101 Basic Physics Concepts Quiz!

40 Questions

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Physics Quizzes & Trivia

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Questions and Answers
  • 1. 
    What is a beta particle made of?
    • A. 

      One proton

    • B. 

      One electron

    • C. 

      Helium particle

    • D. 

      One proton and one neutron

  • 2. 
    Photons interact with matter by three primary means:
    • A. 

      Photoelectric Effect

    • B. 

      Compton scattering

    • C. 

      Pair Production

    • D. 

      All as above

  • 3. 
    Radioactive materials have unstable:
    • A. 

      Nuclei

    • B. 

      Electron

    • C. 

      Proton

    • D. 

      Neutron

  • 4. 
    The rate at which radioactive isotope changes to a more stable atom is know as the:
    • A. 

      Isotope decay rate

    • B. 

      Half-life

    • C. 

      Activity

    • D. 

      Attenuation

  • 5. 
    Which of these is the correct definition of half-life?
    • A. 

      The time it takes for the number of protons to halve

    • B. 

      The distance it takes for the number of nuclei to halve

    • C. 

      The time it takes for the number of nuclei to halve

    • D. 

      None of the above

  • 6. 
    What does alpha radiation consist of?
    • A. 

      One electron

    • B. 

      Two protons and two neutrons

    • C. 

      Electromagnetic radiation

    • D. 

      Two protons and 2 electrons

  • 7. 
    Which type of radiation is the least penetrating?
    • A. 

      Alpha

    • B. 

      Beta

    • C. 

      Gamma

    • D. 

      X-ray

  • 8. 
    What shape is the line on a decay curve for a radioactive substance?
    • A. 

      Straight line upwards

    • B. 

      Curve upwards

    • C. 

      Curve downwards

    • D. 

      Logarithmic

  • 9. 
    What are the two main nuclear fuels?
    • A. 

      Plutonium and mendelevium

    • B. 

      Uranium and curium

    • C. 

      Uranium and strontium

    • D. 

      Uranium and plutonium

  • 10. 
    Which type of radioactive decay produces light, fast-moving particles? 
    • A. 

      Alpha

    • B. 

      Beta

    • C. 

      Gamma

    • D. 

      None of the above

  • 11. 
    Gamma-ray photons have:
    • A. 

      No mass and no electric charge

    • B. 

      No mass and an electric charge of +1

    • C. 

      No mass and an electric charge of +2

    • D. 

      No mass and an electric charge of -1

  • 12. 
    Electron Capture involves:
    • A. 

      An electron combining with a neutron

    • B. 

      A neutron being ejected from the nucleus

    • C. 

      An electron being ejected from the nucleus

    • D. 

      An electron combining with a proton

  • 13. 
    In Alpha Decay:
    • A. 

      Z and A are unchanged

    • B. 

      Z decreases by 4 and A decreases by 2

    • C. 

      Z decreases by 2 and A decreases by 4

    • D. 

      Z decreases by 4 and A decreases by 4

  • 14. 
    Isomeric Transition involves:
    • A. 

      K-capture

    • B. 

      The conversion of a proton to a neutron

    • C. 

      The conversion of a neutron to a proton

    • D. 

      The emission of a gamma-ray

  • 15. 
    In Positron Emission:
    • A. 

      Z increases by 1 and A remains the same

    • B. 

      Z decreases by 1 and A remains the same

    • C. 

      Z remains the same and A decreases by 1

    • D. 

      Z remains the same and A increases by 1

  • 16. 
    Electron Emission involves the ejection of:
    • A. 

      A beta-minus particle

    • B. 

      An alpha-particle

    • C. 

      A beta-plus particle

    • D. 

      A proton and two neutrons

  • 17. 
    Carbon-11 is a radioactive isotope of carbon. Its half-life is 20 minutes. What fraction of the initial number of C-11 atoms in a sample will have decayed away after 80 minutes?
    • A. 

      1/16

    • B. 

      1/8

    • C. 

      1/4

    • D. 

      1/2

  • 18. 
    Mass Number is defined as:
    • A. 

      The number of protons in a nucleus

    • B. 

      The complement of the Atomic Number

    • C. 

      The number of neutrons in a nucleus

    • D. 

      The number of protons plus the number of neutrons in a nucleus

  • 19. 
    Atomic Number is defined as:
    • A. 

      The inverse of the Mass Number

    • B. 

      The number of protons plus the number of neutrons in a nucleus

    • C. 

      The number of protons in a nucleus

    • D. 

      The number of neutrons in a nucleus

  • 20. 
    Nuclear binding energies are usually expressed in units of:
    • A. 

      KeV

    • B. 

      MeV

    • C. 

      Joules

    • D. 

      EV

  • 21. 
    The Hydrogen-3 nucleus (also called Tritium) consists of:
    • A. 

      Two neutrons and one proton

    • B. 

      Two protons and one neutron

    • C. 

      Two neutrons and two protons

    • D. 

      Two neutrons and no protons

  • 22. 
    Radioactivity is the process of:
    • A. 

      A stable nucleus becoming unstable

    • B. 

      An electron moving to a lower energy shell

    • C. 

      An unstable nucleus becoming stable

    • D. 

      An electron moving to a higher energy shell

  • 23. 
    In the symbol Cs-137, the number 137 represents:
    • A. 

      Avogadro's number

    • B. 

      The mass number

    • C. 

      The number of electrons

    • D. 

      The atomic number

  • 24. 
    1 MBq is equal to:
    • A. 

      1 billion decays per second

    • B. 

      37 thousand, million curies

    • C. 

      1 decay per second

    • D. 

      1 million decays per second

  • 25. 
    The Half Life of 99m-Tc is 6 hours. After how much time will one-eighth of the radioactivity in a sample remain?
    • A. 

      6 hours

    • B. 

      12 hours

    • C. 

      18 hours

    • D. 

      24 hours