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- Multiple ChoicePlease save your changes before editing any questions.The three pieces of evidence for our current theory of the universe are:blueshift, CMB, moon landing.redshift, IBM, Andromeda galaxy.redshift, CMB, distribution of elements.doppler effect, light spectra, fusion.
- Multiple ChoicePlease save your changes before editing any questions.Galaxies that are redshifted are:actually blue.really far away.invisible.moving away from us.
- Multiple ChoicePlease save your changes before editing any questions.The universe is expanding! This means that:all of the galaxies are spreading out.the universe must have started from a single point.the universe is cooling down.all of the above.
- Multiple ChoicePlease save your changes before editing any questions.The CMB is:the remaining energy from the big bang.incredibly hot.visible to the human eye.only located in certain places in the universe.
- Multiple ChoicePlease save your changes before editing any questions.The only elements in the universe were hydrogen and helium until:the big bang.humans came along.stars began doing fusion.the redshift was discovered.
- Multiple ChoicePlease save your changes before editing any questions.Our theory of the universe was confirmed by the discovery of:fusion.cosmic microwave background radiation.the Andromeda galaxy.the Doppler effect.
- Multiple ChoicePlease save your changes before editing any questions.Light waves that are stretched out by objects moving apart:have a shorter wavelength.travel faster than the speed of light.are invisible.appear more red.
- Multiple ChoicePlease save your changes before editing any questions.CMB stands for:Colorful Mystic Background Rehearsal.Cosmic Mini Butterfly Repellent.Cosmic Microwave Background Radiation.Cute Microwave Button Reversal.
- Multiple ChoicePlease save your changes before editing any questions.
The temperature of the universe:
is constant.
varies between 20 to 6,000 degrees Fahrenheit.
has increased to about 10,000 degrees Celsius.
has cooled to about 2.7 Kelvin.
- Multiple ChoicePlease save your changes before editing any questions.The universe is ____________ years old.8.13 billion13.8 billion1.83 billion381 million
- Multiple ChoicePlease save your changes before editing any questions.The Big Bang:is NOT an explosion in space.is an expansion OF space.is our best explanation for the beginning of the universe.All of the above.
- Multiple ChoicePlease save your changes before editing any questions.The most abundant element in the universe today is:waterhydrogenoxygencarbon
- Multiple ChoicePlease save your changes before editing any questions.The greater the redshift:the faster the galaxy is moving.the shorter the light waves.the bigger the galaxy.the closer the galaxy.
- Multiple ChoicePlease save your changes before editing any questions.
What is true about these two galaxies?The Sombrero Galaxy is closer to us.The Pinwheel Galaxy is moving away from us more slowly.The Pinwheel Galaxy is moving towards us.The Sombrero Galaxy is not moving. - Multiple ChoicePlease save your changes before editing any questions.What is true about these stars?Both of these stars are moving away from us.Both of these stars are moving towards us.Both of these stars are blueshifted.The star Sirius is closer to us.
- Multiple ChoicePlease save your changes before editing any questions.
This image describes:
The redshift.
The CMB.
The distribution of each element in the universe.
The amount of time the universe has existed.
- Multiple ChoicePlease save your changes before editing any questions.This is a picture of:The CMB.The Milky Way.The universe in the future.A redshifted star.
- Multiple ChoicePlease save your changes before editing any questions.The universe is expanding. This means that:Galaxies are getting bigger.Atoms are getting bigger.The universe is creating more matter.The amount of space between galaxies is increasing.
- Multiple ChoicePlease save your changes before editing any questions.Without stars, we wouldn't have:HydrogenQuarksGoldProtons
- Multiple ChoicePlease save your changes before editing any questions.A Hoberman Sphere is:A galaxy really close to the Milky Way.A good model for our expanding universe.A huge space telescope.A slang British insult.