Transcript Modern Physics Jeopardy

Fundamental
Forces
Uses for
Nuclear
Physics
Jeopardy
Decay
Nuclear
Stability
Einstein’s
Famous
Equation
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Final
Jeopardy
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Fundamental Forces - $100
• This force pulls all mass together and is responsible
for very large systems
• What is Gravity?
Fundamental Forces - $200
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This fundamental force is the reason negative
electrons surround a positive nucleous
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What is electromagnetic force?
Fundamental Forces - $300
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This fundamental force is what allows stars to
“burn” and allows neutrons to change into
protons-Beta Decay
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What is weak force?
Fundamental Forces - $400
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This fundamental force fights against the
repelling force of electromagnetic force caused
by proton-proton interactions inside the
nucleus…it holds the nucleus together
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What is strong force?
Fundamental Force - $500
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The fission of an atom occurs when this force is
overpowered due to its limited effective distance
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What is strong force?
Uses for Nuclear Physics - $100
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This device is used to detect radioactive particles
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What is the Geiger counter?
Uses for Nuclear Physics - $200
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This device takes 3-D “pictures” of internal body
structures and acronym CAT scan
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What is computerized axial tomography?
Uses for Nuclear Physics - $300
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High energy photons of this type of EM radiation
are used to precisely destroy cancer cells
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What are X-rays?
Uses for Nuclear Physics - $400
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Wilhelm Rӧntgen first discovered an unknown
radiation that allowed him to see through tissue
and examine the bones. A device was later
created that is commonly used in the medical
field and industrial fields.
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What is an X-ray machine?
Uses for Nuclear Physics - $500
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This device uses radio frequencies to excite
hydrogen atoms within a body to produce a
magnetic field. The field is used to produce an
image of the internal structures of the body
including soft tissue.
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What is magnetic resonance imaging or MRI?
Decay- $100
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This type of decay uses the weak force to
change neutrons into protons. In the process an
electron is emitted from the nucleus.
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What is beta decay?
Decay- $200
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This type of decay leads to a lower atomic mass
and number; a positive particle consisting of two
protons and two neutrons…a helium nucleus
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What is alpha decay?
Decay- $300
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This “decay” result from when an energetic
nucleus releases the energy in the form of a
high energy (high frequency) photon
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What is gamma decay?
Decay- $400
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This is the order from least to greatest
penetration power for the three types of decay
studied
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What is alpha, beta and gamma?
Decay- $500
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The correct order of
decays for the first
three reactions
(arrows)
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What is alpha, beta and beta
Nuclear Stability - $100
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This is the nuclear process by which lighter
elements combine to form heavier elements
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What is fusion?
Nuclear Stability - $200
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This is the process by which heavy elements
divide to form lighter elements and is due to an
imbalances between protons and neutrons…too
many neutrons
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What is fission?
Nuclear Stability - $300
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This is the most atomically stable element on
periodic table of elements
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What is iron?
Nuclear Stability - $400
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Nuclear reactors produce energy uses heavy
elements that undergo this process
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What is fission?
Nuclear Stability - $500
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Unstable isotopes of uranium are used in nuclear
bombs and nuclear reactors. This subatomic
particle allows more uranium to split creating a
“chain reaction”
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What is slow moving neutrons?
Einstein’s Famous Equation- $100
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This is Einstein’s most famous equation
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E=mc2
Einstein’s Famous Equation- $200
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This is what becomes of “missing” mass when
nucleon particles massed separately have more
mass than when massed together as an atom.
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What is energy?
Einstein’s Famous Equation- $300
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This is the amount of energy that is produced
when a nuclear reaction has a mass defect
(missing mass) of 9 x 10-16 kg
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81 joule
Einstein’s Famous Equation- $400
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This element has the lowest mass per nucleon of
any element
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Iron…the most stable
Einstein’s Famous Equation- $500
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The first atomic bomb, code name Trinity,
exploded with an energy of 75 TJ or 7.5 x 1013
Joules. A mass of this much had to be
converted to energy.
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8.33 x 10-4 kg or .833 grams
Final Jeopardy
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Today’s modern nuclear warheads are this type.
The first atomic bomb used against another
country was this type.
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Fusion bombs, Fission bombs