Question 1

Marks: 1

Which of the following is the best definition of the unified atomic mass unit?

A unit of mass which is equal to the mass of one-twelfth of a neutral carbon-12 atom
A unit of mass which is equal to the mass of half of a carbon-12 atom
A unit of mass which is equal to the mass of twelve grams of a neutral carbon-12 atom
A unit of mass which is equal to twice the mass of a neutral carbon-12 atom

Key Concepts

Mass Defect & Nuclear Binding Energy

Question 2

Marks: 1

Energy-mass equivalence is given by ΔE = Δmc².

Using the given equation, determine which of the following is a valid unit of mass.

$M e V$
$\frac{M e V}{c}$
$\frac{M e V}{c^{2}}$
$e V$

Key Concepts

Mass Defect & Nuclear Binding Energy

Question 3

Marks: 1

The average binding energy per nucleon of Neon−20 $({}_{10}^{20}{Ne})$ nucleus is 8.0 MeV.

What is the total energy required to separate the nucleons of one nucleus of ${}_{10}^{20}{Ne}$ ?

0 MeV
8 MeV
160 MeV
800 MeV

Key Concepts

Calculating Mass Defect & Nuclear Binding Energy

Question 4

Marks: 1

The graph shows the binding energy per nucleon against nucleon number.

7-2-nuclear-reactions-sl-mcqs-easy-q4-question

Which row in the table gives possible elements found on the graph at positions X, Y and Z?

	X	Y	Z
A.	Uranium	Calcium	Xenon
B.	Hydrogen	Uranium	Iron
C.	Calcium	Hydrogen	Iron
D.	Hydrogen	Iron	Uranium

Key Concepts

Binding Energy per Nucleon Curve

Question 5

Marks: 1

Which statement is correct regarding nuclear fission?

The daughter nucleus has a greater nucleon number than the original nucleus
Energy is absorbed during nuclear fission
The combined mass of the daughter nuclei is less than the mass of the original nucleus
Nuclear fission is the joining of two small nuclei to produce a larger nucleus

Key Concepts

Nuclear Fission & Fusion

Question 6

Marks: 1

What is the approximate mass of oxygen−16 $({}_{8}^{16}O)$ in atomic mass units?

1 u
8 u
16 u
3.00 × 10⁸ u

Key Concepts

Atomic Mass Unit

Question 7

Marks: 1

Nuclear reactions can be represented by equations.

${}_{92}^{235}U + {}_{0}^{1}n \to 2 {}_{46}^{116}{Pd} + 4 {}_{0}^{1}n$

Which type of reaction does the equation show?

Alpha decay
Beta decay
Nuclear fusion
Nuclear fission

Key Concepts

Nuclear Fission & Fusion

Question 8

Marks: 1

A nuclide of deuterium ${}_{1}^{2}H$ and a nuclide of tritium ${}_{1}^{3}H$ undergo nuclear fusion.

Which statement is not correct about nuclear fusion?

For fusion to occur both nuclei must have high kinetic energy
The process of fusion absorbs energy
Fusion is the combining of two smaller nuclei into a larger nucleus
Fusion is the process that powers stars

Key Concepts

Nuclear Fission & Fusion

Question 9

Marks: 1

Which statement is a definition of binding energy per nucleon?

The difference between an atom's mass and the sum of the masses of its nucleons
The binding energy of a nucleus divided by the number of nucleons in the nucleus
The energy required to break a nucleus into its constituent protons and neutrons
The amount of kinetic energy required for fusion to occur

Key Concepts

Mass Defect & Nuclear Binding Energy

Question 10

Marks: 1

The following fusion reaction occurs in stars:

${}_{1}^{2}H + {}_{1}^{3}H \to {}_{2}^{4}{He} + {}_{0}^{1}n$

The binding energies are given as follows:

The binding energy of deuterium, ${}_{1}^{2}H$ is 2.2 MeV
The binding energy of tritium, ${}_{1}^{3}H$ is 8.5 MeV
The binding energy of helium, ${}_{2}^{4}{He}$ is 7.1 MeV

Given that the energy released is the difference between the binding energy of the products and the reactants, how much energy is released in this fusion process?

2.2 MeV
3.6 MeV
7.1 MeV
10.7 MeV

Key Concepts

Calculating Energy Released in Nuclear Reactions
Nuclear Fission & Fusion

DP IB Physics: SL

Topic Questions

7.2 Nuclear Reactions

Question 1

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Question 2

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Question 3

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Question 4

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Question 5

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Question 6

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Question 7

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Question 8

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Question 9

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Question 10

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