Physics: Black Holes
Test Quiz
1. What powerful force allows black holes to absorb light?
a. Nuclear fusion
b. Electromagnetism
c. Gravity
d. Nuclear bonding
e. All of the above
2. How do scientists know that black holes exist?
a. By running experiments on the Sun
b. By observing objects and light around black holes
c. By viewing black holes with powerful telescopes
d. All of the above
e. None of the Above
3. How do black holes form?
a. When planets collide
b. When nuclear bombs explode
c. When comets strike planets
d. When giant stars explode
e. When asteroids hit stars
4. Where do super massive black holes likely exist?
a. At the center of the Solar System
b. Inside gas giant planets
c. At the center of galaxies
d. All of the above
e. None of the Above
5. True or False: Black holes are invisible because they don't reflect light.
a. TRUE
b. FALSE
c.
d.
e.
6. What do we call the boundary around a black hole where nothing can escape its gravity?
a. The Great Wall
b. Singularity
c. Supernova border
d. Pulsar
e. Event horizon
7. What is the center of a black hole called?
a. Iris
b. Singularity
c. Supernova
d. Pulsar
e. Event horizon
8. What is it called when an aging star explodes?
a. Iris
b. Singularity
c. Supernova
d. Pulsar
e. Event horizon
9. True or False: Black holes were first discovered by Ancient Egyptian astronomers around 3000 BCE.
a. TRUE
b. FALSE
c.
d.
e.
10. What makes the gravity of a black hole so strong?
a. Its large size and small mass
b. Nuclear reactions at its core
c. It spins at a rate faster than light
d. Its small size and large mass
e. All of the above
About this quiz: All the questions on this quiz are based on information that can be found on the Physics: Black Holes page at www.ducksters.com/science/black_hole.php.
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