Multiple choice

The arrangements of planets with smaller on either ends and big planets in the middle, supports which one of the following theories of origin of the solar system?

  1. Big Band theory

  2. Tidal Hypothesis

  3. Binary Star theory

  4. Cepheid theory

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Tidal Hypothesis proposes that a passing star exerted tidal forces on the sun, pulling out material that formed the planets. This would explain why smaller rocky planets are closer to the sun and larger gas giants are farther out. Big Bang (misspelled) theory explains universe origin, Binary Star theory involves two stars, and Cepheid theory relates to variable stars.