Nuclear Radiation Quiz 2

The human body has naturally occurring____________ which are a source of background radiation.

• radioactive

• non-radioactive

• alkali

• None of the above

The radioactive decay of what element (naturally present in many rocks and soils) produces radon gas?

• technetium

• francium

• plutonium

• uranium

Which of the following options are correct?

• Cosmic radiations are a source of natural background radiations.

• Rocks are a source of natural background radiations.

• Soil and plants are a source of background radiations.

• All of these are true

What is the primary source of natural background radiation that people are exposed to?

• radon

• the sun

• supernova

• rain

Over half of background radiation comes from what source?

• consumer product

• radon gas

• cosmic rays

• medical and dental x-rays

The nuclear chain reaction cannot be left to proceed unchecked. What are the devices called that absorb some of the neutrons to reduce the rate of fission in a nuclear reactor?

• moderators

• containment shields

• release valves

• control rods

The fuel rods of a nuclear power plant are typically comprised of a fissionable form of what element?

• uranium

• technetium

• curium

• radium

A deuterium atom (isotope of hydrogen with atomic mass of 2) combines with another deuterium atom in the sun to produce a helium atom and energy is released. This is an example of ________________.

• nuclear fission

• nuclear fusion

• combustion

• A single replacement reaction

A fusion reaction always creates which of the following?

• A massive amount of energy

• A massive amount of heat

• A larger atomic nucleus

• A larger amount of smaller nuclei

Stars get their energy from which type of reaction?

• fission

• combustion

• single replacement

• fusion