Understanding Black Holes

What is a black hole?

• A region in space where the gravitational pull is so strong that nothing, not even light, can escape.

• A large star that has exploded.

• A type of galaxy.

• A planet with a very strong magnetic field.

What is the event horizon of a black hole?

• The surface of a black hole.

• The point beyond which nothing can escape the gravitational pull of a black hole.

• The center of a black hole.

• The outermost layer of a black hole.

Which theory predicts the existence of black holes?

• Quantum Mechanics

• General Relativity

• String Theory

• Electromagnetism

What is the singularity in a black hole?

• The point where the mass of the black hole is concentrated.

• The outer layer of a black hole.

• The region where time stops.

• The area where light is trapped.

What is Hawking radiation?

• Radiation emitted by stars.

• Radiation that is theorized to be emitted by black holes.

• Radiation from the sun.

• Radiation from neutron stars.

Which of the following is a method used to detect black holes?

• Observing the gravitational effects on nearby objects.

• Directly observing the black hole with a telescope.

• Measuring the temperature of the black hole.

• Listening for sound waves from the black hole.

Tags

NGSS.HS-PS2-4

What is the Schwarzschild radius?

• The radius of the event horizon of a non-rotating black hole.

• The distance from the center of a black hole to its outer edge.

• The radius of the singularity.

• The radius of a rotating black hole.

What happens to time as you approach a black hole?

• Time speeds up.

• Time slows down.

• Time remains constant.

• Time reverses.

What is the term for the process by which a black hole loses mass and energy?

• Accretion

• Evaporation

• Fusion

• Fission

Which of the following is NOT a type of black hole?

• Stellar black hole

• Supermassive black hole

• Intermediate black hole

• Quantum black hole