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Nuclear Power Plant Works

Authored by Charles Martinez

Chemistry

9th Grade

NGSS covered

Nuclear Power Plant Works
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6 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A sub-atomic event in which a uranium nucleus splits into lighter radioactive materials, neutrons, gamma rays and neutrinos is called a:

Fusion

Chain reaction

Enrichment

Fission reaction

Tags

NGSS.HS-PS1-8

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The series of events in which neutrons split from uranium nuclei lead to the splitting of more uranium nuclei is called a:

Fission products

Chain reaction

Isotopes

Neutrinos

Tags

NGSS.HS-PS1-8

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The concentration of the lighter isotope of uranium, uranium-235, is vert low in nature relative to the abundance of the heavier uranium-238. In most modern reactors, the abundance of uranium-235 in the fuel needs to be enriched by a factor of:

2-3

11-18

130-235

4-7

Tags

NGSS.HS-PS1-8

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a nuclear reactor were to have a meltdown, radioactive materials could escape in the form of gases from the reactor into the atmosphere and harm humans and the environment. One safety system that might be able to prevent such an escape is a:

Centrifuge

Control rod

Containment building

Eectric turbine-generator

Tags

NGSS.HS-ETS1-3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Plutonium is a radioactive material, exposure to which is hazardous to human health, and is one of the few materials that can be used to make a nuclear weapon. The time it takes for half of any initial quantity of plutonium to decay into stable non-radioactive products is roughly:

24 hours

24 days

24 years

24,000 years

Tags

NGSS.HS-PS1-8

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What substance is used as a moderator to scatter and slow down neutrons just enough to increase their capture by Uranium and raise the rate of fission?

Graphite

Purified water

Uranium-238

Both A & B

Tags

NGSS.HS-PS1-8

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