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Question 1

When a vibrating object is moving an observer, the measured frequency of the
vibrations will be lower than if the object and observer are both stationary. If the vibrating object is moving
an observer, the measured frequency of the vibrations will be higher that the actual
rate of vibration of the object. When a star is moving towards an observer on Earth, the light spectrum of
the star will appear compared to the light spectrum of the sun, which is considered to
be in Earth's frame of reference.
A)
Question 1
Select the correct answer. You must get ALL responses correct to score 2 points. (2 points)
(2 points)
B)
Question 2
Blueshift is observed when ___. (1 point)
(1 point)
as distant luminous object travels rapidly towards an observer
as distant luminous object travels rapidly away from an observer
a luminous object is stationary compared to an observer
a luminous object travels alongside an observer
 toward  blueshifted  away from
C)
Question 3
Which statements about nuclear fusion are
false
? Select the
two
correct answers.
You must get ALL answers correct to score 1 point.
(1 point)
(1 point)
The fuel for nuclear fusion is often uranium.
Nuclear fusion is used to generate electricity at nuclear power plants.
Nuclear fusion releases large amounts of energy.
Nuclear fusion takes place in the cores of stars.
D)
Question 4
Which statements describe ways that nuclear fission is different than nuclear fusion? Select the
two
correct answers.
You must get ALL answers correct to score 1point.
(1 point)
(1 point)
Nuclear fission is used to produce electricity at nuclear power plants.
Nuclear fission involves on large atom splitting into two smaller atoms.
Nuclear fission releases a huge amount of energy
Nuclear fission takes place in the nucleus of an atom.
E)
Question 5
As evidence supporting the Big Bang Theory, what does the redshift of light from galaxiesindicate? (1 point)
(1 point)
The universe is cooling off.
The universe is expanding.
The universe is 13.8 billion years old.
The universe is mainly hydrogen.
F)
Question 6
Which of these items provide evidence supporting the Big Bang Theory? Select the
two
correctitems.
You must get ALL answers correct to score 1 point.
(1 point)
(1 point)
cosmic background radiation
rate of star formation
sizes and shapes of distant galaxies
composition of matter in the universe
DARK MATTER
BARONIC MATTER
G)
Question 7
Drag each item to indicate whether it is a characteristic of dark matter or baryonic matter.
You must get ALL answers correct to score 2 points.
(2 points)
(2 points)
does not interact with electromagnetic radiation 
has been observed directly 
interactswith electromagnetic radiation 
interacts with baryonic matter 
does not interact with baryonic matter 
has not been observed directly 
Gravitational lensing looks like and is created by
from distant galaxies magnified by the gravity of dark matter around
the galaxy. Gravitational lensing is caused by the gravity of , which
causes the of the arcs.
H)
Question 8
Drag and drop the correct answers. You must get ALL answers correct to score 4
points. (4 points).
Gravitational lensing looks like __________ and is created by __________ from distant
galaxies magnified by the gravity of dark matter around the galaxy.
Gravitational lensing is caused by the gravity of ___________, which causes
the___________ of the arcs.
(4 points)
 distortion and magnification  rings of light  dark matter  arcs of light
The universe is made up of 2 types of matter: matter, which is made up of atoms, and
matter which is not.
Fritz Zwicky hypothesized that galaxies inside the Coma Cluster were being held intact by matter.
Scientists believe that galaxies would break apart if matter were absent causing the structures of
the galaxy to fall apart.
I)
Question 9
Select the correct answer for each drop down list. You must get ALL answers correct to score
4 points. (4 points)
(4 points)
J)
Question 10
How is dark energy related to the theory of the Big Bang? (1 point)
(1 point)
It causes the universe to expand.
It causes the spinning of galaxies.
It seeded the formation of galaxies and star clusters.
It causes the expansion of the universe to accelerate.
K)
Question 11
Which represents a correct match between ideas related to the formation of theuniverse? Select the
two
correct answers.
You must get ALL answers correct toscore 1 point.
(1 point)
(1 point)
glowing nebulae - dark energy
greatest percent of mass of universe - dark matter
accelerating expansion - dark energy
structures forming in the early universe - dark matter
L)
Question 12
Which of the following statements provide evidence to support the Big Bang Theory? Select the
two
correct answers.
You must get ALL answers correct to score 1 point.
(1 point)
(1 point)
The universe began as a very high density singularity.
Small spiral galaxies become larger elliptical galaxies when they collide.
Dark matter makes up the majority of matter in the galaxy.
The ratios of hydrogen and helium in the universe match those of the early universe.

1 answer

Here are the answers to the questions presented:

A) Your question is incomplete, as there's no specific question asked for A.

B) The correct answer for Blueshift is observed when:
as distant luminous object travels rapidly towards an observer.

C) The two false statements about nuclear fusion are:

  1. The fuel for nuclear fusion is often uranium.
  2. Nuclear fusion is used to generate electricity at nuclear power plants.

(Nuclear fusion commonly involves light elements like hydrogen, while uranium is used in fission.)

D) The two correct answers highlighting how nuclear fission is different from nuclear fusion are:

  1. Nuclear fission is used to produce electricity at nuclear power plants.
  2. Nuclear fission involves one large atom splitting into two smaller atoms.

E) The correct answer about evidence supporting the Big Bang Theory from the redshift of light from galaxies is:
The universe is expanding.

F) The two items providing evidence supporting the Big Bang Theory are:

  1. cosmic background radiation
  2. composition of matter in the universe

(Note: Depending on the context, both rates of star formation and sizes and shapes of distant galaxies could be relevant as well, but the most directly linked are the listed two.)

G) The drag-and-drop characteristics are:

  • Dark Matter:
    • does not interact with electromagnetic radiation
    • has not been observed directly
    • does not interact with baryonic matter
  • Baryonic Matter:
    • interacts with electromagnetic radiation
    • has been observed directly
    • interacts with baryonic matter

H) The completed sentence for gravitational lensing is:
Gravitational lensing looks like distortion and magnification and is created by rings of light from distant galaxies magnified by the gravity of dark matter around the galaxy. Gravitational lensing is caused by the gravity of dark matter, which causes the arcs of the arcs.

I) Your question is incomplete, as there's no specific question asked for I.

J) The correct answer regarding dark energy related to the theory of the Big Bang is:
It causes the expansion of the universe to accelerate.

K) The two correct matches between ideas related to the formation of the universe are:

  1. greatest percent of mass of universe - dark matter
  2. accelerating expansion - dark energy

L) The two statements providing evidence to support the Big Bang Theory are:

  1. The universe began as a very high density singularity.
  2. The ratios of hydrogen and helium in the universe match those of the early universe.

Feel free to ask any more questions or for further clarification!