WorksheetsPractice-The Expanding Universe
Total questions: 19
Worksheet time: 10mins
Which statements describe the principles of the big bang theory? Check all that apply.
The universe is continuing to expand.
A massive explosion caused matter and energy to expand and form the universe.
The universe is slowly collapsing and getting smaller.
The universe expanded, but its size is now remaining constant.
What theory does cosmic background radiation support?
the steady-state theory
the theory of evolution
the Big Bang theory
Hubble measured the velocity of the movement of galaxies by using ________________
Hubble telescope
Doppler Effect
Dark Matter
Hubble’s law states that galaxies located farthest from the center of the universe ______________________than those closest to the center.
are moving more slowly
are moving faster
contain more dark matter
contain less dark matter
After our solar system began to form, dust and gas combined into small bodies that formed the planets. What are these small bodies called? (Hint: infinitesimal means very tiny particles, pay attention to the underlines words)
dwarf planets
gas giant planets
planetesimals
terrestrial planets
What element is needed to start a galaxy?
Hydrogen
Iron
Sulfur
Carbon
Which statements explain current theories about dark energy and dark matter? Check all that apply.
Space that appears empty actually contains dark energy and dark matter.
Dark matter does not emit electromagnetic radiation.
Scientists believe dark energy will cause the universe to collapse inward to a single point.
Scientists theorize that dark energy is causing the expansion of the universe to accelerate.
Which hypothesis is most supported by astronomers?
The universe is currently expanding and will continue to expand.
Stars could burn out, causing the universe to become dark and cold.
Gravity could pull galaxies back together, causing a reverse of the big bang.
Dark energy will pull the universe together to form a massive black hole.
When did the big bang occur?
5000 year ago
13.7 billion years ago
2 million years ago
unknown
The farther away galaxies are from us, the _______________ it is that they moving away from us.
more uncertain
slower
faster
more unpredictable
How is the universe rising raisin bread dough? Or, like a ballon with dots on it?
As the dough sits there it becomes smaller and smaller.
As the dough expands the raising bunch up together.
As the dough contracts, it become ready for the oven.
As the dough expands, the raising move further apart from each other.
In which direction are nearly all galaxies moving?
toward each other
away from each other
colliding into one another
in the direction of Earth
leftover thermal energy from the big bang
solar nebula
cosmic microwave background radiation
planetesimal
dark matter
matter that does not give off electromagnetic radiation so it cannot be detected...
solar nebula
big bang
dark matter
dark energy
Which happened first in the development of our universe?
sub atomic particles
Hydrogen & Helium
stars form
earth forms
Quarks
What concerns do you have in my class now that we have 4 weeks left till the end of the year? Are you making up your missing assignments (for the last 2 weeks only) , doing some extra credits to boost your grade up, or just be lenient to your circumstances? Let's reflect some about it.
Does Mrs. Meydan think about your grade and make efforts for you to pass her class?
Yes
No
I am not sure
