Which correctly relate dark matter and dark energy to the Big Bang theory? Select the two correct answers.(1 point)
Responses
Through dark energy, the universe is expanding at a faster and faster rate.
Through dark energy, the universe is expanding at a faster and faster rate.
Dark energy is the source of 25 percent of the mass of the universe.
Dark energy is the source of 25 percent of the mass of the universe.
Because of dark matter, gravitational interactions cause galaxies to develop.
Because of dark matter, gravitational interactions cause galaxies to develop.
Without dark energy, structures in the early universe would never have developed.
Through dark energy, the universe is expanding at a faster and faster rate.
Without dark energy, structures in the early universe would never have developed.
Which statements about nuclear fission and nuclear fusion are true? Select the two correct answers. (1 point)
Responses
They both occur in the nucleus of an atom.
They both occur in the nucleus of an atom.
They both involve one atom splitting into two atoms.
They both involve one atom splitting into two atoms.
They both release large amounts of energy.
They both release large amounts of energy.
They both involve two atoms fusing into one atom.
They both occur in the nucleus of an atom.
They both release large amounts of energy.
Which statement about nuclear fission is correct?(1 point)
Responses
Nuclear fission is used to generate water at nuclear power plants.
Nuclear fission is used to generate water at nuclear power plants.
Nuclear fission releases small amount of energy.
Nuclear fission releases small amount of energy.
Nuclear fission takes place in the nucleus of atoms.
Nuclear fission takes place in the nucleus of atoms.
The fuel for nuclear fission is often helium.
Nuclear fission takes place in the nucleus of atoms.
What type of evidence does cosmic background radiation provide about the origins of the universe?(1 point)
Responses
It supports predictions of the composition of the early universe.
It supports predictions of the composition of the early universe.
It verifies that the early universe was once extremely hot.
It verifies that the early universe was once extremely hot.
It proves that the universe is expanding.
It proves that the universe is expanding.
It pinpoints the size of the original universe.
Question
Drag and drop the words into the correct locations.(2 points)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Three pieces of evidence of universe expansion support the Big Bang Theory. The first piece of evidence, which Edwin Hubble discovered, is that Response area. The second piece of evidence is the change in universal temperature. The temperature Response area . The third piece of evidence is that Cosmic Microwave Background radiation is found Response area.
Three pieces of evidence of universe expansion support the Big Bang Theory. The first piece of evidence, which Edwin Hubble discovered, is that galaxies are moving away from each other. The second piece of evidence is the change in universal temperature. The temperature decreases as the universe expands. The third piece of evidence is that Cosmic Microwave Background radiation is found throughout the universe.
What type of evidence does cosmic background radiation provide about the origins of the universe?(1 point)
Responses
It supports predictions of the composition of the early universe.
It supports predictions of the composition of the early universe.
It verifies that the early universe was once extremely hot.
It verifies that the early universe was once extremely hot.
It proves that the universe is expanding.
It proves that the universe is expanding.
It pinpoints the size of the original universe.
The correct answer is: It supports predictions of the composition of the early universe.
The Universe Unit Review Practice
5 of 105 of 10 Items
Question
Drag and drop the words into the correct locations.(2 points)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Three pieces of evidence of universe expansion support the Big Bang Theory. The first piece of evidence, which Edwin Hubble discovered, is that Response area. The second piece of evidence is the change in universal temperature. The temperature Response area . The third piece of evidence is that Cosmic Microwave Background radiation is found Response area.