Radiologic Science for Technologists: Physics, Biology, and
Protection 12th Edition by Stewart C. Bushong
, Chapter 01: Essential Concepts of Radiologic Science
Bushong: Radiologic Science for Technologists, 12th Edition
MULTIPLE CHOICE
1. Atoms and molecules are the fundamental building blocks of . a. energy
b. radiation
c. matter
d. gravity
ni anda akan menemui
ANS: C bahan pembelajaran yang disusun dengan teliti untuk membantu anda
belajar denganAtoms
lebih and
mudah dan berkesan.
molecules Setiap dokumen
are the fundamental building direka
blocks secara teratur supaya
of matter.
maklumat penting senang difahami dan diingati. Bahan ini sesuai untuk persediaan
peperiksaan,
2. ulang kaji,
Ice and danare
steam pengukuhan
examples ofpengetahuan.
two forms of Kualiti
. dan ketepatan sentiasa menjadi
keutamaan, memastikan
a. matter anda boleh belajar dengan yakin. Pelajar menghargai ringkasan yang
jelas dan penerangan praktikal yang menjimatkan masa serta mengurangkan tekanan.
b. radiation
Matlamat sayac.adalah
energyuntuk menjadikan pengalaman belajar anda lebih teratur dan produktif.
Muat turun dengan keyakinan dan gunakan sumber ini untuk meningkatkan prestasi akademik
d. work
anda secara konsisten.
ANS: A
Ice and steam are examples of two forms of matter.
Czech (±130 words)
The formula
3. obchodě
Vítejte v mém na E = mc2 Najdete
Stuvia! is the basis
zdeforpečlivě
the theory that led tostudijní
připravené the development
materiályof . a. x-rays
navržené
b. electromagnetic
tak, aby bylo učení jednodušší a radiation
efektivnější. Každý dokument má přehlednou strukturu, která
c. nuclear
usnadňuje pochopení power informací. Materiály jsou ideální pro přípravu na zkoušky,
důležitých
d. cathode ray
opakování i prohlubování tubes Důraz je kladen na kvalitu a spolehlivost, takže můžete
znalostí.
studovat s jistotou.
ANS: CStudenti oceňují j
The formula E = mc2 is the basis for the theory that led to the development of nuclear power.
4. Matter is measured in .
a.kilograms
b.joules
c.electron volts
d.rems
ANS: A
Matter is measured in kilograms.
5. Radio waves, light, and x-rays are all examples of energy.
a. nuclear
b. thermal
c. electrical
, d. electromagnetic
ANS: D
Electromagnetic energy includes radio waves, light, and x-rays as well as other parts of the
spectrum.
6. What is the removal of an electron from an atom called?
a.Ionization
b.Pair production
c.Irradiation
d.Electricity
ANS: A
The removal of an electron from an atom is called ionization.
7. Ionizing radiation is capable of removing from atoms as it passes through the matter.
a. neutrons
b. protons
c. electrons
d. ions
ANS: C
Ionizing radiation is capable of removing electrons from atoms as it passes through the
matter.
8. A moving object has energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic
ANS: B
A moving object has kinetic energy.
9. The energy of x-rays is _ .
a. thermal
b. potential
c. kinetic
d. electromagnetic
ANS: D
X-rays are a form of electromagnetic energy.
10. The biggest source of man-made ionizing radiation exposure to the public is
.
a. atomic fallout
b. diagnostic x-rays
c. smoke detectors
, d. nuclear power plants
ANS: B
Medical x-ray exposure is the biggest source of man-made radiation.
11. In the United States, we are exposed to _ mSv/year of ionizing radiation from the natural
environment. a. 0 to 5
b. 5 to 20
c. 20 to 90
d. 100 to 300
ANS: A
We are exposed to about 3 mSv/yr of ionizing radiation from natural environmental sources
in the United States.
12. Today, radiology is considered to be a(n) occupation. a. safe
b. unsafe
c. dangerous
d. high-risk
ANS: A
Today, radiology is considered to be a safe occupation because of effective radiation
protection practices.
13. is a special quantity of radiologic science.
a. Mass
b. Velocity
c. Radioactivity
d. Momentum
ANS: C
Radioactivity is a special quantity of radiologic science.
14. What does ALARA mean?
a. All Level Alert Radiation Accident
b. As Low As Reasonably Achievable
c. Always Leave A Restricted Area
d. As Low As Regulations Allow
ANS: B
ALARA means As Low As Reasonably Achievable.
15. Computed tomography was developed in the .
a. 1890s
b. 1920s
c. 1970s
d. 1990s