Nuclear Science Quiz

What force holds the atomic nucleus together?

• Gravity

• Electric force

• Strong nuclear force

• Magnetic force

How does the strong nuclear force compare to the electric force?

• The electric force is stronger and acts over short distances.

• The strong nuclear force is much stronger but only works over tiny distances.

• Both forces are equally strong and act over large distances.

• The strong nuclear force only affects electrons, while the electric force affects protons.

What makes a radioactive nucleus different from a stable nucleus?

• It has more electrons than protons.

• It has an unbalanced number of neutrons, making it unstable.

• It contains only protons.

• It has extra energy because of chemical reactions.

Which type of radiation is the most penetrating?

• Alpha particles

• Beta particles

• Gamma rays

• Neutrons

Which particle is essentially a helium nucleus?

• Gamma ray

• Beta particle

• Alpha particle

• Proton

Which of these statements about beta particles is true?

• They are stopped by a thin piece of paper.

• They are high-speed electrons or positrons ejected from the nucleus.

• They have no mass and no charge.

• They are the same as protons.

What is nuclear fission?

• The splitting of an atomic nucleus into smaller nuclei, releasing energy.

• The process of atoms combining to form heavier elements.

• The decay of radioactive isotopes into stable elements.

• The conversion of mass into energy through chemical reactions.

How is nuclear fusion different from nuclear fission?

• Fusion splits atoms, while fission joins them.

• Fission occurs in stars, while fusion happens in nuclear power plants.

• Fusion combines smaller nuclei into a larger one, releasing energy.

• Fission happens naturally, while fusion requires extreme heat.

What does Einstein’s equation (E = mc²) show?

• Mass and energy are interchangeable.

• Energy is unrelated to mass.

• The speed of light is affected by gravity.

• Only chemical reactions can produce energy.

What instrument is commonly used to detect radioactivity?

• A voltmeter

• A spectrometer

• A Geiger counter

• A sonar device