3.03.23 | Physics Quiz

____________________ is when small nuclei become more stable by joining together to form larger nuclei

• Fusion
• Fission
• Half Life
• Decay

Each particular ____________________ has its own half-life.

• Isotope
• Proton
• Neutron
• Nucleon

The breakup of a larger nucleus into two or more smaller nuclei is ____________________.

• Fission
• Fusion
• Half Life
• Conservation

Nuclear power plants produce electricity through _____.

• induced fission
• beta decay
• Alpha decay
• induced fusion

Which one of these statements is true about the moderator and the control rods in a nuclear power station?

• The control rods slow the neutrons down, while the moderator absorbs the neutrons
• The moderator slows the neutrons down, while the control rods absorb the neutrons
• The moderator and control rods absorb the neutrons
• None of the above

U-235 nuclei split when struck by _______.

• a neutron
• an electron
• a proton

Why are alpha particles easier to stop by materials than beta particles?

• They are larger
• They are weaker
• They are negatively charged
• They are slower

• 150
• 232
• 92
• 140

Fill in the blank(s): Each different isotope has the same number of ____________________ and a different number of ____________________.

• Protons, Neutrons
• Neutrons, Protons
• Protons, Electrons
• Electrons, Protons

Because of electromagnetic force, particles with opposite charges _____ each other and particles with the same charge repel each other.

• Attract
• Repel