RAD 1500 Unit 1 & 2 Review

Radiation is defined as:

• A form of energy carried by waves or streams of particles.

• A beam of energy that has the power to penetrate substances and record image shadows on photographic film.

• A high-energy radiation produced by the collision of a beam of electrons with a metal target in an x-ray tube.

• A branch of medicine that deals with the use of x-rays.

A radiograph is defined as:

• A beam of energy that has the power to penetrate substances and record image shadows on photographic film.

• A picture on film produced by the passage of x-rays through an object or body. (like a photograph made with x-radiation)

• The art and science of making radiographs by the exposure of film to x-rays.

• A form of energy carried by waves or a stream of particles.

Which of the following statements is/are true of wavelength in reference to radiation?

• a. X-rays with longer wavelength have less penetrating power.

• b. X-rays with longer wavelength have more penetrating power.

• c. X-rays with longer wavelength are more likely to be absorbed by matter.

• d. Both a and c.

The fundamental unit of matter is the

The nucleus of an atom contains

• A. Proton

• B. Neutrons

• C. Electrons

• D. A. & B.

Which subatomic particle carries a negative electrical charge?

Which of the following statements is/are true of ionization?

• a. An atom that gains an electron will have a negative charge.

• b. An atom that loses an electron will have a negative charge.

• c. An atom that loses an electron will have a positive charge.

• Both a and c.

Radiation is the emission and propagation of energy through space or a substance in the form of waves or particles.

• true

• false

Radioactivity can be defined as the process by which certain unstable atoms or elements undergo spontaneous disintegration, or decay, in an effort to attain a more balanced nuclear state

• true

• false

Which of the following forms of electromagnetic radiation are capable of ionization?

• radio waves

• visible light

• x-rays