Black Holes
  • 1. What powerful force allows black holes to absorb light?
A) electromagnetism
B) all the answers
C) Nuclear fusion
D) Gravity
E) Nuclear bonding
  • 2. How do scientists know black holes exist?
A) All of these answers
B) by running experiments on the Sun
C) by viewing black holes with powerful telescopes
D) by observing objects and light around black holes
  • 3. How do black holes form?
A) when asteroids hit stars
B) when nuclear bombs explode
C) when giant stars explode
D) when comes strike planets
  • 4. Where do super massive black holes likely exist?
A) In the center of a planet
B) Inside gas giant planets
C) at the center of galaxies
D) at the center of the solar system
  • 5. True or False: Black holes are invisible because they don't reflect light.
A) False
B) True
  • 6. What do we call the boundary around a black hole where nothing can escape its gravity?
A) Supernova border
B) Event horizon
C) singularity
D) pulsar
  • 7. What is the center of a black hole called?
A) Iris
B) singularity
C) Pulsar
D) Supernova
  • 8. What is it called when an aging star explodes?
A) singularity
B) supernova
C) pulsar
D) iris
  • 9. True or False: Black holes were first discovered by Ancient Egyptians.
A) False
B) True
  • 10. What makes the gravity of a black hole so strong?
A) Nuclear reactions at its core
B) It spins at a rate faster than light
C) it's small size and large mass
D) It's large size and small mass
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