- What is the force responsible for holding the nucleus of an atom together?
a) Gravitational force
b) Weak force
c) Electromagnetic force
d) Strong force
Answer: d) Strong force
- Which of the following particles has the smallest mass?
a) Electron
b) Proton
c) Neutron
d) Alpha particle
Answer: a) Electron
- Which of the following particles is its own antiparticle?
a) Electron
b) Neutrino
c) Proton
d) Photon
Answer: b) Neutrino
- Which of the following particles is negatively charged?
a) Proton
b) Neutron
c) Alpha particle
d) Electron
Answer: d) Electron
- What is the process by which a nucleus splits into two or more smaller nuclei called?
a) Nuclear fusion
b) Radioactive decay
c) Nuclear fission
d) Beta decay
Answer: c) Nuclear fission
- What is the charge of a neutron?
a) Positive
b) Negative
c) Zero
d) Variable
Answer: c) Zero
- What is the most stable form of carbon?
a) Carbon-11
b) Carbon-12
c) Carbon-13
d) Carbon-14
Answer: b) Carbon-12
- What is the unit of electric charge?
a) Coulomb
b) Ampere
c) Volt
d) Ohm
Answer: a) Coulomb
- What is the minimum energy required to remove an electron from an atom?
a) Ionization energy
b) Nuclear energy
c) Binding energy
d) Kinetic energy
Answer: a) Ionization energy
- Which of the following particles is considered a lepton?
a) Proton
b) Neutron
c) Electron
d) Photon
Answer: c) Electron
- What is the process by which an unstable nucleus emits particles or energy to become more stable?
a) Nuclear fission
b) Nuclear fusion
c) Radioactive decay
d) Beta decay
Answer: c) Radioactive decay
- What is the force responsible for the beta decay of a neutron?
a) Strong force
b) Electromagnetic force
c) Weak force
d) Gravitational force
Answer: c) Weak force
- Which of the following particles has the highest mass?
a) Electron
b) Proton
c) Neutron
d) Alpha particle
Answer: d) Alpha particle
- What is the unit of energy used in particle physics?
a) Joule
b) Watt
c) Electronvolt
d) Newton
Answer: c) Electronvolt
- What is the process by which multiple atomic nuclei combine to form a heavier nucleus?
a) Nuclear fission
b) Nuclear fusion
c) Radioactive decay
d) Beta decay
Answer: b) Nuclear fusion
- What is the term for the amount of matter in an object?
a) Weight
b) Volume
c) Density
d) Mass
Answer: d) Mass
- What is the minimum mass required for a star to undergo a supernova explosion?
a) 1 solar mass
b) 2 solar masses
c) 8 solar masses
d) 20 solar masses
Answer: d) 20 solar masses
- What is the force responsible for the repulsion between like charges?
a) Weak force
b) Strong force
c) Electromagnetic force
d) Gravitational force
Answer: c) Electromagnetic force
- What is the term for the process by which a nucleus captures a neutron and becomes a heavier isotope?
a) Beta decay
b) Alpha decay
c) Nuclear fission
d) Neutron capture
Answer: d) Neutron capture
- What is the term for the number of protons in an atom's nucleus?
a) Mass number
b) Atomic number
c) Isotope number
d) Neutron number
Answer: b) Atomic number
- What is the process by which an electron moves to a lower energy level and emits a photon?
a) Ionization
b) Excitation
c) De-excitation
d) Annihilation
Answer: c) De-excitation
- What is the term for a particle consisting of a quark and an antiquark?
a) Meson
b) Baryon
c) Lepton
d) Neutrino
Answer: a) Meson
- What is the unit of radioactivity?
a) Becquerel
b) Curie
c) Gray
d) Sievert
Answer: a) Becquerel
- What is the process by which a proton decays into a neutron and a positron?
a) Beta decay
b) Alpha decay
c) Neutron capture
d) Positron emission
Answer: d) Positron emission
- What is the term for a particle consisting of three quarks?
a) Meson
b) Baryon
c) Lepton
d) Neutrino
Answer: b) Baryon
- What is the term for the mass defect of a nucleus?
a) Nuclear energy
b) Binding energy
c) Kinetic energy
d) Potential energy
Answer: b) Binding energy
- What is the term for a particle that carries the electromagnetic force?
a) Photon
b) Gluon
c) W boson
d) Z boson
Answer: a) Photon
- What is the process by which an unstable nucleus emits an alpha particle?
a) Beta decay
b) Alpha decay
c) Neutron capture
d) Positron emission
Answer: b) Alpha decay
- What is the term for the number of protons plus neutrons in an atom's nucleus?
a) Atomic number
b) Mass number
c) Isotope number
d) Neutron number
Answer: b) Mass number
- What is the term for the time required for half of a sample of radioactive material to decay?
a) Half-life
b) Decay constant
c) Activity
d) Cross section
Answer: a) Half-life
- What is the force responsible for the binding of quarks within a proton or neutron?
a) Weak force
b) Electromagnetic force
c) Strong force
d) Gravitational force
Answer: c) Strong force
- What is the term for a particle consisting of two quarks?
a) Meson
b) Baryon
c) Lepton
d) Neutrino
Answer: a) Meson