(adsbygoogle = window.adsbygoogle || []).push({}); Time Dilation Q&A

The following questions explore the mechanics behind the theory of relativistic time dilation

NOTE* this is not a topic for questioning the validity of time dilation -

replies are expected to provide logical solutions based on relativistic principles

it is also not a podium for Philosophiae Doctors (PhD's) to present lectures

------------------------------------------------------------------------

The Questions

1. Special Relativity predicts that time on a clock in motion slows down relative to a stationary clock - and slows proportionately relative to it's speed - up to the speed of light where the clock in relative motion would completely stop

(1.) explain in simple terms what causes this phenomenon

2. a stationary clock on the earth moves faster relative to a clock on a satellite in geosynchronous orbit - since the satellite is travelling at thousands of meters per second - although it seems to stand still above a point on the earth

(2.) True/False (and why)

3. multiple choice: A. a clock on the earth moves faster relative to a clock on a spacecraft travelling away from the earth at 30000 m/s

B. the clock onboard the space craft moves faster relative to the clock on the earth

C. both move faster relative to one another

(3.) A, B, or C (and why)

4. if the spacecraft were stationary in space... the earth would move away from it at 30000 m/s in it's orbit around the sun

is there a difference between the earth moving away at 30000 m/s and the spacecraft moving away at 30000 m/s ?

(4.) Yes/No (and why)

5. if a spacecraft is travelling along earth's orbit in the opposite direction

at 299763458 m/s it is travelling away from earth at 299793458 m/s

(1000 m/s faster than lightspeed) does this violate Special relativity?

(5.) Yes/No (and why)

6. do the clocks stop onboard the above mentioned spaceship and then move backward in time relative to stationary clocks on the earth?

(6.) Yes/No (and why)

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Time Dilation Paradox

**Physics Forums | Science Articles, Homework Help, Discussion**