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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

The image below shows a simplified version of the binding energy per nucleon E of nuclei versus the nucleon number N. Which of the following positions represents nuclei that are the most stable?

q11_nuclear-reactions_ib-sl-physics-mcq

    Choose your answer
      

    Question 2

    Marks: 1

    The rest mass of a nucleus of Boron-11 (B presubscript 5 presuperscript 11) can be considered as mB. The rest-masses of a neutron and proton can be considered as mN and mP respectively. Which of the following equations is the correct representation for the binding energy of Boron-11?

    • (5mP + 6mNmB)c2

    • (5mP + 6mN + mB)c2

    • (5mP + 11mNmB)c2

    • (6mP + 5mNmB)c2

    Choose your answer
      

    Question 3

    Marks: 1

    Which statement about nuclear binding energy is correct?

    • It is the energy equivalent of the mass of the neutrons in a nucleus

    • It is the energy required to separate nucleons in a nucleus

    • It is the energy required to overcome the electrostatic force between nucleons in the nucleus

    • It is the energy required to remove a single nucleon from a nucleus

    Choose your answer
      

    Question 4

    Marks: 1

    The binding energy per nucleon is 7.98 MeV for an atom ofblank subscript 8 superscript 16 O . Approximately how much energy would be needed to completely separate the nucleons of this atom?

    • 33.2 MeV

    • 63.9 MeV

    • 88.5 MeV

    • 127.7 MeV

    Choose your answer
      

    Question 5

    Marks: 1

    The mass defect for Helium-4 is 5.04 × 10–29 kg. What is the binding energy of Helium-4 closest to?  

    • 0.02 MeV

    • 28 MeV

    • 190 MeV

    • 1225 MeV

    Choose your answer
      

    Question 6

    Marks: 1

    Which of the following isotopes releases the least amount of potential energy during nuclear fission?

    • Uranium-235

    • Thorium-231

    • Radon-222

    • Osmium-190

    Choose your answer
      

    Question 7

    Marks: 1

    Two identical nuclei of mass m fuse to form a single heavier nucleus (with no other products) with mass M. Which of the following statements is correct?

    • m = M

    • 2m = M

    • 2m > M

    • 2m < M

    Choose your answer
      

    Question 8

    Marks: 1

    Alchemists investigated the process of transmutation of mercury into gold. This can be represented by the following equation:

    straight H presubscript 1 presuperscript 2 plus Hg presubscript 80 presuperscript 199 rightwards arrow Au presubscript 79 presuperscript 197 plus He presubscript 2 presuperscript 4

    The sum of the rest masses of deuterium and mercury is 202.60 u and the sum of the rest masses of gold and helium are 200.97 u.

    Take the energy equivalent of 0.001 u to be 1 MeV.

    Which of the following can be determined from the information provided?

    • Energy of approximately 2000 MeV has been converted to a mass of 2 u

    • The kinetic energy of the products exceeds the kinetic energy of the reactants by 2000 MeV

    • The number of nuclei of gold is not equal to the number of nuclei of mercury

    • The kinetic energy of the deuterium nucleus was 2000 MeV

    Choose your answer
      

    Question 9

    Marks: 1

    Nitrogen-14 can be transformed into Oxygen-17 by bombardment with high energy alpha particles, as described in the nuclear reaction equation below:

    N presubscript 7 presuperscript 14 plus scriptbase H e end scriptbase presubscript 2 presuperscript 4 rightwards arrow O presubscript 8 presuperscript 17 plus H presubscript 1 presuperscript 1

    The total rest mass of the reactants is 18.006 u and total rest mass of the products is 18.007 u.

    Which of the following statements about this reaction is correct?

    • A mass of 0.001 u has been converted to about 1 MeV of energy

    • The kinetic energy of the products exceeds the kinetic energy of the reactants by about 1 MeV 

    • The kinetic energy of the reactants exceeds the kinetic energy of the products by about 1 MeV

    • The mass defect of this reaction is 0.002 u

    Choose your answer
      

    Question 10

    Marks: 1

    The graph below shows how the average binding energy per nucleon varies with nucleon number for stable nuclei.

    q20_nuclear-reactions_ib-sl-physics-mcq-tif

    Approximately how much energy is released when the nucleus  forms?

    • 7.90 MeV

    • 1430 MeV 

    • 533 MeV

    • 888 MeV

    Choose your answer