Chadwick discovers neutron
  • 1. Who discovered the neutron?
A) Ernest Rutherford
B) James Chadwick
C) Albert Einstein
D) Marie Curie
  • 2. When was the discovery of the neutron made?
A) 1945
B) 1932
C) 1958
D) 1920
  • 3. What is the role of a neutron in an atom?
A) To emit radiation
B) To generate electricity
C) To stabilize the nucleus
D) To form chemical bonds
  • 4. Which element did Chadwick use to discover the neutron?
A) Beryllium
B) Gold
C) Carbon
D) Iron
  • 5. Neutrons are found in the nucleus of atoms alongside which other particle?
A) Protons
B) Electrons
C) Photons
D) Quarks
  • 6. What is the electric charge of a neutron?
A) Variable
B) Negative
C) Positive
D) Neutral
  • 7. What subatomic particle did Chadwick's discovery help explain the presence of?
A) Neutron
B) Proton
C) Positron
D) Electron
  • 8. What is the typical kinetic energy of a neutron in a thermal nuclear reactor?
A) 100 keV
B) 1 MeV
C) 0.1 eV
D) 0.025 eV
  • 9. Why are neutrons important in nuclear reactors?
A) To generate electricity directly
B) To create anti-particles
C) To absorb excess protons
D) To sustain a nuclear chain reaction
  • 10. What type of radiation is emitted by a neutron?
A) Neutrons
B) Alpha particles
C) Gamma rays
D) Beta particles
  • 11. What is the interaction of neutrons with matter in neutron radiography?
A) Reflection and refraction
B) Ionization and excitation
C) Transmission and emission
D) Absorption and scattering
  • 12. What phenomena did Chadwick's discovery of the neutron contribute to in scientific research?
A) Advancement in computer programming
B) Improvement of rocket propulsion
C) Understanding nuclear structure
D) Development of radar technology
  • 13. Which particle shares similar stability roles in an atom as a neutron?
A) Boson
B) Electron
C) Neutrino
D) Proton
  • 14. What is the approximate mass of a neutron?
A) 0.5 atomic mass unit
B) 2 atomic mass units
C) 1 atomic mass unit
D) 0 atomic mass units
  • 15. What type of radiation did Chadwick use in his experiment?
A) Neutrinos
B) Beta particles
C) Alpha particles
D) Gamma rays
  • 16. What is the approximate size of a neutron in meters?
A) 1 x 10-9
B) 1 x 10-6
C) 1 x 10-15
D) 1 x 10-3
  • 17. What was Chadwick awarded for his discovery of the neutron?
A) Oscar Award
B) Grammy Award
C) Nobel Prize in Physics
D) Emmy Award
  • 18. What is the total number of neutrons and protons in an alpha particle?
A) 3
B) 2
C) 6
D) 4
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