Exam 2: Characteristics and Measurement of Radiation

What is defined as anything that occupies space and has mass?

The majority of x-rays produced by dental x-ray machines are formed by general (bremsstrahlung) radiation.

X-rays of high energy and extremely short wavelengths are classified as hard radiation.

Each of the following statements about electromagnetic radiations is true EXCEPT one. Which one is the EXCEPTION?

Matter is defined as the ability to do work and overcome resistance.

The Compton effect causes x-rays to be scattered in all directions.

When radiation has great penetrating power it is called what?

A weighting (qualifying) factor is used to determine which of the following?

What is the maximum number of electron shells (energy levels) an atom can have?

Energy that travels in a different direction than that of the original x-ray is collectively called "secondary radiation."

When x-rays pass through matter, which interaction results in x-rays being scattered in all directions?

X-rays make the materials they pass through radioactive.

The amount of energy deposited in the teeth or soft tissue by any type of radiation is called the:

What is the name of the process in which unstable elements undergo spontaneous decay in order to become stable?

Which of the following statements about x-rays is NOT true?

The emission and movement of electromagnetic or particulate energy through space is known as:

Wavelength and frequency are directly related.

The number of electrons in the nucleus of an element determines its <KT>atomic number.

Kinetic energy is the internal energy within the atom that holds its components together.

The photoelectric effect is an all-or-nothing energy loss.