Workbook: Fusion Natures Fundamental Energy Source - General ...

Fusion Workbook
1. A device which measures radiation
from radioactive material is:
a) thermometer
b) Geiger counter
c) photo multiplier tube
d) Gauss meter
2. Natural radioactive decay involves:
a) splitting of the nucleus of a
large atom
b) absorption of an electron by
an atom
c) release of an electron by an atom
d) combining of two lighter atoms to
form a heavier one
3. In a nuclear reaction:
a) energy within the nucleus
is released
b) energy can be in the form of
electromagnetic and kinetic energy
c) mass is converted to energy
d) all of the above
4. An alpha particle is:
a) nucleus of the hydrogen atom
b) two neutrons
c) nucleus of the helium atom
d) nucleus of the uranium atom
5. Which of the following consumer items
can contribute to radiation exposure?
a) cigarettes
b) camping lantern mantles
c) fertilizer
d) natural gas cooking
e) dental ware (crowns, dentures)
f) All of the above
6. Methods to reduce worker exposure
to radioactive materials are:
a) minimizing the time spent near the
radioactive material
b) maximizing the distance between
the radioactive material and the
worker
c) using shielding between the
radioactive material and the worker
d) All of the above
e) None of the above
7. Radon has a half-life of approximately
4 days. How long does it take a
sample containing radon to decay to
1/8th of its original radioactivity?
a) less than four days
b) exactly four days
c) more than four days
d) It can never reach this level
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