies are moving away from us. What does this observational fact tell us about the light of far away galaxies?

The amount of energy radiated per second from each square meter of a thermal radiator strongly depends on...(Remember the Stephan-Boltzmann law)

A piece of hot steel bar emits:

What happens when we cool off an object?

According to Bohr's atomic model, what happens when an electron falls from an upper energy level to a lower energy level?

The farther a galaxy is, the faster it is moving away from us. This was an observation made by:

Which one has the correct order in levels of biological organization from the smallest
to the largest scales?

Red light has a _ frequency, _ energy and ___ wavelength than blue light.

A cloud of cool, low-density gas in front of a hot source of thermal radiation produces
a/an:

All distant galaxies are moving away from us. What does this observational fact tell
us about the light of far away galaxies?

The amount of energy radiated per second from each square meter of a thermal
radiator strongly depends on...(Remember the Stephan-Boltzmann law)

According to Bohr's atomic model, what happens when an electron falls from an
upper energy level to a lower energy level?

The farther a galaxy is, the faster it is moving away from us. This was an
observation made by:

What happens to light waves as it is traveling through empty space (no gas or dust
in the way)?

If you take the inverse of Hubble’s constant, then what does that tell you about the
universe?

The initial matter perturbations which grew with time and later formed galaxies
and clusters of galaxies are observationally imprinted in the:

If the density of the universe is than the critical density, then it will .
If the density of the universe is than the critical density, then it will .