The early universe was(1 Point) contracting expanding, but the expansion was constant. expanding, and that expansion was due to radiation domination. expanding, but the expansion was accelerating due to dark matter.
Added by
Step 1
This expansion was not constant, but rather, it was accelerating. However, this acceleration was not due to dark matter, but rather due to a mysterious force known as dark energy. Show more…
Show all steps
Your feedback will help us improve your experience
Hubert Agamasu and 100 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Which statement accurately describes the origin and expansion of the universe? As the universe continues to expand, it gradually gets warmer. Galaxies that are farther away are moving away more slowly. Cosmic background radiation is leftover thermal energy from the big bang. Stars and galaxies formed almost immediately after the big bang occurred.
John I.
Dark energy I. causes the expansion of the Universe to accelerate. II. was first found from observations of distant supernovae. III. makes up 99.9% of the mass/energy of the Universe. IV. can be used to estimate the distance to galaxies. I and II I and III I, II and III I, III, and IV All of I, II, III, and IV
Ankur S.
The early universe was radiation dominated, and the present universe is matter dominated. ( $a$ ) At what temperature were the radiation and matter densities equal? (b) What was the age of the universe when this occurred?
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD