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Special Relativity Amanda Dorsey Special Relativity Amanda Dorsey

Special Relativity Amanda Dorsey - PowerPoint Presentation

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Special Relativity Amanda Dorsey - PPT Presentation

Faranak Islam Jose Guevara Patrick Conlin Outline Creation of special relativity Why it was created Two postulates Predictions Length contraction Time dilation Impact Then Now In the future ID: 652780

special relativity theory frame relativity special frame theory speed 2013 physics light mass space einstein reference retrieved time http

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Slide1

Special Relativity

Amanda Dorsey

Faranak

Islam

Jose Guevara

Patrick

ConlinSlide2

Outline

Creation of special relativity

Why it was created

Two postulatesPredictionsLength contractionTime dilationImpactThenNowIn the futureSlide3

Special Relativity Introduction

In

1905

Albert Einstein wrote “On the Electrodynamics of Moving Bodies”Special relativity is a theory that describes space and time based on inertial frames of reference – frames of reference in which all the laws of physics are followed Slide4

Why was the theory of special relativity created?

Galilean transformations

x’=x-

vty’=yz’=zt’=tMaxwell’s equations did not work with the transformations

Einstein set out to create a consistent theory for electrodynamicsSlide5

Postulates/Restrictions

There is no preferred frame

The laws of physics are the same in all inertial frames

The constancy of the speed of lightThe speed of light is a universal constantRestrictionsLinear motion Constant velocityNegligible gravitationSlide6

Lorentz Transformations

Describe how measurements of space and time for two observers are related.

x’=

(x-vt)y’=y

z’=z

t’=

All predictions relate a stationary frame to a moving frame using the

lorentz

factor (

)

 Slide7

Predictions

Properties:

Relativity of simultaneity

Phenomena:Length contractionTime dilationSlide8

Relativity of Simultaneity

Two simultaneous events in one frame may not be simultaneous in another frameSlide9

Length Contraction

As velocities near the speed of light, an object will appear shorter to an observer in an inertial frame

Ex: A spaceship traveling near the speed of light

10% speed of light 86.5% speed of lightSlide10

Time Dilation

Clocks in a moving frame of reference tick slower than clocks in a stationary frame.

Ex) Airplanes flying around the Earth

Traveling east, the clock would run slower relative to a stationary clock onthe earthTraveling west, the clocks would run faster relative to a stationary clock on

the earthSlide11

Theoretical Extension

Relativistic mass

As an object’s velocity nears the speed of light, it gains mass.

 

As energy is added to the particles (ex: by heating), the box gains massSlide12

What is the impact of the theory of special relativity?

Present applications

GPS satellites

Space travelNecessary for the study of high energy physics and other fields (ex. Cosmology) In the futureTime travel forward through timeMore advanced space travelSlide13

Conclusion

General relativity was then created 10 years later and included everything- nonlinear motion, acceleration, gravitation, etc.

Special relativity is now a worldwide accepted theory used of describing the world

Succeeded in creating a consistent theory for electrodynamicsChanged the definition of time and spaceSlide14

Thank you!

References

Special relativity”. Dictionary.com Unabridged. Retrieved October 08, 2013 from

http

://dictionary.reference.com/browse/special

relativity

H. Lorentz, A. Einstein, H. 

Minkowsky

. “

The Principle

of Relativity,” Methuen,

London

,

35 (1923) .Albert Einstein Photo. Funny Pun Punology. Retrieved November 25, 2013 from http://www.funny-joke-pictures.com/2013/03/funny-pun-punology-caption-pictures.html#ixzz2liUvsWCSKoks, Don. “What is relativistic mass?”. Retrieved November 25, 2013 from http://math.ucr.edu/home/baez/physics/Relativity/SR/mass.htmlThornton, Stephen; Rex, Andrew. “Special Theory of Relativity”. Modern Physics for Scientists and Engineers: 4th edition.:2013.“Relativistic Length Contraction”. The Physics classroom: 2013. Retrieved November 29, 2013 from http://www.physicsclassroom.com/mmedia/specrel/lc.cfm