Worksheets5.4
Total questions: 24
Worksheet time: 1hrs 2mins
Cosmic radiation comes from ....
Nuclear bombs
Nuclear Power stations
Space
Earth's core
Isotopes in objects
What does CMB stands for?
Cell and Molecular Biology
Cosmic Microwave Background
Neither
Critical Mass Balance
What is CMB?
electromagnetic atoms
radiation that fills the universe and can be detected in every direction
a faint glow of light that fills the universe
entire universe
CMB existed before the big bang?
True
False
What is Hubble's Law?
The farther the galaxy, the faster away it is moving.
The theory of the universe's creation.
Theory that the universe is made of matter and the anti-matter.
The Big Bang refers to
The creation of the solar system
The creation of the moon
The origin of the Universe
The origin of the heavy elements in a supernova
None of the above
What is the temperature of cosmic background radiation?
about 0 degrees Celsius
above 3,000 degrees Celsius
about 270 degrees Celsius
almost absolute zero
As the galaxy moves away from us, we see it as:
white shift
blue shift
dark matter
red shift
The farther away a galaxy is from Earth...
the slower that galaxy is moving away from Earth.
the faster that galaxy is moving away from Earth.
the faster that galaxy is moving toward Earth.
the slower that galaxy is moving toward Earth.
Cosmic Microwave Background Radiation is a form of _________.
Matter
Energy
Visible Light
Water
As galaxies move away from our galaxy
a shift on the electromagnetic spectrum is noticed. This phenomena is
called _____________.
redshift
blueshift
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
The "afterglow" of the energy from the origin of the universe that we see today.
Cosmic microwave radiation
sunlight
Doppler effect
Cosmic explosions
How is the "Big Bang" described?
an explosion
an expansion
a contraction
How does the Cosmic MicrowaveBackground Radiation (CMBR) mark and important milestone in the early history of the Earth.
CMBR originated as the first visible light. It marks the time when the universe transitioned from opaque to transparent.
The CMBR originated when the first massive starts in the universe began exploding as supernova shortly after the Big Bang.
The CMBR originated from the initial force that triggered the Big Bang. It is the remnant energy from the previous universe.
When did the universe begin?
1 billion years ago
14 billion years ago
10 billion years ago
50 billion years ago
During the first few minutes after the Big Bang, the universe was opaque. Light could not go through it. Why?
all the photons were being absorbed
the photons were attracted to other particles
there was nothing to produce photons
the mix of particles was so dense that photons could not get through
