Question 1

A nucleon has more potential energy with respect to a nucleus when it is

Accepted Answer

A) inside the nucleus. 
B) outside the nucleus. 
C) both the same 
A) inside the nucleus. 
B) outside the nucleus. 
C) both the same

Question 2

Compared to a neutron bouncing off a carbon nucleus,a neutron bouncing off a hydrogen nucleus loses

Accepted Answer

A) less speed. 
B) more speed. 
C) the same amount of speed. 
A) less speed. 
B) more speed. 
C) the same amount of speed.

Question 3

U-235 and Pu-239 are both

Accepted Answer

A) radioactive isotopes. 
B) fissionable isotopes. 
C) heavier than lead. 
D) all of these 
E) none of these 
A) radioactive isotopes. 
B) fissionable isotopes. 
C) heavier than lead. 
D) all of these 
E) none of these

Question 4

The function of graphite in the first atomic reactor was to

Accepted Answer

A) absorb fast neutrons. 
B) slow fast neutrons. 
C) emit fast neutrons. 
D) moderate uranium isotopes. 
E) none of these 
A) absorb fast neutrons. 
B) slow fast neutrons. 
C) emit fast neutrons. 
D) moderate uranium isotopes. 
E) none of these

Question 5

Uranium-235,uranium-238 and uranium-239 are different

Accepted Answer

A) elements. 
B) ions. 
C) isotopes. 
D) none of these 
A) elements. 
B) ions. 
C) isotopes. 
D) none of these

Question 6

When neptunium emits a beta particle the result is

Accepted Answer

A) a different isotope of neptunium. 
B) uranium. 
C) plutonium. 
D) lead. 
E) none of these 
A) a different isotope of neptunium. 
B) uranium. 
C) plutonium. 
D) lead. 
E) none of these

Question 7

The energy release in both fission and fusion is mainly in the form of

Accepted Answer

A) kinetic energy of fragments. 
B) alpha radiation. 
C) beta radiation. 
D) gamma radiation. 
E) a combination of alpha,beta,and gamma radiation. 
A) kinetic energy of fragments. 
B) alpha radiation. 
C) beta radiation. 
D) gamma radiation. 
E) a combination of alpha,beta,and gamma radiation.

Question 8

Detonation of a fusion-type hydrogen bomb is started by

Accepted Answer

A) splitting a small piece of uranium. 
B) pressing together several small pieces of uranium. 
C) igniting a small fission bomb. 
D) turning on a laser cross fire. 
E) none of these 
A) splitting a small piece of uranium. 
B) pressing together several small pieces of uranium. 
C) igniting a small fission bomb. 
D) turning on a laser cross fire. 
E) none of these

Question 9

Electrical forces inside a nucleus contribute nuclear

Accepted Answer

A) stability. 
B) instability. 
C) both of these 
D) none of these 
A) stability. 
B) instability. 
C) both of these 
D) none of these

Question 10

If all the uranium in the world were exhausted,breeder reactors would be

Accepted Answer

A) used much more than they are now. 
B) researched more than they are now. 
C) considered more seriously than they are now. 
D) relics of a brief age. 
E) none of these 
A) used much more than they are now. 
B) researched more than they are now. 
C) considered more seriously than they are now. 
D) relics of a brief age. 
E) none of these

Question 11

The nucleus with the greatest mass is

Accepted Answer

A) hydrogen. 
B) iron. 
C) lead. 
D) uranium. 
E) plutonium. 
A) hydrogen. 
B) iron. 
C) lead. 
D) uranium. 
E) plutonium.

Question 12

Could you get rid of plutonium contaminating a soil sample by bombarding it with neutrons?

Accepted Answer

A) No. 
B) Yes,but you might not like what you got in its place. 
C) Not enough information is given. 
A) No. 
B) Yes,but you might not like what you got in its place. 
C) Not enough information is given.

Question 13

Between nuclear fission and nuclear fusion,radioactive by-products are more characteristic of nuclear

Accepted Answer

A) fission. 
B) fusion. 
C) both of these 
D) neither of these 
A) fission. 
B) fusion. 
C) both of these 
D) neither of these

Question 14

Compared to the energy produced by fissioning a gram of uranium,the energy produced by fusing a gram of deuterium is

Accepted Answer

A) more. 
B) less. 
C) the same. 
A) more. 
B) less. 
C) the same.

Question 15

Which shape uses the smallest amount of material when creating a critical mass?

Accepted Answer

A) cube 
B) elongated box 
C) cone 
D) sphere 
E) none of these 
A) cube 
B) elongated box 
C) cone 
D) sphere 
E) none of these

Question 16

Reactions that take place in a breeder reactor change

Accepted Answer

A) elements into different elements. 
B) molecules into different molecules. 
C) ions into different ions. 
D) all of these 
E) none of these 
A) elements into different elements. 
B) molecules into different molecules. 
C) ions into different ions. 
D) all of these 
E) none of these

Question 17

In nuclear fission and nuclear fusion reactions,the amount of mass converted to energy of other forms is

Accepted Answer

A) less than 1%. 
B) about 10%. 
C) about 20%. 
D) about 30%. 
E) more than 30%. 
A) less than 1%. 
B) about 10%. 
C) about 20%. 
D) about 30%. 
E) more than 30%.

Question 18

If iron were used as nuclear fuel,it would be best

Accepted Answer

A) fused. 
B) fissioned. 
C) neither fused nor fissioned. 
A) fused. 
B) fissioned. 
C) neither fused nor fissioned.

Question 19

Fissioning an iron nucleus yields a net

Accepted Answer

A) absorption of energy. 
B) release of energy. 
C) neither absorption nor release of energy 
A) absorption of energy. 
B) release of energy. 
C) neither absorption nor release of energy

Question 20

The mass of a nucleon is greatest where its potential energy is

Accepted Answer

A) least. 
B) greatest. 
A) least. 
B) greatest.

Exam 34: Nuclear Fission and Fusion

A nucleon has more potential energy with respect to a nucleus when it is

Compared to a neutron bouncing off a carbon nucleus,a neutron bouncing off a hydrogen nucleus loses

U-235 and Pu-239 are both

The function of graphite in the first atomic reactor was to

Uranium-235,uranium-238 and uranium-239 are different

When neptunium emits a beta particle the result is

The energy release in both fission and fusion is mainly in the form of

Detonation of a fusion-type hydrogen bomb is started by

Electrical forces inside a nucleus contribute nuclear

If all the uranium in the world were exhausted,breeder reactors would be

The nucleus with the greatest mass is

Could you get rid of plutonium contaminating a soil sample by bombarding it with neutrons?

Between nuclear fission and nuclear fusion,radioactive by-products are more characteristic of nuclear

Compared to the energy produced by fissioning a gram of uranium,the energy produced by fusing a gram of deuterium is

Which shape uses the smallest amount of material when creating a critical mass?

Reactions that take place in a breeder reactor change

In nuclear fission and nuclear fusion reactions,the amount of mass converted to energy of other forms is

If iron were used as nuclear fuel,it would be best

Fissioning an iron nucleus yields a net

The mass of a nucleon is greatest where its potential energy is

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