Back to All Flashcards
Card 1 of 5 0%
0Hard
0Learning
0Know It
Question
Loading…
Click to reveal answer
Answer
All 5 Cards
#1
Q: What is a light-year?
A: The distance light travels in one year ≈ 9.46 × 10¹² km.
#2
Q: What is a black hole?
A: A region of spacetime where gravity is so strong that nothing, not even light, can escape.
#3
Q: What type of star is our Sun?
A: A yellow dwarf (G-type main sequence star).
#4
Q: What is a supernova?
A: A powerful stellar explosion occurring at the end of a massive star's life.
#5
Q: What galaxy is Earth in?
A: The Milky Way galaxy.
Explore All 125 Free Decks