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JeopardyJeopardyJeopardyJeopardyPHY101
Chapter 12 Review
Study of Special Relativity
Cheryl Dellai
Study of Special RelativitySpecial
Relativity
v approaches
c
Matter & Antimatte
rQuarks Hadrons Potpourri
$100 $100 $100 $100 $100 $100
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Special Relativity $100
What are the two postulates of special relativity?
ANSWER
ANSWER
Special Relativity $200
Einstein's famous equation
E0 = moc2 is a statement of __________.
ANSWER
Special Relativity $300
__________ is the prediction of special relativity that moving clocks run slow.
ANSWER
Special Relativity $400
The prediction from special relativity that the length of a moving object will be shortened in the direction of motion is called __________.
v approaches c $100
ANSWER
According to special relativity the __________ of a moving object is equal to .
ANSWER
Because of their short lifetimes, very few muons that are produced in the upper atmosphere at high speeds should be observed at the surface of the earth. Yet we detect large numbers of muons at ground level because of the special relativistic effect of _________ .
v approaches c $200
ANSWER
v approaches c $300
What happens as object approaches the speed of light?
v approaches c$400
ANSWER
What is the formula for length contraction?
Matter & Antimatter $100
ANSWER
An electron and a positron, which are two massive particles, can annihilate when they come together to produce two photons, which have no mass. According to special relativity, this pair annihilation is an example of __________.
Matter & Antimatter $200
ANSWER
When it comes near a heavy nucleus, a gamma ray, which is a high energy photon, can "disappear," and in its place there will be produced an electron and a positron, which both have mass. According to special relativity, this pair production is an example _________ .
Matter & Antimatter $300
ANSWER
The four fundamental forces in nature are _______ .
Matter & Antimatter$400
ANSWER
Models for combining gravity electromagnetic, weak and strong nuclear interactions into a single basic force.
Quarks $100
ANSWER
The fundamental particles that are the building blocks of hadrons are __________.
Quarks $200
ANSWER
Give an example of a lepton.
Quarks $300
ANSWER
The six quantum numbers for quarks are _______ .
Quarks $400
ANSWER
The ______________ interaction alone can change one type of quark into another.
Hadrons $100
ANSWER
__________ is the collective name given for particles that interact via the strong force.
Hadrons $200
ANSWER
How many quark colors are there?
Hadrons $300
ANSWER
The color force between quarks that binds quarks together is carried by __________.
Hadrons $400
ANSWER
If the charge on a Cheryl is +, the charge on an anti-Cheryl is ________.
Potpourri $100
ANSWER
The quark structure of the proton is __________.
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ANSWER
The quark structure of the neutron is __________.
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ANSWER
Quarks have electric charges of magnitude of ______ .
Potpourri $400
ANSWER
What's the quark structure of an antiproton?
Special Relativity$100
Answer
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What are the two postulates of special relativity?
The Laws of physics apply in all inertial frames of reference. There is no preferred frame.
The speed of light in a vacuum is constant for all frames.
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Einstein's famous equation EO = mOc2 is a statement of The equivalence of mass and energy EO = rest energy mO is called rest mass.
Special Relativity$300
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Time dilation is the prediction of special relativity that moving clocks run slow.
Special Relativity$400
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The prediction from special relativity that the length of a moving object will be shortened in the direction of motion is called length contraction.
v approaches c$100
Answer
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According to special relativity the kinetic energy of a moving object is equal to .
v approaches c$200
Answer
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Because of their short lifetimes, very few muons that are produced in the upper atmosphere at high speeds should be observed at the surface of the earth. Yet we detect large numbers of muons at ground level because of the special relativistic effect of time dilation.
v approaches c$300
Answer
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What happens as object approaches the speed of light?
Mass increasesLength contractsTime Slows down
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What is the formula for length contraction?LRel = Lo*(1- (v/c)²)0.5
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Answer
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An electron and a positron, which are two massive particles, can annihilate when they come together to produce two photons, which have no mass. According to special relativity, this pair annihilation is an example of the equivalence of mass and energy .
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Answer
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When it comes near a heavy nucleus, a gamma ray, which is a high energy photon, can "disappear," and in its place there will be produced an electron and a positron, which both have mass. According to special relativity, this pair production is an example the equivalence of mass and energy
Matter & Antimatter $300
Answer
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The four fundamental forces in nature are
•strong interaction, •weak interaction, •electromagnetic interaction, •gravitational interaction
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Answer
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Models for combining gravity electromagnetic, weak and strong nuclear interactions into a single basic force.
Grand Unification Theories
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The fundamental particles that are the building blocks of hadrons are Quarks.
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Give an example of a lepton.
electron
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The six quantum numbers for quarks are up, down,
strange, charm,
bottom (beauty), top (truth)
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The weak interaction alone can change one type of quark into another.
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Hadron is the collective name given for particles that interact via the strong force.
Baryons have 3 quarks or anti quarks.Mesons have a quark and an anti quark.
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How many quark colors are there? 3 red, green and blue
Each quark in a baryon must be a different color.
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The color force between quarks that binds quarks together is carried by gluons.
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If the charge on a Cheryl is +, the charge on an anti-Cheryl is negative.
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The quark structure of the proton is uud.
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The quark structure of the neutron is udd.
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Quarks have electric charges of magnitude
1/3 e.2/3 e.
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What's the quark structure of an antiproton?
uud
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