Section 21.2
Nuclear Reactions and Energy
Practice Test
1.
In Einstein's famous equation E = mc
2
, which relates energy and mass, c represents the ___________________.
a.
caloric content
b.
specific heat
c.
speed of light
d.
speed of sound
Hint
2.
The splitting of an atomic nucleus into two or more large fragments is called ________________.
a.
alpha decay
b.
beta decay
c.
nuclear fission
d.
nuclear fusion
Hint
3.
These particles sustain a nuclear fission chain reaction.
a.
alpha particles
b.
beta particles
c.
neutrons
d.
protons
Hint
4.
_________ absorb some neutrons in a fission reactor to maintain the rate of reaction.
a.
Control rods
b.
Cooling towers
c.
Graphite blocks
d.
turbines
Hint
5.
Pu-239 is used to fuel a type of nuclear fission reactor called a ________________.
a.
breeder reactor
b.
fusion reactor
c.
linear accelerator
d.
synchrotron
Hint
6.
Two or more atomic nuclei combine to form a larger nucleus in this process.
a.
covalent bonding
b.
nuclear fusion
c.
nuclear fission
d.
nuclear splitting
Hint
7.
The products of the fusion reaction involving deuterium and tritium are a neutron and this particle.
a.
an alpha particle
b.
a beta particle
c.
a protium nucleus
d.
a U-235 nucleus
Hint
8.
If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?
a.
2
b.
4
c.
8
d.
16
Hint
