Question 1

Which of the following products sometimes contain radioactive substances?

Accepted Answer

Dentures, tobacco products, and smoke detectors can contain radioactive substances. Dentures may contain trace amounts of radioactive materials from certain metals used. Tobacco products can contain polonium-210, a radioactive element. Smoke detectors often contain americium-241, a radioactive isotope used to detect smoke.

Question 2

Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei and is radioactive is called a(n):

Accepted Answer

A radioisotope is a radioactive isotope, which is an element with the same number of protons but different numbers of neutrons, and it is unstable, leading to radioactivity.

Question 3

The amount of exposure to radiation that a person receives is not affected by which of the following?

Accepted Answer

The size or weight of the radioactive source does not directly affect the amount of radiation exposure a person receives. The exposure is more directly related to the time of exposure, distance from the source, and the degree of radioactivity.

Question 4

Which of the following is an SI unit of ionizing radiation measurement?

Accepted Answer

The Becquerel (Bq) is the SI unit of radioactivity, which measures the rate of radioactive decay.

Question 5

The term mrad stands for:

Accepted Answer

The term "mrad" stands for "millirad," which is 1/1000 of a rad.

Question 6

Which of the following forms of radiation can penetrate up to a 2-cm layer of skin tissue?

Accepted Answer

The answer of Which of the following forms of radiation...

Question 7

Which of the following is a measure of radiation dose related to biological effect?

Accepted Answer

The rem or sievert is a measure of radiation dose that accounts for the biological effect of the radiation, considering the type of radiation and its impact on human tissue.

Question 8

Which of the following is a measure used to describe the amount of radioactivity in a sample of material?

Accepted Answer

The curie and becquerel are units used to measure radioactivity, indicating the number of disintegrations per second in a sample.

Question 9

Which of the following is a measure of the absorbed dose of radiation?

Accepted Answer

The rad (radiation absorbed dose) or gray (Gy) is a measure of the absorbed dose of radiation.

Question 10

Which of the following statements is false?

Accepted Answer

Alpha and beta particles can pose significant health hazards if ingested or inhaled, as they can cause damage to internal tissues and organs.

Question 11

Sources of nonionizing radiation include:

Accepted Answer

All the options listed (radiation from power lines, radio waves, infrared radiation, and visible light radiation) are sources of nonionizing radiation.

Question 12

A major concern of exposure to extremely low frequency radiation has been:

Accepted Answer

Exposure to extremely low frequency radiation has been primarily associated with an increased risk of leukemia, particularly in children, according to some studies.

Question 13

Which of the following statements is not accurate in view of research on the association between exposure to EMF and cancer?

Accepted Answer

Research on the association between exposure to EMF and cancer has not provided clear and definitive long-term effects, as the evidence remains inconclusive and open to debate.

Question 14

Which of the following portions of the optical spectrum has been most closely associated with adverse human health effects?

Accepted Answer

UVB radiation is most closely associated with adverse human health effects, such as skin cancer and cataracts, due to its ability to penetrate the skin and cause DNA damage.

Question 15

Which of the following is the most dangerous health effect linked to cell phone use?

Accepted Answer

Traffic crashes are the most dangerous health effect linked to cell phone use, as using a phone while driving significantly increases the risk of accidents.

Question 16

A radiation exposure device that is used commonly in the occupational environment is a film badge.

Accepted Answer

Film badges are used to monitor and measure radiation exposure for individuals working in environments where they may be exposed to ionizing radiation.

Question 17

The unit of energy associated with emissions from radioactive material (radionuclide) is the electron volt (eV).

Accepted Answer

The electron volt (eV) is a unit of energy commonly used in the field of nuclear physics to describe the energy of particles emitted by radioactive materials.

Question 18

The term __________ refers to the belief that some nonnutritional toxic substances also may impart beneficial or stimulatory effects at low doses, but at higher doses they produce adverse effects.

Accepted Answer

The answer of The term __________ refers to the belief...

Question 19

Environmental __________ produces one of the largest sources of human exposure to ionizing radiation and is thought to be one of the leading causes of lung cancer in the United States.

Accepted Answer

The answer of Environmental __________ produces one of the largest...

Question 20

Explain stochastic effects of radiation.

Accepted Answer

The answer of Explain stochastic effects of radiation....

Quiz 8: Ionizing and Nonionizing Radiation