Earth's gold formed by stellar collisions, scientists say

Earth's gold formed by stellar collisions, scientists say

Assessment

Interactive Video

Science, Physics

11th Grade - University

Hard

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The video discusses the observation of gamma ray bursts and the collision of neutron stars. It reveals that such mergers, occurring once every 10 millennia in our galaxy, eject heavy elements like gold. Scientists estimate that these events produce gold equivalent to the weight of 10 moons.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What cosmic event is associated with the observation of gamma ray bursts?

The birth of a new star

The collision of two neutron stars

The explosion of a supernova

The formation of a black hole

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How often do neutron star mergers occur in our galaxy?

Once every 1000 years

Once every 500 years

Once every 10 millennia

Once every 100 years

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What elements are ejected after the collision of neutron stars?

Radioactive elements only

Gaseous elements like oxygen and nitrogen

Light elements like hydrogen and helium

Precious metals and other heavy elements

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the estimated amount of gold produced by a neutron star merger?

Equivalent to the weight of 10 Earths

Equivalent to the weight of 10 moons

Equivalent to the weight of 10 suns

Equivalent to the weight of 10 asteroids

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a consequence of neutron star mergers?

Production of heavy elements

Formation of black holes

Destruction of nearby planets

Creation of new galaxies