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DP IB Physics: HL

Topic Questions

Home / IB / Physics: HL / DP / Topic Questions / 7. Atomic, Nuclear & Particle Physics / 7.2 Nuclear Reactions / Multiple Choice


7.2 Nuclear Reactions

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

Choose your answer
  

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

  • fraction numerator M e V over denominator c end fraction

  • fraction numerator M e V over denominator c squared end fraction

  • e V

Choose your answer
  

Question 3

Marks: 1

The average binding energy per nucleon of Neon−20 open parentheses Ne presubscript 10 presuperscript 20 close parentheses nucleus is 8.0 MeV.

What is the total energy required to separate the nucleons of one nucleus of Ne presubscript 10 presuperscript 20?

  • 0 MeV

  • 8 MeV

  • 160 MeV

  • 800 MeV

Choose your answer
  

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
    Choose your answer
      

    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

    Choose your answer
      

    Question 6

    Marks: 1

    What is the approximate mass of oxygen−16 open parentheses O presubscript 8 presuperscript 16 close parentheses in atomic mass units?

    • 1 u

    • 8 u

    • 16 u

    • 3.00 × 108 u

    Choose your answer
      
    Key Concepts
    Atomic Mass Unit

    Question 7

    Marks: 1

    Nuclear reactions can be represented by equations.

    straight U presubscript 92 presuperscript 235 plus straight n presubscript 0 presuperscript 1 rightwards arrow 2 space Pd presubscript 46 presuperscript 116 space plus 4 space straight n presubscript 0 presuperscript 1

    Which type of reaction does the equation show?

    • Alpha decay

    • Beta decay

    • Nuclear fusion

    • Nuclear fission

    Choose your answer
      

    Question 8

    Marks: 1

    A nuclide of deuterium H presubscript 1 presuperscript 2 and a nuclide of tritium H presubscript 1 presuperscript 3 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

    Choose your answer
      

    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

    Choose your answer
      

    Question 10

    Marks: 1

    The following fusion reaction occurs in stars:

    straight H presubscript 1 presuperscript 2 plus straight H presubscript 1 presuperscript 3 rightwards arrow He presubscript 2 presuperscript 4 plus straight n presubscript 0 presuperscript 1

    The binding energies are given as follows:

    • The binding energy of deuterium, straight H presubscript 1 presuperscript 2 is 2.2 MeV
    • The binding energy of tritium, straight H presubscript 1 presuperscript 3 is 8.5 MeV
    • The binding energy of helium, He presubscript 2 presuperscript 4 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

    Choose your answer