AnswersPhysicsFission and Fusion

Fission and Fusion — Quiz Answers

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1
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How are nuclear reactions used to meet the world’s energy needs?

A
Both fusion and fission are used to generate electricity, but more fusion reactors than fission reactors are in use.
B
Fission reactors are used to generate electricity, but fusion is not yet practical enough to be used.
C
Both fusion and fission are used to generate electricity, but more fission reactors than fusion reactors are in use.
D
Fusion reactors are used to generate electricity, but fission is not yet practical enough to be used.
2
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Which are advantages of using nuclear reactors to generate electricity? Choose three correct answers.

A
Nuclear power produces relatively low carbon dioxide emissions.
B
Nuclear power uses nonharmful fuel.
C
Nuclear power produces no hazardous byproducts.
D
Nuclear power is readily available.
E
Nuclear power has a high output.
3

Which would most likely cause a decrease in the rate of energy production in a fusion nuclear reactor?

A
a drop in the number of reactions that involve the splitting of nuclei
B
a drop in the temperature in the reactor
C
an increase in the number of neutrons in the reactor
D
an increase in the amount of nuclear fuel used in the reactor
4

The nuclear equation is incomplete. 1 to the 1th power cap h plus 7 to the 15th power cap n rightarrow ? plus 2 to the 4th power He What particle completes the equation?

A
5 to the 11th power cap b
B
5 to the 11th power Na
C
6 to the 12th power Mg
D
6 to the 12th power cap c
5

The nuclear equation is incomplete. 94 to the 239th power Pu plus 0 to the 1th power n rightarrow 40 to the 100th power Zr plus ? plus 2 sub 0 to the 1th power n What particle completes the equation?

A
54 to the 119th power Xe
B
54 to the 139th power Xe
C
52 to the 138th power Te
D
54 to the 138th power Xe
6

Which is a product of nuclear fusion?

A
two nuclei that are roughly half the mass of the starting materials
B
a nucleus that has a greater mass number than the starting materials
C
a nucleus that has the same atomic number as the starting materials
D
two nuclei that have greater atomic numbers than the starting materials
7

The process in which the nucleus of an atom splits into two lighter atoms, releasing a large amount of energy, is nuclear ______

A
Radiation
B
Energy
C
Fusion
D
Fission
8

What conditions are required for nuclear fusion?

A
low temperature and low pressure
B
low temperature and high pressure
C
high temperature and high pressure
D
high temperature and low pressure
9

Which expression should Trudy write?

A
6 m sub p plus 8 m sub e minus m sub cap c minus 14
B
open paren 6 m sub p plus 8 m sub n close paren minus m sub cap c minus 14
C
m sub p plus m sub n minus m sub cap c minus 14
D
open paren 8 m sub p plus 6 m sub n close paren minus m sub cap c minus 14
10

Which labels belong in the regions marked X and Y?

A
X: Converts mass into energy Y: Is controlled by neutron absorption
B
X: Provides household electricity Y: Has rods containing uranium
C
X: Provides household electricity Y: Requires high temperature and pressure
D
X: Converts mass into energy Y: Does not produce usable amounts of energy
11

Which statement describes why energy is released in a nuclear fusion reaction based on mass-energy equivalence?

A
For small nuclei, the binding energy of the lighter nuclei is less than the binding energy of the heavier nucleus.
B
For large nuclei, the mass of the original nucleus is greater than the mass of the products.
C
For small nuclei, the binding energy of the lighter nuclei is greater than the binding energy of the heavier nucleus.
D
For large nuclei, the mass of the original nucleus is less than the mass of the products.
12

What is the energy equivalent of an object with a mass of 2 point 5 kilograms ?

A
3 point 6 times 10 to the 16th power cap j
B
5 point 5 times 10 to the 8th power cap j
C
7 point 5 times 10 to the 8th power cap j
D
2 point 2 5 times 10 to the 17th power cap j
13

What is the energy equivalent of an object with a mass of 1 point 0 5 g ?

A
9 point 4 5 times 10 to the 16th power cap j
B
3 point 1 5 times 10 to the 5th power cap j
C
3 point 1 5 times 10 to the 8th power cap j
D
9 point 4 5 times 10 to the 13th power cap j
14

Which statement correctly describes mass-energy equivalence?

A
All energy in the universe will be converted to an equivalent amount of mass.
B
A large amount of mass is equivalent to a small amount of energy.
C
Mass can decrease in nuclear changes without the production of energy.
D
All energy in the universe is a result of mass being converted into energy.
15

The nuclear equation is incomplete. 94 to the 239th power Pu plus 0 to the 1th power n rightarrow 40 to the 100th power Zr plus ? plus 2 sub 0 to the 1th power n What particle completes the equation?

A
54 to the 138th power Xe
B
52 to the 138th power Te
C
54 to the 119th power Xe
D
54 to the 139th power Xe
16

Which is a product of nuclear fusion?

A
two nuclei that are roughly half the mass of the starting materials
B
two nuclei that have greater atomic numbers than the starting materials
C
a nucleus that has the same atomic number as the starting materials
D
a nucleus that has a greater mass number than the starting materials
17

The nuclear equation is incomplete. 1 to the 1th power cap h plus 7 to the 15th power cap n rightarrow ? plus 2 to the 4th power He What particle completes the equation?

A
6 to the 12th power cap c
B
5 to the 11th power cap b
C
5 to the 11th power Na
D
6 to the 12th power Mg
18

The starting materials in a nuclear change have a total mass of 2 point 3 4 6 5 times 10 to the negative 27 power kilograms After the change, the resulting materials have a mass of 2 point 3 1 4 8 times 10 to the negative 27 power kilograms How much energy was released during the change?

A
2 point 1 1 times 10 to the negative 10 power cap j
B
2 point 0 8 times 10 to the negative 10 power cap j
C
2 point 8 5 times 10 to the negative 12 power cap j
D
8 point 5 6 times 10 to the negative 4 power cap j
19

What are the starting materials for nuclear fission?

A
two large nuclei
B
two small nuclei
C
a neutron and a small nucleus
D
a neutron and a large nucleus

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