Nuclear Fission and Fusion

1.

Multiple Choice

30 sec

1 pt

__________________ occurs when the repelling electrical forces within a nucleus overpowers the attracting the attracting nuclear forces.

Nuclear Decay

Nuclear Fission

Nuclear Fusion

None of the above

2.

Multiple Choice

30 sec

1 pt

__________________ is the process in which two or more smaller nuclei combine to create a larger, more stable nuclei.

Nuclear Decay

Nuclear Fission

Nuclear Fusion

None of the above

3.

Multiple Choice

2 mins

1 pt

Where do chain reactions not occur and why?

The rare isotope U-235; as the U-235 absorbs neutrons, the chain reaction stops

Uranium ore deposits; as the U-238 absorbs electrons, the chain reaction stops

Uranium ore deposits; as the U-238 absorbs neutrons, the chain reaction stops

The rare isotope U-235; as the U-235 absorbs electrons, the chain reaction stops

4.

Multiple Choice

30 sec

1 pt

What is the major drawback to fission power?

Radioactive Waste

CO₂ Emissions

SO₂ Emissions

All of the Above

5.

Multiple Choice

45 sec

1 pt

In the equation E=mc², which of the following correctly represents one or constants?

M=the sum of the masses

E= the amount of energy absorbed

C²= the speed of light

All of the above

6.

Multiple Choice

30 sec

1 pt

T/F The three components of a nuclear fission reactor are the nuclear fuel combined with a moderator, the control rods, and water.

True

False

7.

Multiple Choice

2 mins

1 pt

In what order are high-energy lasers used to control nuclear fusion?

1.Steam is produced

2.Drop frozen pellets of hydrogen isotopes through the crossfire

3.Aim laser beams at a common point

4.The resulting heat will be carried off by molten Lithium

3 – 2 – 4 – 1

2 – 1 – 3 – 4

3 – 2 – 1 – 4

1 – 3 – 2 – 4

8.

Multiple Choice

30 sec

1 pt

A __________________ is a nuclear fission reactor that produces more nuclear fuel than it consumes.

Fission Reactor

Breeder Reactor

Core Reactor

Fusion Reactor

9.

Multiple Choice

30 sec

1 pt

What is NOT a benefit of a fission reactor?

Conserves Energy

Supplies plentiful energy

Produces carbon dioxide and other greenhouse gasses

Eliminates a megaton of sulfur oxides

10.

Multiple Choice

30 sec

1 pt

What does a magnetic bottle contain for fission research?

Atoms

Protons

Electrons

Plasmas

11.

Multiple Choice

30 sec

1 pt

How much of the total energy used in the United States is created by nuclear fission reactors?

1%

19%

68%

90%

12.

Multiple Choice

2 mins

1 pt

What deformation leads to fission and what forces dominate over the attracting nuclear forces?

Cellular deformation; attracting electrical forces

Nuclear deformation; repelling electrical forces

Cellular deformation; repelling electrical forces

Nuclear deformation; attracting electrical forces

13.

Multiple Choice

30 sec

1 pt

T/F When the process of fission releases energy, the total mass of the element is less than when it started.

True

False

14.

Multiple Choice

30 sec

1 pt

In nuclear reactions, the result is __________ bound nuclei.

Slightly stronger

Looser

More tightly

None of these

15.

Multiple Choice

30 sec

1 pt

What remains unchanged in a fusion event?

The number of nucleons

The number of protons

Energy

The number of electrons

16.

Multiple Choice

30 sec

1 pt

What is a tiny packet of energy that makes up light?

Proton

Neutron

Photon

Positron

17.

Multiple Choice

30 sec

1 pt

The most powerful laser, the Nova, can be found where?

NASA

Lawrence Livermore Laboratory

NOAA

This doesn’t exist

18.

Multiple Choice

30 sec

1 pt

At what speeds do atomic nuclei collide for fusion to occur and what charge do they have?

High speeds; positively charged

Low speeds; positively charged

High speeds; negatively charged

None of these

19.

Multiple Choice

30 sec

1 pt

In fusion, what problem does a magnetic field solve?

It gets too cold and the machines freeze up

Too much pressure accumulates during fusion

For funzies

The heat produced in fusion melts the materials of the container

20.

Multiple Choice

45 sec

1 pt

How do you calculate the mass per nucleon if you know the mass of a particular nucleus?

Add the number of nucleons to the mass of nucleus

Multiply mass of nucleus by the number of nucleons in it

Divide number of nucleons by the mass of nucleus

Divide mass of nucleus by the number of nucleons in it

21.

Multiple Choice

30 sec

1 pt

What is the half-life of plutonium?

18 months

24,000 years

10 days

50,000 years

22.

Multiple Choice

30 sec

1 pt

T/F Most nuclear fission reactions produce either 1 or 3 neutrons.

True

False

23.

Multiple Choice

45 sec

1 pt

___________ starts the fission of a uranium atom.

Energy

Protons

One Neutron

All of the above

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