PHYSICS 1 EXAM 1 REVIEW

The first radiograph produced by Dr. Roentgen was of  his wife’s hand.

• True

• False

Acute radiodermatitis was:

1. a delayed reaction to excessive x-ray exposure.

2. the radiation burn resulting from excessive exposure to x-rays.

3. common among early patients and operators of x-ray equipment.

• 1 and 2

• 1, 2 and 3

• 2 and 3

• 1 and 3

The electricity applied to the tube during x-ray production is controlled at the

• table top

• control panel

• collimator

• tube housing

Which of the following is NOT a cardinal principle for minimizing radiation dose?

• time

• distance

• collimation

• shielding

In the early 1800s English chemist John Dalton theorized that:

1. elements form compounds.

2. atoms are unique to each element in size and mass

3. a chemical reaction results from atoms being rearranged.

• 1, 2 and 3

• 2 and 3

• 1 and 3

• 1 and 2

The earliest atomic theory based on an arrangement similar to the solar system is attributed to

• Thompson

• Rutherford

• Dalton

• Bohr

Which of the following electromagnetic radiations have the lowest energy level?

• X-rays

• Microwaves

• Radiowaves

• Visible light

Alpha and beta particles are similar to x-rays and gamma rays in that they

• have no mass.

• have characteristics of wavelength and frequency.

• have the energy to ionize matter.

• are part of the electromagnetic spectrum.

Half-life is half the time it takes for all the radioactivity to decay.

• True

• Falsa

When compared with a beta particle, the alpha particle is:

• much smaller.

• more penetrating.

• much larger.