Black Holes

Black Holes

Assessment

Interactive Video

Physics, Science

11th Grade - University

Hard

Created by

Quizizz Content

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The video explores the fascinating phenomena that occur when a star dies, leading to the formation of white dwarfs, neutron stars, or black holes, depending on the mass of the core. It delves into the concept of escape velocity and how it relates to black holes, explaining the event horizon and common misconceptions. The video also covers the effects of black holes, such as spaghettification, and discusses Einstein's theory of space-time and time dilation. It concludes with a summary of key learnings about black holes and their impact on the universe.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to a star's core if it is less than 1.4 times the mass of the Sun?

It explodes as a supernova.

It becomes a neutron star.

It becomes a white dwarf.

It becomes a black hole.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the escape velocity of a neutron star?

11 kilometers per second

600 kilometers per second

300,000 kilometers per second

150,000 kilometers per second

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why can't the Sun become a black hole?

It is already a black hole.

It is too far from the Earth.

It is not massive enough.

It is too hot.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term used to describe the stretching effect experienced near a black hole?

Spaghettification

Time dilation

Gravitational pull

Event horizon

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to time as you approach a black hole?

It speeds up.

It reverses.

It remains constant.

It slows down.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term for the boundary around a black hole where the escape velocity equals the speed of light?

Photon sphere

Accretion disk

Event horizon

Singularity

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the effect called when light loses energy trying to escape a black hole's gravity?

Time dilation

Doppler effect

Gravitational redshift

Spaghettification

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