answers verified to pass
When was it thought that everything around us was created?` - correct
answer ✔13.7 billion years ago
What is the big bang? - correct answer ✔A gigantic explosion that is believed
to have caused the universe to expand rapidly from a very dense hot state
and it continues to expand today
Nuclear reaction in which 2 or more atomic nuclei become very close and
collide at very high speeds to form the nucleus of a new element - correct
answer ✔What is nuclear fusion?
What is the sun fueled by? - correct answer ✔Nuclear Fusion
What is a main sequence star defined by? - correct answer ✔By where it
plots on a graph of the star's brightness against its temperature
star classsification - correct answer ✔what does the Hertszprung Russel
diagram deal with?
What is AB D or C temp and the luminisity? - correct answer ✔aboue 3,000
degrees and 0.02%
What happens when stars with the mass of the sun have burnt all their fuel? -
correct answer ✔Evolve into a white dwarf
, becomes a red giant or supergiant - correct answer ✔What happens when a
star exhauts all the hydrogen?
Does a massive star have a shorter lifespan? - correct answer ✔Yes
What kind of stars evolce into dwarf planets? - correct answer ✔Ones that
are 35% the mass of the sun
What happens to stars with up to 10x the mass of the sun? - correct answer
✔Red giant stage
collapse directly into black hole - correct answer ✔What happens when
massive stars explode
When did our solar system form? - correct answer ✔4.55 billion years ago
After the dramatic destruction of a massive star by a supernova explosion -
correct answer ✔How did the solar system form?
What is the formation of the Solar System - correct answer ✔nebular
hypothesis
What did the solar system form from? - correct answer ✔Nebular material
formed a nebula and the formation of the sun and the solar system is a
product of it - correct answer ✔What is the supernova explosion?