Nuclear Physics: Radioactivity

Which type of radiation releases an electron?

• Alpha radiation

• Beta radiation

• Gamma radiation

What type of radiation can be stopped by clothing or a piece of paper?

• Alpha radiation

• Beta radiation

• Gamma radiation

What particle is released when an unstable isotope undergoes alpha radiation?

• A helium nucleus

• An electron

• A photon of light

Which process involves the splitting of large nuclei?

• Alpha decay

• Nuclear fusion

• Beta decay

• Nuclear fission

What type of nuclear reaction occurs in the Sun?

• Nuclear fission

• Beta decay

• Alpha decay

• Nuclear fusion

Which is NOT a characteristic of gamma radiation?

• High energized photon of light.

• Can be stopped by a sheet of aluminum foil.

• Is the most harmful type of radiation to humans.

• Our use of protection is concrete, or several inches of lead.

Name the most penetrating type of radiation.

• Alpha

• Beta

• Gamma

• Lambda

A helium nucleus with two protons and two neutrons is called a(n) ____ particle.

• alpha

• beta

• gamma

• lambda

The three types of nuclear radiation in order of increasing penetrating power are

• alpha, beta, gamma.

• alpha, gamma, beta.

• beta, alpha, gamma.

• gamma, alpha, beta.

Both a fusion reaction and a fission reaction produce

• heat (energy).

• light.

• sound.

• magnetism.