1. Matter is measured in ll ll ll .
a. kilograms
b. joules
c. electron volts ll
d. rems
ANS A
WER
Matter is measured in kilograms.
ll ll ll ll
:
2. Atoms and molecules are the fundamental building blocks of
ll ll ll ll ll ll ll ll .
a. energy
b. radiation
c. matter
d. gravity
ANS C
WER
Atoms and molecules are the fundamental building blocks of matter.
ll ll ll ll ll ll ll ll ll
:
3. Ice and steam are examples of two forms of
ll ll ll ll ll ll ll ll .
a. matter
b. radiation
c. energy
d. work
ANS: A
Ice and steam are examples of two forms of matter.
ll ll ll ll ll ll ll ll ll
4. The formula E = mc2 is the basis for the theory that led to the development of
ll ll ll ll
ll
ll ll ll ll ll ll ll ll ll ll ll .
a. x-rays
b. electromagnetic radiation ll
c. nuclear power ll
d. cathode ray tubes ll ll
ANS: C
The formula E = mc2 is the basis for the theory that led to the development of nuclear power.
ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll ll
5. Radio waves, light, and x-rays are all examples of
ll ll ll ll ll ll ll ll 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
ll ll ll ll ll ll ll ll ll ll ll ll ll
thespectrum.
ll l
, 6. A moving object has
ll ll ll energy.
a. potential
b. kinetic
c. nuclear
d. electromagnetic
ANS: B ll
A moving object has kinetic energy.
ll ll ll ll ll
7. What is the removal of an electron from an atom called?
ll ll ll ll ll ll ll ll ll ll
a. Ionization
b. Pair production ll
c. Irradiation
d. Electricity
ANS: A ll
The removal of an electron from an atom is called ionization.
ll ll ll ll ll ll ll ll ll ll
8. Ionizing radiation is capable of removing ll ll ll ll ll from atoms as it passes through
ll ll ll ll ll
thematter.
ll l
a. neutrons
b. protons
c. electrons
d. ions
ANS: C ll
Ionizing radiation is capable of removing electrons from atoms as it passes through the matter.
ll ll ll ll ll ll ll ll ll ll ll ll ll ll
9. The energy of x-rays is _
ll ll ll ll ll .
a. thermal
b. potential
c. kinetic
d. electromagnetic
ANS: D ll
X-rays are a form of electromagnetic energy.
ll ll ll ll ll ll
10. The biggest source of man-made ionizing radiation exposure to the public is
ll ll ll ll ll ll ll ll ll ll ll
ll .
a. atomic fallout ll
b. diagnostic x-rays ll
c. smoke detectors ll
d. nuclear power plants ll ll
ANS: B ll
Medical x-ray exposure is the biggest source of man-made radiation.
ll ll ll ll ll ll ll ll ll
11. In the United States, we are exposed to
ll ll ll ll ll ll ll _ mSv/year of ionizing radiation from
ll ll ll ll ll
thenatural environment.
ll l ll
a. 0 to 5 ll ll
b. 5 to 20 ll ll
c. 20 to 90 ll ll
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