SPS4. Nuclear Chemistry

Quiz
•
Physics
•
8th Grade
•
Medium
+1
Standards-aligned
Tammy Pakulski
Used 321+ times
FREE Resource
13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the changes in nuclear structure as a result of fission and fusion?
The nucleus becomes larger in fission and smaller in fusion.
The nucleus becomes smaller in fission and larger in fusion.
The nucleus remains the same size in both fission and fusion.
The nucleus becomes unstable in fission and stable in fusion.
Tags
SPS4a
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which process involves the splitting of a nucleus into two smaller nuclei?
Fusion
Radioactive decay
Half-life
Fission
Tags
SPS4a
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uranium is bombarded by a neutron to start the process of fission as shown by the nuclear equation.
What is needed to complete the equation?
3 neutrons
3 beta particles
3 alpha particles
3 hydrogen atoms
Tags
SPS4a
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The diagram shows 2 hydrogen isotopes combining and producing helium and a neutron. What process is respresented by the diagram?
alpha decay
beta decay
fission
fusion
Tags
NGSS.HS-PS1-8
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the time it takes for half of a radioactive substance to decay called?
Radioactive period
Half-life
Decay time
Nuclear breakdown
Tags
SPS4b
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uranium-238, the most prevalent isotope in uranium ore, has a half-life of 4.5 billion years and spontaneously decays by alpha emission to thorium-234. If a sample of uranium ore contains 1,000 grams of uranium-238, how long will it take for 875 grams to decay to thorium-234? (875 grams is how much that has been lost/decayed. So 1000-875 = ? Based on that, how many half lives have taken place)
4.5 billion years
9.0 billion years
13.5 billion years
18.0 billion years
Tags
SPS4b
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are scientists currently researching how to develop nuclear fusion power as a clean energy source for the future? What are the challenges they are facing?
The materials produced in a nuclear fusion reactor are not hazardous.
Challenge: Fusion requires extrem temperature and pressure.
A nuclear fusion reactor does not need a containment vessel for the fusion reactions.
Challenge: Where to store radioactive wastes.
A nuclear fusion reactor boils water to produce steam which will be used to generate electricity.
Challenge: evironmental concerns
A nuclear fusion reactor must be heated to about 100,000,000 °C for the fuel to reach a plasma state.
Challenge: Thermal pollution in water sources.
Tags
SPS4c
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