Nuclear binding energy

Nuclear binding energy Quiz

Spec 164–165 · Edexcel A-Level Physics: Quiz

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5 questions, one answer each

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  1. 1. What is the binding energy of a nucleus?

    • A. The energy released when it decays
    • B. The energy needed to remove one proton and leave the rest
    • C. The minimum energy needed to separate it into its individual nucleons
    • D. The kinetic energy of its nucleons

  2. 2. A nucleus has a mass deficit of 0.0300 u. What is this in kg? (1 u = 1.661 × 10⁻²⁷ kg)

    • A. 4.98×10−294.98 \times 10^{-29} kg
    • B. 4.98×10−264.98 \times 10^{-26} kg
    • C. 5.54×10−265.54 \times 10^{-26} kg
    • D. 3.00×10−23.00 \times 10^{-2} kg

  3. 3. A mass deficit of 1.0 × 10⁻²⁹ kg is equivalent to what energy? (c = 3.00 × 10⁸ m s⁻¹)

    • A. 3.0×10−213.0 \times 10^{-21} J
    • B. 1.0×10−291.0 \times 10^{-29} J
    • C. 9.0×10−139.0 \times 10^{-13} J
    • D. 9.0×10−219.0 \times 10^{-21} J

  4. 4. Why does the nucleus of an atom have less mass than its separate nucleons?

    • A. Some neutrons are destroyed when the nucleus forms
    • B. Energy is released when the nucleons bind, and this energy has an equivalent mass
    • C. The electrons add negative mass
    • D. The strong force has negative mass

  5. 5. A nucleus has a binding energy of 56 MeV and contains 8 nucleons. What is its binding energy per nucleon?

    • A. 448 MeV
    • B. 7 MeV
    • C. 64 MeV
    • D. 0.14 MeV

Quiz