2 Nuclear Radiation and the Inverse Square Law Quiz

What is alpha decay?

• The process by which a nucleus emits a beta particle

• The emission of gamma rays from a nucleus

• The release of an alpha particle from a nucleus

• The splitting of a nucleus into two smaller nuclei

Which of the following particles is emitted during beta minus decay?

• A proton

• A neutron

• An electron

• An alpha particle

Gamma radiation is characterized by:

• High mass and charge

• Being a type of electromagnetic radiation with no charge and no mass

• The emission of helium nuclei

• The conversion of neutrons into protons

The inverse square law states that the intensity of radiation:

• Increases in direct proportion to the square of the distance from the source

• Decreases in direct proportion to the distance from the source

• Decreases in direct proportion to the square of the distance from the source

• Is not affected by the distance from the source

Which type of radiation is most penetrating?

• Alpha radiation

• Beta radiation

• Gamma radiation

• All have the same penetrating power

What is the primary reason alpha particles are less penetrating than beta particles?

• Alpha particles have a lower energy

• Alpha particles have a higher mass and charge

• Gamma rays move slower than alpha particles

• Alpha particles are not actually particles

In the context of the inverse square law, if you double the distance from a radioactive source, the intensity of the radiation you receive will:

• Double

• Stay the same

• Be halved

• Be reduced to one quarter

Beta + decay results in the transformation of:

• A neutron into a proton

• A proton into a neutron

• Both A and B

• Neither A nor B

Which of the following is NOT a common use of gamma radiation?

• Sterilizing medical equipment

• Treating cancer

• Imaging the interior of the human body

• Increasing the mass of an object

The inverse square law is particularly important in which of the following fields?

• Thermal dynamics

• Acoustics

• Radiation protection

• Fluid dynamics